Graco Heat Pump 236752 User Manual

Instructions - Parts List  
308391J  
EN  
Power-Star  
Used to pump high volumes of petroleum and synthetic based oils. For professional use  
only.  
Model No. 236754, Series A  
1:1 Ration Universal Pump and Reciprocator  
Model No. 236752, Series A  
Reciprocator Only  
1500 psi (10 MPa, 103 bar) Maximum Hydraulic Input Pressure  
1500 psi (10 MPa, 103 bar) Maximum Fluid Outlet Pressure  
Important Safety Instructions  
Read all warnings and instructions in this  
manual. Save these instructions.  
This pump is designed to be used only in pumping  
non-corrosive and non-abrasive oils and lubricants.  
Any other use of the system can cause unsafe  
operating conditions and result in components  
rupture, fire, or explosion which can cause serious  
injury, including fluid injection.  
 
Warnings  
Warnings  
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-  
tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When  
these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific  
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where  
applicable.  
WARNING  
FIRE AND EXPLOSION HAZARD  
When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be  
aware that flammable fumes can ignite or explode. To help prevent fire and explosion:  
Use equipment only in well ventilated area.  
Eliminate all ignition sources, such as cigarettes and portable electric lamps.  
Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.  
Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.  
Ground all equipment in the work area.  
Use only grounded hoses.  
Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment  
until you identify and correct the problem.  
Keep a working fire extinguisher in the work area.  
SKIN INJECTION HAZARD  
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This  
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical  
treatment.  
Do not point dispensing device at anyone or at any part of the body.  
Do not put your hand over the fluid outlet.  
Do not stop or deflect leaks with your hand, body, glove, or rag.  
Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or  
servicing equipment.  
Tighten all fluid connections before operating the equipment.  
Check hoses and couplings daily. Replace worn or damaged parts immediately.  
308391J  
3
 
 
Warnings  
WARNING  
EQUIPMENT MISUSE HAZARD  
Misuse can cause death or serious injury.  
Do not operate the unit when fatigued or under the influence of drugs or alcohol.  
Do not exceed the maximum working pressure or temperature rating of the lowest rated system com-  
ponent. See Technical Data in all equipment manuals.  
Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all  
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information  
about your material, request MSDS from distributor or retailer.  
Do not leave the work area while equipment is energized or under pressure.  
Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.  
Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-  
facturer’s replacement parts only.  
Do not alter or modify equipment. Alterations or modifications may void agency approvals and create  
safety hazards.  
Make sure all equipment is rated and approved for the environment in which you are using it.  
Use equipment only for its intended purpose. Call your distributor for information.  
Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.  
Do not kink or over bend hoses or use hoses to pull equipment.  
Keep children and animals away from work area.  
Comply with all applicable safety regulations.  
TOXIC FLUID OR FUMES HAZARD  
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or  
swallowed.  
Read MSDSs to know the specific hazards of the fluids you are using.  
Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.  
Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.  
MOVING PARTS HAZARD  
Moving parts can pinch, cut or amputate fingers and other body parts.  
Keep clear of moving parts.  
Do not operate equipment with protective guards or covers removed.  
Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,  
follow the Pressure Relief Procedure and disconnect all power sources.  
PERSONAL PROTECTIVE EQUIPMENT  
Wear appropriate protective equipment when in the work area to help prevent serious injury, including  
eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is  
not limited to:  
Protective eyewear, and hearing protection.  
Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer  
4
308391J  
 
