Hypro Pump: 5321C-D Twin Plunger Pump With Chemical Injector Head For Pressure Washing [5321C-D]

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Hypro 5321C-D Small Twin Plunger Pump with injector head, 2.2 GPM @ 1000 PSI @ 1800 RPM, Cast iron pump with base and Buna-N seals, 5/8" OD solid shaft, 1/2" NPT ports, 190 deg. max. temp., Plunger material: Stainless Steel, 11 lbs.

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Installation, Operation, Repair And Parts Manual
07/06
Description
Series 5300C-X, 5321C, 5322C and 5324C
Small Twin® Piston and Plunger Pumps Form L-0200P
The following special attention notices are used to notify
and advise the user of this product of procedures that
may be dangerous to the user or result in damage to the
product.
NOTE: Notes are used to notify of installation, operation,
or maintenance information that is important
but not safety related.
CAUTION: Caution is used to indicate the presence
of a hazard, which will or can cause minor injury or
property damage if the notice is ignored.
WARNING: Warning denotes that a potential hazard
exists and indicates procedures that must be followed
exactly to either eliminate or reduce the hazard,
and to avoid serious personal injury, or prevent
future safety problems with the product.
DANGER: Danger is used to indicate the presence
of a hazard that will result in severe personal injury,
death, or property damage if the notice is ignored.
Safety Information
SERIES 5321C & 5322C
Cast Iron Small Twin
Plunger Pump
Max. Flow Rate: ........................2.2 gpm
Max. Pressure: ........................1000 psi
Max. Speed: ............................1725 rpm
Ports:................................1/2" NPT inlet
1/2" NPT outlet
Max. Operating Temp.................180o F
SERIES 5300C-X
Cast Iron Small Twin
Piston Pump
SERIES 5324C
Cast Iron Small Twin
Piston Pump
Max. Flow Rate: ........................2.9 gpm
Max. Pressure: ..........................800 psi
Max. Speed: ............................1725 rpm
Ports:................................1/2" NPT inlet
1/2" NPT outlet
Max. Operating Temp.................140o F
Max. Flow Rate: ..................1.5, 2.0, 2.5
and 3.0 gpm
Max. Pressure: ..........................500 psi
Max. Speed: ............................1725 rpm
Ports:................................1/2" NPT inlet
1/2" NPT outlet
Max. Operating Temp.................140o F
DANGER: DO NOT pump flammable or explosive
fluids such as gasoline, fuel oil, kerosene, etc. DO
NOT use in explosive atmospheres. The pump
should be used only with liquids compatible with the
pump component materials. Failure to follow this
warning can result in personal injury and/or property
damage and will void the product warranty.
A pressure relief device, such as an unloader, relief
valve or balancing regulator must be installed on the
outlet side of the pump. Failure to do so could
result in personal injury and/or void the warranty.
• Be sure all exposed moving parts such as shafts,
couplers and adapters are properly shielded or
guarded and that all coupling devices are securely
attached before applying power.
• Hollow shaft pumps mounted directly onto power
shaft must be prevented from rotating with the
power shaft by means of a device such as a torque
arm. Pump must float freely on the power shaft and
must not be tied rigidly to equipment on which it is
mounted.
-2-
• Do not exceed recommended speed, pressure
and temperature for pump and equipment being
used.
• Before servicing, disconnect all power, make sure
all pressure in the system is relieved, drain all liquids
from the system and flush.
• Secure the discharge lines before starting the
pump. An unsecured line may whip, causing personal
injury and/or property damage.
• Check hose for weak or worn condition before
each use. Make certain that all connections are
tight and secure.
• Periodically inspect the pump and the system
components. Perform routine maintenance as
required (see Maintenance section).
• Protect pump from freezing conditions by draining
liquid and pumping rust inhibiting solution, such as
antifreeze, through the system, coating the pump
interior.
• Use only pipe, hose and fittings rated for the maximum
(or greater) PSI rating of the pump.
• Do not use these pumps for pumping water or
other liquids for human or animal consumption.
Drive Source Installation
This manual will cover the installation of the basic drive
configurations available for the Hypro Small Twin
Piston and Plunger pumps. Consult the manufacturer
of your motor or engine for additional information.
Read all instructions and general safety information
before attempting to install or operate the pump.
Belt/Pulley Drive Installation
Mounting Belts and Pulleys
Mount pulleys as close to pump and motor engine shaft
bearings as possible. Check alignment with a straight
edge as shown (See Figure 1). Make sure that belt has
proper tension. (Too much tension will cause bearing
wear; too little will cause slippage.) (See Figure 2). Check
with belt and pulley sources for specific recommendation.
To figure proper diameter of pump pulley, multiply
motor/engine RPM by diameter of the motor/engine pulley
and divide that figure by desired pump speed.
Pump = Motor RPM x Motor Pulley Size
Pulley Size Desired Pump Speed
Refer to pump performance charts to determine desired
speed to obtain desired maximum flow.
NOTE: Shaft rotation can be either clockwise or counterclockwise.
Push the belt midway
between the
pulleys, check the
deflection (d) and
adjust:
d = 0.016 x L
Four points of
contact indicate
alignment.
NOTE: Pump may
be mounted in other
orientations with
respect to the motor
or engine.
Figure 1
Figure 2
Direct Drive - Flexible Coupling Installation
First, slide coupling ends onto motor/engine and
pump shafts as far as possible (See Figure 3).
Mount motor/engine and pump onto base, shimming
pump or power unit so that shafts are aligned.
Leave enough space between ends of shafts to
allow coupling disc to be inserted. When alignment
is made, slide coupling ends over coupling disc.
Leave clearance between coupling ends and center
disc. Tighten screws in both coupling ends. For
electric motor drive, use couplings rated at least
twice the horsepower required to operate pump. For
gas engine drive, select couplings rated at three
times the required pump horsepower.
CAUTION:
For safety, always install a
shield over rotating shafts
and couplings.
Figure 3
L
d
-3-
IN OUT
Direct Drive - Hollow Shaft Installation
Hollow shaft models mount directly on the motor or
engine shaft (See Figure 4). Adapters are available to
convert some solid shaft models for direct shaft mounting.
After mounting the pump, always turn it by hand
to make sure the pump is operating freely. Never
apply power to a pump that appears to be stuck.
CAUTION: Use a torque arm to keep the pump
from rotating with the shaft. The pump must be
allowed to float on the shaft and must not be tied
rigidly to the equipment on which it is mounted.
CAUTION:
For safety, always install a shield
over rotating shafts. Or enclose
the pump/motor assembly inside
a housing.
Figure 4
System Installation
Figure 5
Piston Pump Installation
Accessories should be installed with solid piping and be
mounted as close to the pump as possible. The hose must
be used right after accessories.
NOTE: If remaining installation is solid piping, a two to
four foot length of hose must be installed between
accessories and solid piping.
Hose
Selection of the right size and type of hose is vital for good
performance. Be sure to hook up to the proper ports on the
pump (note markings “IN” and “OUT” on pump castings).
Suction Hose
Always use genuine suction hose compatible with the fluids
being pumped and at least the same inside diameter as
pump ports. If the suction hose is over 5 feet long, use the
next larger size hose. Keep the suction hose as short as
possible and restrictions such as elbows, check valves, etc.
at a minimum.
Discharge Hose
High pressure pumps require the use of special high pressure
discharge hose (2 rayon braid or equivalent). Use a
hose rated at least 50% greater than the highest operating
pressure required of pump. Example: If required pump pressure
is 200 psi, use discharge hose rated at minimum of 300
psi working pressure.
Unloader Valve
The unloader has a very important safety function in your
piston pump hookup. The unloader valve protects the pump
by unloading pressure when the gun is shut off or discharge
is otherwise blocked. This saves the pump and power
because the liquid is bypassed at a very low pressure. If the
gun is to be shut off for more than 5 minutes, install a pump
protector in the inlet side or stop the pump to prevent heat
buildup. The length of time may vary due to the original temperature
of the fluid being pumped.
Strainers
Use a suction line strainer with at least 3 to 5 times the suction
port area in open screen area. For example, an area of
approximately 1.1 to 1.9 square inches for a 1/2" suction
port. Be sure the screen is suitable for the liquid being
pumped. Keep the filter clean. A clogged strainer will cause
cavitation, which usually leads to a poor performance and
wear of the pump parts.
Pulsation
Dampener
Inlet
Pressure
Regulator
Compound
Gauge
Pump
Filled
Pressure
Gauge
Bypass Back to Inlet
Unloader
Valve
Spray
Gun
Nozzle
Line
Strainer
-4-
Compound Gauge (Optional)
The pump should not be subjected to high suction line vacuums.
To check on this, install a compound gauge at pump inlet.
For ultimate performance and life, the vacuum should be limited
to 5 inches of mercury. High vacuum conditions may cause
premature product failure and void warranty.
Pulsation Dampener
This device absorbs the shock and smooths out the pump discharge
pulsations, providing smoother operation. For the
proper operation of many unloader valves, the pulsation dampener
should be installed on the discharge side downstream
from the unloader valve. However, for maximum system protection,
the pulsation dampener may be installed upstream
from the unloader valve, provided the unloader valve will function
properly. The dampener can be mounted vertically or
horizontally.
Pressure Regulator
Use a pressure regulator to limit incoming pressure to 20 psi
when equipped with a suction side injector. Volume, pressure
and horsepower figures in pump performance tables do not
apply when incoming pressure exceeds 40 psi.
Pressure Gauge/Dampener
Use gauge capable of reading double the pump working pressure.
Use a silicone-filled gauge or a gauge dampener to protect
the gauge needle against pressure surges and provide
easier reading.
Operation
Priming
If the liquid is below level of the pump, some means
should be provided in installation to prime pump, such
as a foot valve or check valve to hold prime. Keep suction
lift to minimum and avoid unnecessary bends in the
suction line. Before starting pump, make sure air bleeder
valve or spray gun is open, or unloader valve is
adjusted to its lowest pressure. After starting pump,
open and close gun several times if necessary to aid
priming the pump. If pump does not prime within a few
seconds, stop motor and inspect installation for suction
line leaks or obstructions. Make sure that strainer is not
clogged. Be sure that suction line is not obstructed,
kinked or blocked.
If the pump is to operate hours at a time, check frequently
for:
1. Adequate liquid supply. Pump must not run dry for
more than 30 seconds.
2. Temperature rise. Overheating is harmful to bearings
and piston cups.
NOTE: Models 53702 and 53703 Inlet Requirements:
Pressure feed 20 to 100 psi.
Care of Pump
Your pump will last longer and give best performance
when properly taken care of. Proper pump care
depends on the liquid being pumped and when pump
will be used again. In a normal car wash or detergent
cleaning installation (where each application is followed
by a clear water rinse), the pump will be kept clean.
After each use, flush pump with a neutralizing solution
for the liquid just pumped. Follow with a clear water
rinse. This is especially important for corrosive chemicals.
Then flush out pump with a 50% solution of automotive
ethylene glycol-type radiator antifreeze containing
a rust inhibitor, or use a commercial rust inhibitor
such as FLUID FILM.
While this flushing is not absolutely necessary for short
periods of idleness (as overnight), it is good practice to
clean the pump after each use to prevent deposits from
forming and damaging the pump. The antifreeze not
only coats the interior of the pump with an inhibitor, but
acts as a lubricant as well, keeping valves from sticking
- and protecting against any remaining moisture freezing
in cold weather.
For infrequent use and before long periods of storage,
drain pump thoroughly. Open any drain plugs, remove
suction hose from liquid, and run pump “dry” from 0 to
30 seconds (not longer). Once again, a rust inhibitor
should be injected into the pump before both ports are
plugged and the pump is stored. Then, plug both ports
to keep out air until pump is used again.
Lubrication Schedule
Use a grease gun to lubricate Hypro Series 5300 and
5324 Piston Pumps and Series 5321 and 5322 Plunger
Pumps. DO NOT USE AIR-POWERED GREASE
GUNS as they develop too much pressure and may
cause damage to the sealed cam bearing.
Lubrication
EXCEPTION: In applications where FDA approval is
required, use one of these greases: Chevron FM#2,
Mobile FM#2 Keystone (Penwalt Corp.) Nevastane SP
Medium. Lubricate every 50 hours or monthly.
With a screwdriver or flat tool, apply a generous dab of
grease to outer diameter surface of cam bearing at top
and bottom where bearing contacts connecting rod.
Do not grease excessively.
Check periodically and scrape out (do not WASH out)
any excess grease from pump cavity.
-5-
Used for Series
Ref. Part No. Description 5321 5324 5300
A 1055-0005 Seal Ring Seating Tool •
B 3010-0052 Valve Cage Extractor • • •
C 3010-0061 Main Bearing Support Tool • • •
D 3010-0063 Cam Bearing Support Tool • • •
E 3010-0064 Support Bars (Qnty 2) • • •
F 3010-0065 Pry Bar • • •
G 3010-0066 Wire Brush • • •
H 3010-0067 Wire Brush Holder • • •
I 3010-0071 Valve Seat Extractor • • •
J 3010-0222 Seal Ring Seating Tool •
K 3020-0001 3/16" Allen Wrench • • •
L 3020-0003 1/8" Allen Wrench • • •
M 3020-0009 1/16" Allen Wrench • • •
Repair Instructions
Recommended Repair Tools
For Hypro Small Twin Piston/Plunger Pumps
Figure 6 Recommended Repair Tools
Recommended Shop Tools
Bench Press, Arbor Press, Air Gun or Electric Hand
Drill, Metal Pipe, Support Fixture, (3" diameter x 4 1/2"
high), Ratchet Handle Wrench with 9/16" Hex Socket,
Bolt (3/8" diameter x 4 1/2" long), No. 320 Grit Emory
Cloth, Pliers, Small Knife, Large File, Claw Hammer,
Standard Screwdriver, Lubricating Spray (WD-40 or
LPS), Wire Brush (hand or machine), Stationary Belt
Sander, and Cleaning Solvent Tank (recommended)
Inspection of Pump Parts
When disassembling pump, thoroughly inspect all
parts and replace if necessary, with special consideration
given to the following areas:
1. Inspect Pump Body for erosion at O-ring seal
points in Valve and Piston bores. Check for wear
resulting from Main Bearings turning in Housing,
especially the Front Bearing area closest to the
Cam Bearing. Check for cracks in the Pump Body,
particularly at the discharge port and along the
casting seam (See Figure 7).
2. Inspect for excessive wear on the Cylinder Heads.
This can result from erosion and/or valve seat
hammer (See Figure 7).
3. Inspect for pitting and general wear in the Unitized
Valves, particularly where the Poppets seal
against the seat. If this area is worn, replace all
four Valves (See Figure 7).
4. Inspect the Connecting Rod. If there is more than
.007" wear in the total space between the
Connecting Rod and Cam Bearing, the
Connecting Rod should be replaced. This can be
determined using a feeler gauge. The Cam
Bearing should also be inspected as a bad cam
bearing is the most common cause of a damaged
Connecting Rod. A worn Connecting Rod results
in low volume, low pressure, a hammering sound
and the pump running hot (See Figure 8).
5. Inspect Crankshaft Assembly for general wear.
Rotate Cam Bearing and Main Bearings to check
for roughness due to moisture contamination or
lack of grease. If main bearings do not turn
smoothly or appear to be damaged, they should
be replaced. If cam bearing is damaged, a new
Crankshaft Sub-assembly should be installed and
the connecting rod inspected for wear (See Figure
8).