Installation  
Installation  
Maximum Working Pressure of Accessories  
To reduce the risk of serious injury including fluid  
injection and splashing in the eyes or on the skin,  
which may be caused by component ruptures, all  
accessories added to the reciprocator power supply  
side of the pump fluid outlet side must have at least a  
1500 psi (10 MPa, 103 bar) maximum working  
pressure.  
The equipment must be grounded to reduce the risk  
of static sparking and electric shock. Electric or static  
sparking can cause fumes to ignite or explode.  
Improper grounding can cause electric shock.  
Grounding provides an escape wire for the electric  
current.  
Pump: Use a ground wire and clamp. Remove the  
ground screw (Z) and insert through the eye of the ring  
terminal at end of ground wire (Y). Fasten the ground  
screw back onto the pump and tighten securely. Con-  
nect the other end of the ground wire to a true earth  
ground. (FIG. 1)  
Pump Accessories  
Suction Tube Kit: A suction tube kit is available for  
siphoning from 55 gallon containers.  
Intake Tube: To install, apply PTFE tape to the female  
threads at the top of the tube (Q). Screw the tube tightly  
into the intake housing of the stubby pump.  
Low-Level Cutoff Valve: To install, screw the low-level  
cutoff valve into the bottom of the pump intake tube or  
the suction tube. This valve closes the pump intake  
when the fluid level is low, causing the pump to stall to  
avoid running all day.  
Z
Y
NOTICE  
A pump outlet drain valve is required in the system.  
This valve helps relieve pressure in the  
FIG. 1  
displacement pump and hose when shutting down  
the system and in case of a clogged outlet hose.  
Install the valve hose close the pump outlet.  
Hydraulic and fluid hoses: Use only electrically con-  
ductive hoses.  
Hydraulic power supply: Follow manufacturer’s recom-  
mendations.  
Pump Outlet Drain Valve: Install a drain valve (D) close  
to the pump fluid outlet assist in relieving fluid pressure  
in the pump, hose, and dispense valve when the pump  
is shut off.  
Any pails used when flushing: Use only metal,  
grounded pails when flushing. Make firm metal-to-metal  
contact between the metal part of the dispense valve  
and the pail. Use the lowest possible pressure.  
Thermal Relief Kit: Install a Thermal Relief Kit (T) at the  
pump fluid outlet.  
Grounding  
308391J  
5
 
       
Installation  
N
E
G
J
A
K
L
M
F
R
H
B
C
D
S
T
P
FIG. 2: Typical Installation  
Key:  
A
B
C
D
E
F
G
H
J
K
L
M
N
Hydraulic Control (See manual 308395)  
Porous Plug (weep tube optional)  
Fluid Dispense Outlet  
Drain Valve (required)  
Hydraulic Return Line  
Hydraulic Outlet, 1 1/4 npt  
Return Line Shutoff Valve  
Hydraulic Inlet, 3/4 npt  
Hydraulic Supply Line Shutoff Valve  
Pressure Gauge  
Pressure Reducing Valve  
Flow Control Valve  
Hydraulic Supply Line (Use only Graco Hydraulic power  
supply)  
Hydraulic Power Supply  
To reduce the risk of damaging the hydraulic power sup-  
ply, blow out all hydraulic lines with air, flush thoroughly  
with solvent, and then blow out with air again before  
connecting the lines to the motor.  
Always plug the hydraulic inlets, outlets, and lines when  
disconnecting them to avoid introducing dirt and other  
contaminants to the system.  
P
R
S
T
Dispensed Material Supply Suction Hose Kit  
Ground Wire (required)  
Wall Mounting Bracket (See manual 308394)  
Thermal Relief Kit (required)  
Carefully follow the manufacturers recommendations on  
reservoir and filter cleaning, and periodic changes of the  
hydraulic fluid.  
NOTE: The installation shown in FIG. 2 is only a guide.  
For assistance in designing a system to suit your needs.  
Contact your Graco representative.  
Mount the pump to suit the type of installation planned.  
6
308391J  
 
   
Installation  
Pump Isolation: The hydraulic fluid control has ball  
Hydraulic Components  
valves on the supply and return sides of the manifold.  
The ball valves isolate the hydraulic fluid control and  
pump for servicing without stopping the hydraulic power  
supply.  
Always turn off the hydraulic supply side valve (K)  
first to avoid possible serious injury or component  
damage. See the Typical Installation on page 6.  
Drain Line: Remove the plug (24) from the pump  
adapter, and install a 1/8 inch diameter weep tube, end-  
ing in a waste container. Monitor the weepage of  
hydraulic fluid. If it seems excessive or increases sud-  
denly, the reciprocator or pump throat seals may need to  
be changed. (FIG. 3)  
24  
FIG. 3  
Hydraulic Fluid Control: The hydraulic fluid control pro-  
vides pressure regulator, and pump isolation. (FIG. 2)  
Pressure Regulation: The hydraulic fluid control reduces  
the hydraulic oil pressure to the operating pressure  
required for the application.  
Flow Regulation: The hydraulic fluid control limits the  
maximum amount of oil flow to the motor to keep the  
hydraulic motor within the cycle rate limit. This prevents  
pump runaway. The limit on the Power-Star is 66 cpm.  
308391J  
7
 