NOTE: Always use new O-rings, Cups, Seal Rings,
Support Rings, Guides, Washers, and Piston Cap
Screws. If new Valves are needed, always replace
the complete set of four.
Figure 7
Figure 8
Use a feeler gauge on
this end to check
amount of space.
Check this area for
wear on both ends.
-6-
Series 5300X, 5321, 5322, & 5324
Disassembly, Repair, & Reassembly Instructions
NOTE: Due to variations in each model's Piston or
Plunger Stack, differences in the instructions for
each model will be denoted with italics and brackets.
HAZARDOUS SUBSTANCE ALERT: Always drain
and flush pump before servicing or disassembly.
Valve Assembly Removal:
1. Place the Pump upright in a bench-mounted vise
with the Safety Cover facing out; then, using a
9/16" wrench, remove the Cylinder Head Bolts.
2. Remove the Cylinder Head.
3. Using a screwdriver or knife, remove the Cylinder
Head O-ring from the Cylinder Head.
4. Using the Seat and Cage End Valve Extraction
Tools, remove the Unitized Valve Assembly from
the Pump Body (See Figures 9 and 10).
Figure 9
Figure 10
To remove Valve Cage.
Hook prongs of Valve
Cage Extractor under
three webs of the Valve
Cage and pull up with a
twisting motion.
To remove Valve Seat.
Hook Valve Seat Extractor
under Seat and work out
with an up and down
motion.
5. Rotate the Pump Shaft so the Cam Bearing is in
the upstroke position; then using a 3/16’’ Allen
wrench, remove the Cap Screw from the Piston
Assembly for Models 5300X and 5324 [For Models
5321 & 5322, remove the Plunger from the Pump
Body after the Cap Screw is removed].
6. Turn the Pump over and repeat Steps 1 through 5.
7. Position the Pump horizontally in the vise with the
Safety Cover side up.
8. Use a claw hammer to remove the Grease fitting
(See Figure 11). In most cases, the Grease Fitting
is damaged during removal and must be replaced
[At this time, remove the Connecting Rod in
Models 5321 & 5322].
Figure 11
Piston Sleeve Assembly Removal and
Cleanup (5300X and 5324 only)
See Figures 12 & 13 for Piston Stack Components
Cap Screw
Washer
O-ring
Cup Spreader
Cup
Cup Backing Plate
O-ring
Seal Ring
Guide
Figure 12
Cap Screw
Washer
Support Ring
Cup
Cup Holder
O-ring
Seal Ring
Guide
Figure 13
-7-
1. Leave the pump body horizontal in the bench vise
to remove the Cylinder Sleeves and Piston
Assemblies. Make sure the Cam Bearing is in the
upstroke position. Place one of the metal bars
provided in the tool kit on the Cylinder Sleeve.
2. Using a hammer, gently tap the Cylinder Sleeve
out of the Cylinder Head end of the pump body.
The Piston will also come out with the Cylinder
sleeve.
3. Turn the pump around in the vise and repeat
Steps 1 and 2.
4. Remove the Connecting Rod.
5. Remove the Piston Assembly from the Cylinder
Sleeve by pushing it out with your fingers; then
remove the washer.
6. Clean the cylinder sleeves using the burnishing
adapter supplied with the tool kit. The adapter is
mounted to an electric motor shaft. Insert the
Cylinder Sleeve (brass retainer end facing out)
into the furnishing adapter and polish the inside
surface using a No. 320 grit emery cloth. Use a
wire brush to clean the outside of the cylinder
sleeve. Upon inspection, if pitting or scratches still
show on the inside of the cylinder sleeve, the
cylinder sleeve must be replaced along with the
cylinder sleeve o-ring.
Crankshaft Assembly Removal
(All Models)
WARNING: Special attention should be exercised
when working with retaining rings. Always wear
safety goggles when working with spring or tension-
loaded fasteners or devices.
1. Place the pump on a flat surface with the shaft
side facing up; then remove the retaining ring from
the bearing bore.
2. Using a metal pipe 3" in diameter by 4-1/2" high as
a support fixture, place the pump on the fixture,
shaft side down. Position the fixture with pump on
the arbor press (See Figure 14).
3. Place a bolt 3/8" in diameter by 4-1/2" long threaded
end up on the Crankshaft Cam Bearing; then,
using the arbor press ram on the bolt, push the
Crankshaft Assembly out of the Pump Body (See
Figure 14).
Plunger Cartridge Removal/Disassembly/
Reassembly (Series 5321 and 5322 only)
See Figure 15 for Plunger Cartridge Components
Figure 14
To Remove the Plunger Cartridges from
the Pump Body:
1. Position the pump upright on the arbor press with
the Safety Cover opening facing out.
2. Place the Plunger Cartridge Extractor Tool,
machined side down, on the Guide Retainer inside
the pump body.
3. Place the bolt threaded-end down through the
Plunger Bore on the other end of the pump until it
rests in the counter-sink hole on the Cartridge
Extractor Tool.
4. Place the arbor press ram on the bolt head and
push both the Seal and Guide Retainer out of the
pump body (See Figure 16).
5. Turn the pump over and repeat Steps 1 through 4.
Washer (5322 ONLY)
Plunger: Steel (5321), Ceramic (5322)
Guide Retainer (Brass)
Seal Ring
O-ring
Guide
O-ring
Seal Retainer (Brass)
Inner Support Ring
Seal
Support Ring (Brass)
Washer
Cap Screw
Figure 15
Figure 16
-8-
To Disassemble the Guide and Seal
Cartridges:
1. Remove the Guide from the Guide Retainer by
pulling it out with one finger.
NOTE: If the guide does not come out in this manner,
use a screwdriver and a hammer to gently
break off a section of the Guide, being careful not
to damage the Guide Retainer. The remaining portion
of the Guide will then fall out.
2. With a small knife blade, remove the O-ring/Seal
Ring combination from the Guide Retainer.
3. Using a small knife blade, remove the Brass
Support Ring and Support Ring/Seal combination
from the Seal Retainer.
4. Inspect and clean the Brass Guide and Seal
Retainers. Clean them with a wire brush and
check them for burrs and nicks. Use 320 grit
emery cloth to remove burrs.
To Reassemble the Plunger Cartridges:
1. Lightly lubricate the O-ring and place it around the
Seal Ring.
2. Position the O-ring/Seal Ring combination in the
Guide Retainer at a 45 degree angle.
3. Using the Guide, seat the O-ring/Seal Ring
Combination into the Guide Retainer, leaving the
Guide in the Guide Retainer.
4. Place the Guide Retainer on a flat surface so that
the exposed portion of the Guide is down.
5. Place the cap screw end of the Plunger into the
Guide Retainer and press it through until the
Plunger is flush with the bottom of the Guide
Retainer.
6. Turn the Cartridge over and push the Guide
Retainer down the Plunger until it is flush with the
bottom of the Plunger.
Seal Retainer Cartridge:
1. Place the beveled side of the Inner Support Ring in
the grooved side of the Seal; then, place the Seal
Retainer over the Support Ring side of the Support
Ring/Seal combination.
2. Press the above items in with your fingers until the
Support Ring/Seal combination bottoms out inside
the Seal Retainer.
3. Place the Brass Support Ring on the open side of
the Seal Retainer.
Clean-up of the Pump Body and Heads (All
Models)
1. Using the port wire brush with an air gun or electric
hand drill, clean the outlet port and inlet port, plus
the valve and piston bores in the Pump Body.
2. Use a hand file or belt sander to clean corrosion
and rust from the top and bottom of the Pump
Body and the bottoms of the cylinder Heads.
3. After performing Steps 1 and 2, Hypro recommends
that the pump Body and Cylinder Head be
further cleaned in a solvent tank to remove any
remaining rust and corrosion particles.
NOTE: If the solvent cleaning is not performed, the
valve and piston bores must be wiped as clean as
possible.
Crankshaft and Main Bearing
Disassembly/Reassembly (All Models)
Disassembly:
1. To remove the Front Main Bearing from the
Crankshaft, position a pipe support fixture on the
arbor press; then, place two metal bars parallel to
each other, one on each side of the fixture (See
Figure 17).
2. Place the Crankshaft Assembly in the fixture, drive
end up, with the metal bars between the Bearing
and fixture to support the Outer Bearing (See
Figure 17).
NOTE: Make sure the metal bars do not touch the
Retaining Ring on the Crankshaft.
3. Using the arbor press, press the Crankshaft
through the Bearing (See Figure 17).
WARNING: Special attention should be exercised
when working with retaining rings. Always wear
safety goggles when working with spring or tension-
loaded fasteners or devices.
Figure 17
-9-
4. Remove the first Retaining Ring on the Crankshaft
with a pliers and the second Retaining Ring with a
screwdriver.
5. Press out the back Main Bearing in the same manner
as the front Main Bearing (Refer to Steps 1
through 3).
6. Remove the Slinger Ring by working it off the Shaft.
Reassembly
1. Install the back Main Bearing first. Place the
Bearing on the small opening end of the Main
Bearing Support Tool with the Slinger Ring on top
of the Bearing, and position it on the arbor press.
WARNING: Special attention should be exercised
when working with retaining rings. Always wear
safety goggles when working with spring or tension-
loaded fasteners or devices.
2. Place the Crankshaft in the Bearing and use the
arbor press ram to press the Crankshaft through
the Bearing until the Retaining Ring can be
installed in the second groove of the Crankshaft
(See Figure 18).
NOTE: Make sure the Slinger Ring does not touch
the Cam Bearing on the Crankshaft when installing
Retaining Rings.
3. Install both Retaining Rings on the Crankshaft.
Figure 18
4. Place the Pump Body, Safety Cover side down, on
the arbor press.
5. Place the Crankshaft, Back Bearing down, into the
bearing bore of the Pump Body.
6. Place the Main Bearing Support Tool , large opening
down, over the Crankshaft.
7. Use the arbor press ram to press the Crankshaft
Assembly into the bearing bore of the pump body
until it bottoms out.
8. Place the front Main Bearing on the Crankshaft until
it touches the pump body.
9. Place the smaller opening end of the Main Bearing
Support Tool over the Crankshaft (See Figure 19).
10. Turn the Pump and Main Bearing Support Tool
over so that the Safety Cover side of the pump is
facing up.
11. Position the Cam Bearing Support Tool with the
bolt head down over the Safety Cover opening on
the pump body.
Figure 19
Figure 20
Plastic Valve
Cage points Up.
12. Turn the bolt down by hand until it comes in contact
with the Cam Bearing.
13. Use the arbor press ram to press down on the bolt
in the Cam Bearing Support Tool to push the front
Main Bearing into the pump bearing bore until it
comes in contact with the first retaining ring on the
crankshaft.
14. Turn the pump over to install the Retaining Ring in
the pump bearing bore.
Valve Assembly Installation
1. Lubricate the Pump Body Valve Bores.
2. Install the Valve Assemblies into the INLET side
valve bores with the plastic valve cage portion facing
UP (See Figure 20).
3. Install the Valve Assemblies into the OUTLET side
valve bores with the metal valve seat portion facing
UP (See Figure 21).
4. Apply a small amount of grease to the top and bottom
inside surfaces of the Connecting Rod. (The
area where the Cam Bearing comes in contact
with the Connecting Rod.)
-10-
5. Place the Connecting Rod on the Cam Bearing.
Metal Valve
Seat Points up.
Figure 21
Cylinder Sleeve and Piston Stack
Installation (Series 5300X and 5324 only)
NOTE: Clean the cylinder sleeves using the
Burnishing Adapter provided with the tool kit. The
Burnishing Adapter is to be mounted on an electric
motor shaft.
1. Insert the Cylinder Sleeve (Brass Retainer End
out) into the Burnishing Adapter and polish the
inside surface using a No. 320 grit emery cloth.
2. Use a wire brush to clean the outside of the
Cylinder Sleeve.
NOTE: Upon inspection, if pitting or scratches still
show on the inside of the Cylinder Sleeve, the
Cylinder Sleeve and the Cylinder Sleeve O-ring
should be replaced.
3. Insert the Cylinder Sleeve into the cylinder bore of
the Pump Body.
4. Lubricate and place a new Cylinder Sleeve O-ring
on top of the Cylinder Sleeve.
5. Place a Brass Retainer on top of the O-ring.
6. Insert the Guide into the Cylinder Sleeve, making
sure the Guide is properly seated on the
Connecting Rod inside the Pump Body.
7. Place the Seal Ring at a 45 degree angle on top of
the Guide; then, using the Seal Ring Seating Tool,
press the Seal Ring into the Cylinder sleeve.
8. Lubricate the O-ring and place it on the Cup
Backing Plate.
9. Install the Cup Backing Plate on top of the Seal
Ring in the piston bore, O-ring end down.
10. Lubricate the Cup and set it on top of the Cup
Backing Plate inside the piston bore.
11. Lubricate the O-ring and install it on the Cup
Spreader.
12. Place the Cup Spreader end opposite O-ring in the
Cup inside the piston bore.
13. Place the Washer on the Piston Cap Screw, insert it
through the Piston Assembly, then tighten it to 130
in. lbs. of torque.
14. Turn the Pump over and repeat Steps 2 through 13.
Plunger Assembly Installation
(Series 5321 and 5322 only)
NOTE: Make sure the Cam Bearing is in the
upstroke position when installing the Cylinder
Sleeves and Piston Assemblies.
1. Place the assembled Guide Retainer Cartridge and
Plunger into the plunger bore of the Pump body,
making sure the Plunger and Connecting Rod seat
together properly inside the Pump Body.
2. Lubricate the O-ring and place it on top of the Guide
Retainer Cartridge.
3. Place the Seal Retainer Cartridge over the Plunger
(beveled side down), and press it by hand into the
Pump Plunger bore.
4. Place a Washer on the Plunger Cap Screw, insert it
through the Plunger and tighten it to 100 to 115 In.
Lbs. of torque.
5. Turn the Pump over and repeat Steps 1 through 4.
Head and Grease Fitting Installation
(All Models)
1. Install the O-ring into the Pump Cylinder head.
2. Place the Pump Body upright in a vise; then, place
the Head on the Pump Body.
3. Secure the head to the Pump Body with the Head
Bolts; then, alternately and evenly (in a criss-cross
pattern) tighten the head Bolts.
4. Turn the Pump over and repeat Steps 1 through 3.
5. To install the Grease Fitting into the Cam Bearing,
place the pump on the arbor press with the Safety
Cover side facing up; then press the Grease Fitting
in with the arbor press ram.
6. Grease the pump according to the Lubrication
Instructions.
7. Install the safety cover.
Symptom Probable Cause(s) Corrective Action(s)
No Flow or Low Flow Pump not primed Refer to Priming in the Operation Section.
Air leaks in suction line Check and reseal inlet fittings.
Blocked or clogged line strainer Inspect strainer and clear any debris from screen.
Undersize suction line or collapsed hose Suction line should be the same diameter as inlet
port of Pump or larger.
Nozzle clogged Clear nozzle or replace.
Unloader or Relief Valve not functioning properly Repair or replace Relief Valve.
Low pressure Debris in Valves Remove debris. See Repair section.
Valves worn Replace Valves. See Repair section.
Unloader or Relief Valve not functioning properly Repair or replace relief valve.
Pump not primed See priming in Operation section.
Pump Leaking Seals worn Replace Seals. See Repair section.
Body cracked Replace Body. See Repair section.