 
Operation  
Operation  
Pressure Relief Procedure  
Before Starting the Pump  
Follow the Pressure Relief Procedure whenever  
you see this symbol.  
Recommended Hydraulic Oil  
Use a Graco-approved Hydraulic Oil or a premium, ISO  
grade 46 petroleum-based hydraulic oil containing rust  
and oxidation inhibitors and anti-wear agents.  
This equipment stays pressurized until pressure is  
manually relieved. To help prevent serious injury from  
pressurized fluid, such as skin injection, splashing  
fluid and moving parts, follow the Pressure Relief  
Procedure when you stop spraying and before  
cleaning, checking, or servicing the equipment.  
Before using any other type of oil in this motor contact  
your Graco distributor. Unauthorized use of lesser grad  
oil or substitutes may void the warranty.  
1. Close the supply line shutoff valve, and then the  
return line shutoff valve.  
1. Check the hydraulic fluid level in the hydraulic power  
supply before each use, and add fluid as necessary  
to fill the lines.  
2. Open the dispensing valve to relieve the pressure.  
2. Flush the pump before using it for the first time to  
remove the light oil that was left in after factory test-  
ing to protect the pump from corrosion. Be sure the  
solvent used is compatible with the fluid to be  
pumped and the pump’s wetted parts. See Techni-  
cal Data, page 18. Flush until clean solvent comes  
from the outlet hose.  
3. Place a container under the drain valve to catch any  
drainage. Open the pump outlet drain valve.  
4. Leave the drain valve open until you are ready to  
dispense again.  
NOTE: If you suspect that the dispensing valve, exten-  
sion, or grease fitting coupler is clogged, or that the  
pressure has not been fully relieved after following the  
steps above, VERY SLOWLY loosen the coupler or  
hose end coupling and relieve pressure gradually, then  
loosen completely and clear the clog.  
To Start the Pump  
1. Turn on the hydraulic power supply.  
2. Open the return line shutoff valve (H) first, and  
slowly open the hydraulic supply line shutoff valve  
3. Adjust the hydraulic inlet pressure from 500 to 1500  
psi (3.5 to 10.3 MPa, 35 to 103 bar) with the regula-  
tor control adjustment (M) on the hydraulic fluid con-  
trol (A). Increasing the inlet pressure increases the  
outlet pressure. Decreasing the inlet pressure  
decreases the outlet pressure.  
4. Always use the lowest pressure possible to obtain  
the desired results. This reduces pump wear.  
8
308391J  
 
       
Operation  
5. Never allow a pump to run dry of the fluid being  
pumped. A dry pump quickly speeds up and can  
damage itself. If it speeds up, shut off the power  
supply to the reciprocator immediately. Refill the  
supply container and prime the pump to eliminate  
air.  
NOTE: To prevent the pump from running dry, use a  
low-level cutoff valve.  
Shutdown and Care  
At the end of the work shift or when the pump is unat-  
tended, always relieve the pressure, see Pressure Relief  
Procedure on page 8.  
Emergency Stop Procedure  
Close the supply line shutoff valve marked STOP.  
308391J  
9
 