-11-
Troubleshooting
Performance Data
Presssure 100 psi 300 psi 500 psi 700 psi 1000 psi
RPM GPM HP GPM HP GPM HP GPM HP GPM HP
3450 2.2 .4 2.2 .7 2.1 .9 2.1 1.2 2.0 1.5
Pressure (689.4 KPa) 2000 KPa 4000 KPa 5000 KPa (6894 KPa)
RPM I/m w I/m w I/m w I/m w I/m w
3450 8.5 298 8.3 491 7.9 756 7.7 888 7.4 1118
Presssure 100 psi 300 psi 500 psi 700 psi 1000 psi
RPM GPM HP GPM HP GPM HP GPM HP GPM HP
3100 2.3 .4 2.2 .7 2.1 .9 2.1 1.2 2.0 1.5
Pressure (689.4 KPa) 2000 KPa 4000 KPa 5000 KPa (6894 KPa)
RPM I/m w I/m w I/m w I/m w I/m w
3100 8.5 298 8.3 491 8.0 756 7.9 888 7.7 1118
100 psi 300 psi 500 psi 700 psi 1000 psi
RPM GPM HP GPM HP GPM HP GPM HP GPM HP
900 1.1 .2 1.1 .4 1.1 .5 1.1 .6 1.1 .8
1200 1.5 .3 1.5 .5 1.5 .6 1.5 .8 1.4 1.0
1450 1.8 .4 1.8 .6 1.8 .7 1.8 .9 1.8 1.2
1725 2.2 .4 2.1 .7 2.1 .8 2.1 1.1 2.1 1.4
7 BAR 20 BAR 40 BAR 50 BAR 69 BAR
RPM L/min. W L/min. W L/min. W L/min. W L/min. W
900 4.2 165 4.2 261 4.2 399 4.2 461 4.1 575
1200 5.8 224 5.6 357 5.5 536 5.5 603 5.4 739
1450 6.9 269 6.8 399 6.7 601 6.7 700 6.6 888
1725 8.2 321 8.1 459 8.0 692 8.0 815 7.9 1059
50 psi 100 psi 200 psi 300 psi 400 psi 500 psi
Model
RPM GPM HP GPM HP GPM HP GPM HP GPM HP GPM HP
1725 1.56 .12 1.52 .15 1.50 .28 1.47 .35 1.45 .43 1.44 .56
1725 2.22 .21 2.18 .28 2.16 .43 2.12 .57 2.11 .71 2.10 .83
1725 2.56 .25 2.54 .37 2.52 .52 2.50 .68 2.48 .82 2.44 .96
1725 3.02 .37 3.01 .49 3.00 .74 2.98 .92 2.96 1.11 2.94 1.23
5315C
5320C
5325C
5330C
Series 53702
Series 53703
Series 5300C-X
Series 5321C and 5322C
NOTE: Above performance figures based on constant speed
dynamometer tests, pumping water at one foot (approx.) suction lift
with no pulsation damper. Performance will vary with application.
7 BAR 14 BAR 21 BAR 27.5 BAR 34.5 BAR
RPM L/min. W L/min. W L/min. W L/min. W L/min. W
1725 5.8 100 5.7 200 5.6 300 5.5 300 5.5 400
1725 8.3 200 8.2 300 8.0 400 8.0 500 8.0 600
1725 9.6 300 9.5 400 9.5 500 9.4 600 9.2 700
1725 11.4 400 11.4 600 11.3 700 11.2 800 11.1 900
100 psi 200 psi 300 psi 400 psi 500 psi 600 psi 700 psi 800 psi
RPM GPM HP GPM HP GPM HP GPM HP GPM HP GPM HP GPM HP GPM HP
600 .96 .12 .94 .19 .94 .26 .95 .33 .94 .39 .93 .45 .93 .52 .93 .58
900 1.51 .19 1.49 .30 1.48 .41 1.47 .50 1.47 .60 1.46 .69 1.46 .78 1.45 .87
1200 2.00 .28 1.98 .41 1.97 .55 1.96 .67 1.96 .81 1.95 .93 1.94 1.06 1.93 1.16
1450 2.42 .34 2.40 .50 2.38 .67 2.37 .83 2.36 .97 2.35 1.13 2.33 1.27 2.32 1.42
1725 2.90 .40 2.89 .59 2.87 .80 2.85 1.00 2.83 1.19 2.81 1.38 2.80 1.54 2.79 1.69
7 BAR 21 BAR 34.5 BAR 48 BAR 55 BAR
RPM L/min. W L/min. W L/min. W L/min. W L/min. W
900 5.7 200 5.7 300 5.7 500 5.7 600 5.7 700
1200 7.6 200 7.6 500 7.6 600 7.2 800 7.2 900
1450 9.1 300 9.1 500 9.1 800 8.7 1000 8.7 1100
1725 11.0 300 11.0 600 10.6 900 10.6 1200 10.6 1300
Series 5324C
-12-
Models 5315C-X, 5320C-X, 5325C-X and 5330C-X
Piston Stack Parts Kit
Leather Cup Kit No. 3430-0007
Consists of two each of the following parts: No.
2220-0012 Piston Cap Screw (Ref. 6A), No. 2270-
0011 Washer (Ref. 6B), No. 1720-0029 O-ring (Ref.
6C), No. 2150-0002 Leather Cup (Ref. 6D), No.
1720-0039 O-Ring (Ref. 6E), and No. 1440-0008
Seal Ring (Ref. 6F).
Rubber Cup Kit No. 3430-0009
Same as above kit except with No. 2150-0005
Rubber Cups.
Piston Stack and Guide Parts Kits
Leather Cup and Guide Kit No. 3430-0008
Consists of Leather Cup Kit No. 3430-0007 plus two
No. 1440-0004 Piston Guides (Ref. 7).
Rubber Cup and Guide Kit No. 3430-0010
Consists of Rubber Cup Kit No. 3430-0009 plus two
No. 1440-0004 Piston Guides.
Teflon Cup and Guide Kit No. 3430-0046
Consists of Teflon Cup Stack Kit plus 2 Piston
Guides.
Crankshaft Assemblies
Sub-Assemblies include Shaft (Ref. 12 or 15) with
Cam Bearing, Grease Fitting Assembly (Ref. 10),
Set Screws for Hollow Shaft (Ref. 13) and Spline
Key (Ref. 14 or 16).
Complete Assemblies include the Sub-Assembly
plus parts identified by Reference Numbers 24-26.
Sub-Assembly Complete Assembly Pump
Part No. Part No. Model
with 5/8" (I.D.) Hollow Shaft (Ref. 12)
5501-5315 5500-5315 5315C-H
5501-5320 5500-5320 5320C-H
5501-5325 5500-5325 5325C-H
5501-5330 5500-5330 5330C-H
with 5/8" Solid Shaft (Ref. 15)
5001-5315 5000-5315 5315C
5001-5320 5000-5320 5320C
5001-5325 5000-5325 5325C
5001-5330 5000-5330 5330C
NOTE: When ordering parts,
give QUANTITY, PART NUMBER,
DESCRIPTION, and COMPLETE
MODEL NUMBER.
Reference numbers are used
ONLY to identify parts in the
drawing and are NOT to be
used as order numbers.
2 2 2220-0012 Piston Cap Screw
3 2 2270-0011 Washer
4 2 1830-0017 Piston Cup Spreader
5 2 1410-0030 Cup Backing Plate
6 1 Piston Stack Parts Kit (see listinabove)
7 2 1440-0004 Piston Guide
8 1 0502-5300 Connecting Rod
9 1 0608-5300 Safety Cover
10 1 2405-0006 Grease Fitting Assembly
12 1 Crankshaft Assemblies — Hollow Shaft
Models, see listing above
13 2 2230-0017 Set Screw for Hollow Shaft
14 1 1610-0011 Spline Key for Hollow Shaft
15 1 Crankshaft Assemblies — Solid Shaft
Models, see listing above
16 1 1610-0007 Spline Key for Solid Shaft
17 8 2210-0062 Cylinder Head Bolt
18 2 0204-5300C Cylinder Head (Cast Iron)
19 2 1720-0038 O-ring for Cylinder Head
20 1 3430-0209 Ni-Resist Cylinder Sleeve Assembly
Consists of two each of No. 1830-0033
Retainer (Ref. A), No. 1720-0079
O-ring (Ref. V), and No. 3550-0018
Sleeve (Ref. C)
Ref. Qty. Part
No. Req'd. No. Description
Ref. Qty. Part
No. Req'd. No. Description
21 1 set 3430-0197 Set of four No. 3400-0073 Unitized
Valve Assemblies: Consists of four
each: O-ring (Ref. A), Valve Seat (Ref.
B), Valve Poppet (Ref. C), Valve
Spring (Ref. D), Valve Spring Retainer
(Ref. E)
22 1 0108-5300C Body (Cast Iron)
24 1 2130-0007 Bearing Shield
25 2 2008-0001 Main Bearing (Ball Bearing)
26 2 1810-0013 Bearing Retainer Ring (shaft)
27 1 1820-0025 Bearing Retainer Ring (housing)
28 1 1510-0056 Mounting Base
29 1 2820-0040 Torque Arm - for Electric Motor
Mounting
30 1 2820-0042 Torque Arm - for Gas Engine
Mounting
17
18
19
A
B
C
20
A
B
C
D
14 21 E 13
12
16
15
10
6A
6B
6C
6D
6E
6F
2
3
4
5
7
8
6
9
29
30
17
28
22
24 25
26
25
27
-13-
Models 5321C and 5322C
2 2 2220-0039 Socket Head Cap Screw
3 2 2270-0042 Washer
4 2 1830-0056 Retainer
5 2 2150-0027 Seal Assembly: Consists of No.
2150-0049 Seal (Ref. A) and No.
1440-0061 Support Ring (Ref. B)
6 2 1830-0054 Seal Retainer
7 2 1720-0079 O-ring for Seal Retainer
8 2 1440-0037 Guide
9 2 1720-0064 O-ring for Seal Ring
10 2 1440-0010 Seal Ring
11 2 1830-0053 Guide Retainer
12 2 3500-0021 Plunger (steel, Model 5321)
12 2 3500-0036 Plunger (ceramic, Model 5322)
13 1 0502-5300 Connecting Rod (Model 5321)
13 1 0504-5300 Connecting Rod (Model 5322)
14 1 0608-5300 Safety Cover
15 * 2210-0063 Cylinder Head Bolt (8 bolts required
for Model 5321C-H Hollow Shaft
Pump; 4 bolts required for Top
Cylinder Head ONLY on Solid Shaft
Pumps)
15A 4 2210-0064 Extra Long Cylinder Head Bolt for
securing mounting base to Solid
Shaft Models
16 2 0201-5300C Cylinder Head (Cast Iron)
17 2 1720-0038 O-ring for Cylinder Head
18 1 set 3430-0197 Set of four No. 3400-0073 Unitized
Valve Assemblies: Consists of four
each: O-ring (Ref. A), Valve Seat (Ref.
B), Valve Poppet (Ref. C), Valve
Spring (Ref. D), and Valve Spring
Retainer (Ref. E)
Ref. Qty. Part
No. Req'd. No. Description
Ref. Qty. Part
No. Req'd. No. Description
19 1 0108-5300C Body (Cast Iron)
21 1 2405-0006 Grease Fitting
22 1 Hollow Shaft Sub-Assembly (see
listing above)
24 2 2230-0017 Set Screws for Hollow Shaft
25 1 1610-0011 Spline Key for Hollow Shaft
26 1 Solid Shaft Sub-Assembly (see listing
above)
27 1 1610-0007 Spline Key for Solid Shaft
28 1 2130-0007 Shield
29 2 2008-0001 Main Bearing
30 2 1810-0013 Retaining Ring (shaft)
31 1 1820-0025 Retaining Ring (housing)
32 1 1510-0041 Mounting Base for Solid Shaft Models
33 1 3420-0030 Torque Arm Kit for Hollow Shaft
Models - Consists of No. 2820-0035
Torque Arm, No. 1450-0003 Bumper
and two No. 2210-0064 Bolts
34 2 2270-0097 Washer (Model 5322 only)
Plunger Parts Kits
Plunger Stack Parts Kit No. 3430-0144 (Model 5321)
Consists of two each of the following parts: No. 1440-0010 Seal Rings,
No. 1440-0037 Guides, No. 1720-0064 O-rings, No. 1720-0079 O-rings,
No. 2150-0027 Seal Assemblies, No. 2220-0039 Socket Head Cap
Screws, and No. 2270-0042 Washers.
Plunger Parts Kit No. 3430-0145 (Model 5321)
Consists of one No. 3430-0144 Plunger Stack Parts Kit and two No.
3500-0021 Plungers.
Plunger Stack Parts Kit No. 3430-0291 (Model 5322)
Consists of two each of the following parts: No. 1440-0010 Seal Rings,
No. 1440-0037 Guides, No. 1720-0064 O-rings, No. 1720-0079 O-rings,
No. 2150-0027 Seal Assemblies, No. 2220-0039 Socket Head Cap
Screws, and No. 2270-0042 Washers.
Plunger Parts Kit No. 3430-0292 (Model 5322)
Consists of one No. 3430-0291 Plunger Stack Parts Kit and two No.
3500-0036 Plungers.
Crankshaft Assemblies
Solid Shaft Sub-Assembly No. 5001-5321
Consists of one each of the following parts: No. 0500-5321 Crankshaft,
No. 1600-0014 Crankpin Retainer, No. 2007-0029 Cam Bearing, No.
2405-0006 Grease Fitting Assembly, and No. 1610-0007 Key.
Hollow Shaft Sub-Assembly No. 5501-5321
Consists of one No. 0550-5321 Crankshaft, one No. 2007-0029 Cam
Bearing, one No. 2405-0006 Grease Fitting Assembly, one No. 1610-
0011 Key, and two No. 2230-0017 Set Screws.
Hollow Shaft Assembly No. 5500-5321
Consists of one No. 5501-5321 Crankshaft Sub-Assembly, two No.
1810-0013 Retaining Rings, two No. 2008-0001 Main Bearings, and
one No. 2130-0007 Bearing Shield.
2
3
4
A
B
6
7
8
9
10
11
5
15
16
17
A
B
C
D
E
18 24
25
22
21
19
28
27
26
29
30
29
31
33
15A
32
12
34
13
Spec Pumps 53702 and 53703
NOTE: When ordering parts,
give QUANTITY, PART NUMBER,
DESCRIPTION, and COMPLETE
MODEL NUMBER.
Reference numbers are used
ONLY to identify parts in the
drawing and are NOT to be
used as order numbers.
Crankshaft Assemblies
Spec Pump No. 53702
Hollow Shaft Sub-Assembly No. 5501-5318
Consists of one No. 0550-5318 Crankshaft, one No.
2007-0029 Cam Bearing, one No. 2405-0006
Grease Fitting Assembly, one No. 1610-0011 Key,
two No. 2230-0017 Set Screws.
Hollow Shaft Assembly No. 5500-5318
Consists of one No. 5501-5318 Crankshaft Sub-
Assembly, two No. 1810-0013 Retaining Rings, two
No. 2008-0001 Main Bearings, one No. 2130-0007
Bearing Shield.
Spec Pump No. 53703
Hollow Shaft Sub-Assembly No. 5501-5320
Consists of one No. 0551-5320 Crankshaft, one No.