   
Troubleshooting  
Troubleshooting  
1. Follow Pressure Relief Procedure, page 8, before  
checking or repairing gun.  
2. Check all possible problems and causes before dis-  
assembling gun.  
Problem  
Cause  
Solution  
Closed dispense valve  
Pressure too low  
Pump only runs with valve open.  
Increase supply pressure using the  
pressure adjusting valve.  
Check hydraulic power supply.  
Adjust to a maximum of 12 gpm  
(45.4 lpm) flow  
Insufficient hydraulic fluid supply  
Pump will not run  
Clogged fluid outlet line, intake  
valve, dispense valve, suction line  
Check; clear obstructions.  
Press reciprocator reset button (39).  
Pump should start immediately. See  
Parts Drawing on page 16.  
Motor stalled  
Reciprocator damaged  
Repair. See pages 11 through 15.  
Check and repair. See Page 11  
Pump piston and/or intake valve  
worn  
Pump speeds up or runs erratically  
Refill and reprime. Do not allow  
pump to run dry. Monitor closely or  
use a low-level cutoff valve.  
Empty supply container  
Pump piston and/or intake valve  
worn  
Check and repair. See Page 11.  
Refill fluid supply container.  
Insufficient material fluid supply  
Pressure too low  
Pump runs, but output low on up  
and/or down strokes  
Increase supply pressure using the  
pressure adjustment on the control.  
Clogged fluid outlet line, intake  
valve, dispense valve, suction line  
Check; clear obstructions.  
Repair. See page 11  
Excessive weepage from porous  
plug (B)  
Worn throat seals  
Hydraulic oil leaks from seal nuts in Seal nuts (19) are loose, worn, or  
Tighten the seal nuts. If leaking per-  
sists, change the seal nuts.  
the upper housing or cap (36, 43)  
damaged  
Pump runs slowly with dispense  
valve closed  
If system is OK, rebuild the pump.  
Use kits 220457 and 236862.  
Pump/dispense line leakage  
10  
308391J  
 
 
Repair  
Repair  
Refer to Parts Drawing on page 15 unless otherwise  
3. Place the hydraulic motor horizontally in a bench  
vise at the pump adapter (42) and bottom cylinder  
cap (43).  
specified.  
4. Remove the displacement pump with a strap  
wrench.  
5. Remove the cap screws (25) and the mounting plate  
(46).  
NOTE:  
Spool valve Repair Kit 220457 is available to  
replace the gaskets (29), spring retaining plugs (31),  
springs (21), spool (38), trip rod (33) and piston stop  
(37). The spool, plugs, and springs must be  
replaced as a group.  
6. Remove the hydraulic motor from the vise.  
7. Place the piston (110) flats in the vise.  
8. Loosen, but do not remove the piston rod (44) with a  
wrench.  
Clean all parts as you disassemble them, and  
inspect for wear or damage. Replace parts as nec-  
9. Remove the piston (110) flats from the vise.  
®
essary. Use Loctite TL-242 thread sealant, or  
10. Place the motor vertically in the vise at the pump  
adapter (42) and the bottom cylinder cap (43).  
equivalent, when thread sealant is specified.  
Pump Repair Kit 236862 is available to replace the  
gasket (29), o-rings (11, 12, 105 and 108) seals  
(17), packing (107), and piston rings (15).  
11. Remove the piston (110), ball (103), and seal (107).  
NOTICE  
To prevent damage to the spool (38) and the upper  
housing (36), remove the detent parts (31, 21, 29, 30,  
and 7) before removing the end cap (40).  
Disassembly  
Refer to Parts Drawing on page 15 unless otherwise  
specified.  
NOTE: The socket screw (9), cap screws (22), and  
®
retainer (32) are fastened with Loctite TL-242. Heat  
may be used sparingly to soften the adhesive during dis-  
assembly.  
To avoid serious injury, do not move this unit without the  
use of lifting equipment. Keep the hoist attached for  
steps 1 through 15.  
12. Remove one detent assembly retaining plug (31),  
spring (21), gasket (29), ball guide (30), and ball (7).  
If the ball or other parts stick in the upper housing  
(36), use a magnet to extract the parts. Do not allow  
the parts to fall into the motor. Repeat the procedure  
for the other detent assembly.  
1. Relieve the pressure (page 8), and stop the pump at  
the bottom of its stroke.  
NOTICE  
Avoid getting dust or dirt in the motor during repair.  
Cleanliness is essential when repairing a hydraulic  
motor.  
13. Unscrew the top and bottom flare nuts on the  
hydraulic tube (49), and remove the tube. Allow the  
oil to drain from the motor into a pan.  
14. Remove the socket screws (9), and remove the end  
cap (40).  
2. Disconnect the displacement pump hoses. Discon-  
nect the hydraulic hoses and plug all hydraulic con-  
nections and lines to prevent contamination.  
15. Remove the bolts (23), but do not remove the rods  
(47).  
308391J  
11  
 