2007-0029 Cam Bearing, one No. 2405-0006
Grease Fitting Assembly, one No. 1610-0011 Key,
two No. 2230-0017 Set Screws.
Hollow Shaft Assembly No. 5500-5320
Consists of one No. 5501-5320 Crankshaft Sub-
Assembly, two No. 1810-0013 Retaining Rings, two
No. 2008-0001 Main Bearings, one No. 2130-0007
Bearing Shield.
Plunger Parts Kits
Plunger Stack Parts Kit No. 3430-0291
Consists of two each of the following parts:
No. 1440-0010-6 Seal Rings, No. 1440-0037
Guides, No. 1720-0064 O-rings, No. 1720-
0079 O-rings, No. 2150-0027 Seal Assemblies,
No. 2220-0039 Socket Head Cap Screws,
No. 2270-0042 Washers, and No. 2270-0051
Washers.
Plunger Parts Kit No. 3430-0292
Consists of one No. 3430-0291 Plunger Stack
Parts Kit and two No. 3500-0036 Plungers.
Ref. Qty. Part
No. Req'd. No. Description
Ref. Qty. Part
No. Req'd. No. Description
18 1 Set 3430-0197 Set of four No. 3400-0073
Unitized Valve Assemblies:
Consists of four each: O-ring (Ref. A),
Valve Seat (Ref. B), Valve Poppet
(Ref. C), Valve Spring (Ref. D), Valve
Spring Retainer (Ref. E)
19 1 0108-5300C Body (Cast Iron)
21 1 2405-0006 Grease Fitting
22 1 **** Hollow Shaft Sub-Assembly (See
listing above for description)
24 2 2230-0017 Set Screws for Hollow Shaft
25 1 1610-0011 Spline Key for Hollow Shaft
28 1 2130-0007 Shield
29 2 2008-0001 Main Bearing
30 2 1810-0013 Retaining Ring (shaft)
31 1 1820-0025 Retaining Ring (housing)
33 1 3420-0030 Torque Arm Kit: Includes (1) No.
2820-0035 Torque Arm, (1) No.
1450-0003 Bumper and (2) No.
2210-0064 Bolts.
34 2 2270-0097 Washer
2 2 2220-0039 Socket Head Cap Screw
3 2 2270-0042 Washer
4 2 1830-0056 Retainer
5 2 2150-0027 Seal Assembly: Consists of one No.
2150-0049 Seal (Ref. A) and one
No. 1440-0061 Support Ring (Ref.B)
6 2 1830-0054 Seal Retainer
7 2 1720-0079 O-ring for Seal Retainer
8 2 1440-0037 Guide
9 2 1720-0064 O-ring for Seal Ring
10 2 1440-0010 Seal Ring
11 2 1830-0053 Guide Retainer
12 2 3500-0036 Plunger
13 1 0504-5300 Connecting Rod
14 1 0608-5300 Safety Cover
15 8 2210-0063 Cylinder Head Bolt
15A 2 2210-0064 Extra Long Cylinder Head Bolt for
torque arm
16 2 0201-5300C Cylinder Head (Cast Iron)
17 2 1720-0038 O-ring for Cylinder Head
2
3
4
A
B
6
7
8
9
10
11
5
14
15
16
12
34
13
17
18
A
B
C
D
E
24 25
19
21
22 28 29
30
29
31
33
15A
-14-
-15-
Models 5324C and 5324C-H
Ref. Qty. Part
No. Req'd. No. Description
15 1 set 3430-0197 Set of four No. 3400-0073 Unitized
Valve Assemblies: Consists of four
each: O-ring (Ref. A), Valve Seat
(Ref. B), Valve Poppet (Ref. C),
Valve Spring (Ref. D), Valve Spring
Retainer (Ref. E)
16 1 0108-5300C Body (Cast Iron)
18 1 2405-0006 Grease Fitting
19 1 Hollow Shaft Sub-Assembly (see
listing above)
21 2 2230-0017 Set Screw for Hollow Shaft Pump
22 1 1610-0011 Key for Hollow Shaft Pump
23 1 Solid Shaft Sub-Assembly (see listing
above)
24 1 1610-0007 Key for Solid Shaft Pump
25 1 2130-0007 Shield
26 2 2008-0001 Bearing
27 2 1810-0013 Retaining Ring (shaft)
28 1 1820-0025 Retaining Ring (housing)
29 1 1510-0041 Mounting Base for Solid Shaft Pump
30 1 3420-0030 Torque Arm Kit for Hollow Shaft
Pump: Consists of (1) No. 2820-0035
Torque Arm, (1) No. 1450-0003
Bumper and (2)No. 2210-0064 Bolts
2 2 2220-0012 Piston Cap Screw
3 2 2270-0011 Washer
4 2 2150-0047 Cup
5 2 1830-0092 Cup Holder
6 2 1720-0029 O-Ring
7 2 1440-0059 Seal Ring
8 2 1440-0060 Guide
9 1 0500-5324 Connecting Rod
10 1 0608-5300 Safety Cover
11 * 2210-0063 Cylinder Head Bolt (8 required for
Hollow Shaft Pump; 4 required for
top cylinder head ONLY on Solid
Shaft Pump)
11A 4 2210-0064 Extra Long Cylinder Head Bolt for
securing mounting base to Solid
Shaft Pump
12 2 0201-5300C Cylinder Head (Cast-Iron)
13 2 1720-0038 O-Ring
14 1 3430-0210 Ni-Resist Cylinder Sleeve Assembly:
Consists of two each of No.
1830-0033 Retainer (Ref. A), No.
1720-0079 O-ring (Ref. B), and No.
3550-0028 Sleeve (Ref. C)
Ref. Qty. Part
No. Req'd. No. Description
Piston Parts Kit
Piston Stack Parts Kit No. 3430-0191
Consists of two each of the following parts: No.
2220-0012 Cap Screw (Ref. 2), No. 2270-0011
Washer (Ref. 3), No. 2150-0047 Cup (Ref. 4), No.
1720-0029 O-ring (Ref. 6), No. 1440-0059 Seal Ring
(Ref. 7) and No. 1440-0060 Guide (Ref. 8).
Crankshaft Assembly Kits
Model 5324C
Solid Shaft Sub-Assembly No. 5001-5321
Consists of one each of the following parts: No.
0500-5321 Crankshaft, No. 1600-0014 Crankpin
Retainer, No. 2007-0029 Cam Bearing, No. 2405-
0006 Grease Fitting Assembly, No. 1610-0007 Key.
Model 5324C-H
Hollow Shaft Sub-Assembly No. 5501-5321
Consists of one No. 0550-5321 Crankshaft, one No.
1600-0014 Crankpin Retainer, one No. 2007-0029
Cam Bearing, one No. 2405-0006 Grease Fitting
Assembly, one No. 1610-0011 Key, two No. 2230-
0017 Set Screws.
Hollow Shaft Assembly No. 5500-5321
Consists of one No. 5501-5321 Crankshaft Sub-
Assembly, two No. 1810-0013 Retaining Rings, two
No. 2008-0001 Main Bearings, one No. 2130-0007
Bearing Shield.
11
12
2 13
3
4
5
6
7
8
9
A
B
C
D
15 E
16
A
B
C
14
18
19
21
22
24
23
25
27
26
26
28
10
11A
29
30
-16-
Accessory
HYPRO SERIES
Liquid Injector Heads
3396-0006
3396-0014
Model 3396-0014
for Hypro Series 5300 cast iron pumps with suffix "X"
Model 3396-0006
for Hypro Series 5321 and 5324 cast iron pumps
SPECIFICATIONS
Cylinder Head — Cast iron with special flow
Inlet Port — 1/8" NPT (F) can be positioned to face any
direction.
Brass Valve Stem — Needle-type metering, for accurate
mixing of injected solution and liquid being pumped.
Unitized Valve Assembly — Stainless steel valve
spring, ball and valve seat. Nylon spring retainer.
Control Knob — Calibrated with 9 steps in a 360o turn.
Can be rotated up to three times.
Maximum Temperature — 140o Fahrenheit (60o C)
Net Weight — Model 3396-0014: 1 lb. 8 oz. (594.8 g.)
Model 3396-0006: 1 lb. 12 oz. (793.2 g.)
The Hypro Series 3396 Liquid Injector Head mounts directly on the pump,
replacing the regular cylinder head. It feeds solution directly into the pump,
mixing it with the regular pump flow. No internal pump parts are removed or
disassembled to install the injector.
Amount of solution injected is regulated by a needle valve and adjusted by a
calibrated control knob. Positive seating ball-type check valve prevents back
flow of liquid from the pump into the injector. This allows application of soap,
detergent and other solutions through the injector, then by closing the injector
supply, followed by a clear water rinse through the pump.
The 1/8" NPT (F) inlet port can be positioned to face any direction. A built-in
flow regulator channel in the cylinder head compensates for various inches of
mercury (127 mm/Hg), up to a maximum incoming pressure of 20 psi (137.8
kPa). NOTE: If incoming pressure is higher, a pressure regulator must be
used.
Series 5300 Pump
with Model 3396-0014
Liquid Injector Head
Series 5321 Pump
with Model 3396-0006
Liquid Injector Head
Add suffix letter "D" to pump model number
HYPRO PISTON PUMP
MODEL 5320
(2 GPM)
MODEL 5330
(3 GPM)
MODEL 5321
(2.2 GPM)
MODEL 5324
(2.9 GPM)
Pressure at Pump Outlet 500 psi 500 psi 1000 psi 800 psi
Pump Inlet Conditions 5'' Hg 10 psi 20 psi 5'' Hg 10 psi 20 psi 5'' Hg 10 psi 20 psi 5'' Hg 10 psi 20 psi
Maximum Water Injected
Per Minute 9 oz. 6 oz. 5 oz. 10 oz. 9 oz. 8 oz. 11-1/2 oz. 10-1/2 oz. 8 oz. 17 oz. 15-1/2 oz. 13 oz.
HYPRO PISTON PUMP
MODEL 5320
(7.57 L/min.)
MODEL 5330
(11.4 L/min.)
MODEL 5321
(8.3 L/min.)
MODEL 5324
(11 L/min.)
Pressure at Pump Outlet 3.45 MPa 3.45 MPa 6.9 MPa 5.52 MPa
Pump Inlet Conditions 127 mm/ Hg 68.9 kPa 137.8 kPa 127 mm/ Hg 68.9 kPa 137.8 kPa 127 mm/ Hg 68.9 kPa 137.8 kPa 127 mm/ Hg 68.9 kPa 137.8 kPa
Maximum Water Injected
Per Minute 266.4 ml 177.6 ml 148 ml 266.4 ml 177.6 ml 148 ml 266.4 ml 177.6 ml 148 ml 266.4 ml 177.6 ml. 148 ml
-17-
Liquid injector cylinder head MUST
be installed with the flow regulator
channel over the inlet valve of the
pump. "Inlet Side” is cast on the
cylinder head of injector for ease in
identification.
TO ADJUST THE POSITION OF THE INLET PORT
To change the position of the liquid injector inlet port, loosen the retainer nut (Ref.
5), and rotate injector body (Ref. 4) until the opening is in the desired position. It is
important that the retainer nut be fully tightened to properly compress the o-ring
seal (Ref. 3) against the valve assembly (Ref. 2)
OPERATION
Before using the injector, make sure the retainer nut is tightened securely. NOTE:
The “Inlet Port” on the body indicates the position of the dial setting (closed position
is zero). The larger the number, the more flow is allowed. DO NOT rotate the
control knob more than three complete turns.
MAINTENANCE
If opening around needle valve stem becomes clogged, clean the valve stem and
passage way with warm soapy water. Rotate the control knob assembly counterclockwise
(which includes the control knob and needle valve stem) until it can be
lifted out of the body. Inspect the valve stem o-ring and replace if necessary.
Install the control knob assembly by pushing down firmly on the knob and turning
clockwise until it is in the closed position. Set the injector to the desired setting.
Model No. 3396-0014, 3396-0006 Liquid Injector Heads
Ref. Quantity Part
No. Required Number Description
1 1 0257-5300C Cylinder Head for Model 3396-0014 (cast iron)
1 1 0254-5300C Cylinder Head for Model 3396-0006 (cast iron)
2 1 3400-0098 Unitized Valve Assembly
3 1 1720-0029 O-ring
4 1 3200-0027 Body
5 1 3240-0006 Retainer Nut
6 1 1720-0033 O-ring
7 1 3220-0016 Needle Valve Stem
8 1 2802-0002 Calibrated Adjustment Control Knob
DIMENSIONS INSTALLATION: IMPORTANT
PARTS LIST
1/8-27 NPT
X
Y
Flow
Regulator
Channel
O-ring
Groove
A
B
C
D
8
7
6
5
4
3
2
1
X=3-13/16'' Y=5-5/16''
X=96.8 mm Y=135 mm
X=3-3/16'' Y=5-11/16''
X=106.4 mm Y=144.5 mm
-18-
NOTES
-19-
NOTES
Limited Warranty on Hypro Pumps and Other Hypro Products
Printed in the USA
2006 Hypro
Hypro warrants to the original purchaser of its products (the “Purchaser”) that such products will be free from defects
in material and workmanship under normal use for the period of one (1) year for all products except: oil crankcase
plunger pumps will be free from defects in material and workmanship under normal use for the period of five (5)
years, and accessories will be free from defects in material and workmanship under normal use for the period of
ninety (90) days. In addition, Hypro warrants to the purchaser all forged brass pump manifolds will be free from
defects in material and workmanship under normal use and from damage resulting from environmental conditions for
the life of the pump.
“Normal use” does not include use in excess of recommended maximum speeds, pressures, vacuums and temperatures,
or use requiring handling of fluids not compatible with component materials, as noted in Hypro product catalogs,
technical literature, and instructions. This warranty does not cover freight damage, freezing damage, normal
wear and tear, or damage caused by misapplication, fault, negligence, alterations, or repair that affects the performance
or reliability of the product.
THIS WARRANTY IS EXCLUSIVE. HYPRO MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Hypro’s obligation under this warranty is, at Hypro’s option, to either repair or replace the product upon return of the
entire product to the Hypro factory in accordance with the return procedures set forth below. THIS IS THE EXCLUSIVE
REMEDY FOR ANY BREACH OF WARRANTY.
IN NO EVENT SHALL HYPRO BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY
KIND, WHETHER FOR BREACH OF ANY WARRANTY, FOR NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY,
OR OTHERWISE.
Return Procedures
All pumps or products must be flushed of any chemical (ref. OSHA Section 0910.1200 (d)(e)(f)(g)(h)) and
hazardous chemicals must be labeled before being shipped* to Hypro for service or warranty consideration.
Hypro reserves the right to request a Material Safet

Hypro Pump: 5321C-D Twin Plunger Pump With Chemical Injector Head For Pressure Washing [5321C-D] for only $288.00
Steambrite's price on the Hypro Pumps - Hypro Pump: 5321C-D Twin Plunger Pump With Chemical Injector Head For Pressure Washing [5321C-D] is $288.00.
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This product was added to our store on Friday 26 June, 2009.

Steambrite will ship the Hypro Pump: 5321C-D Twin Plunger Pump With Chemical Injector Head For Pressure Washing [5321C-D] by either Fedex or Freight Quote, and are normally shipped within 1-10 working days. Please remember it takes 6-8 working days for you to receive your order after shipment, and ground shipping times are not guaranteed. Next day and two day service are available. Click here for our full shipping policy. Specifications subject to change without notice.