     
Repair  
tom cylinder cap (43). Ensure all fluid ports are fac-  
ing the same direction.  
NOTICE  
With the bolts removed, the assembly may separate  
at the joints between the cylinder (35) and the upper  
housing (36) and bottom cylinder cap (43),  
2. Install the piston rod (44) into the pump adapter (42)  
and the bottom cylinder cap (43). Lubricate the pis-  
ton rings (15) and install the piston rod (44) with the  
openings on the rings opposed 180°.  
16. Remove the stop plug (39) from the upper housing  
(36). Pull the upper housing about 3 inches off the  
cylinder (35). Shim the housing with 3/4 in. flat stock  
to keep an opening. The cylinder can stay in the  
lower housing (43).  
3. Only perform steps 4 and 5 if steps 23 and 24 of  
Disassembly were performed.  
4. Install the compression spring (18) inside the piston  
rod. Install the trip rod nut (10) and piston stop (37)  
on the trip rod (33).  
17. Hold the trip rod (33) steady with a trip rod pliers  
(P/N 207579) on the rod, and remove the top hex  
nut (16) from the trip rod.  
5. Install the trip rod (33) in the piston rod (44). Apply  
thread sealant to the retainer (32). With the piston  
flat in a vise, tighten the retainer until it is flush or  
below the piston surface. This is important to pre-  
vent the retainer from backing out during operation  
and damaging the motor.  
18. Remove the upper housing (36). Remove the valve  
spool (38) from the upper housing (36). Save the  
spring collars (41), the springs (34), and the parts  
remaining inside the upper housing.  
19. Inspect the bore in the upper housing (36) and the  
outside diameter of the valve spool (38) for wear.  
Replace parts if damaged. Inspect the trip rod (33)  
above the shoulder for damage. There must be no  
reduction in diameter.  
6. Install the o-ring (12) on cylinder (35). Install the cyl-  
inder over the piston and rings.  
7. Install the upper housing (36). Install a 3/4 inch flat  
stock shim between the upper housing and the cyl-  
inder. Install the trip rod guide (41), the spring (34),  
valve spool (38), and the remaining parts from the  
inside of the upper housing. See Parts Drawing,  
page 15,  
20. Pull the trip rod and piston rod (44) from the lower  
housing (43) and cylinder (35).  
21. The seals (17) must be replaced if they are leaking.  
Remove seals from adapter (42).  
8. Holding the trip rod (33) steady with a trip rod pliers  
on the rod, and install the top hex nut (16) on the trip  
rod.  
22. Perform steps 23 and 24 if parts inspected in step  
19 are damaged.  
9. Replace the o-ring (11) on the stop plug (39). Install  
the stop plug in the upper housing (36).  
23. Place the piston rod (44) in a vise; tighten the vise  
on the flats of the piston rod. Use a spanner wrench  
to remove the retainer (32). Remove the trip rod (33)  
from the piston rod (44).  
10. Install tie rods (47) and bolts (23); hand tighten.  
11. Install the two lock nuts (5) and washers (6).  
24. Remove the trip rod nut (10) and piston stop (37). If  
the piston rod is replaced, remove the compression  
springs (18), and compression rings (15) to use the  
new piston rod.  
12. Apply thread sealant to the socket screws (9). Install  
the end cap (40) with the socket screws.  
NOTICE  
To avoid damaging the internal parts, install detent  
parts (31, 21, 29, 30, and 7) after install the end cap  
(40).  
Reassembly  
Refer to FIG. 4 for the following instructions.  
1. Place the pump adapter (42) in a vise. Grease the  
new seal (17) from the repair kit. Install a seal in the  
pump adapter (42) with the lip facings down. Install  
the rod guide (45) and install the second seal with  
the lip facing up in the pump adapter. Install the bot-  
13. Install one detent assembly; retaining plug (31),  
spring (21), gasket (29), ball guide (30), and ball (7).  
Repeat for the other detent assembly.  
12  
308391J  
 
 
Repair  
14. Align the tie rods (47) and bolts (23) and torque to  
70 to 80 ft-lbs (95 to 108 N.m). Install eyelet (26)  
Attach hoist to the eyelet.  
26  
5
9
39  
40  
11  
16  
6
4
7
5
6
34  
38  
30  
21  
41  
29  
15. Screw the top and bottom flare nuts on the hydraulic  
tube (49), and install the tube.  
31  
34  
36  
50  
41  
5
22  
16. Place the motor horizontally in a vise at the pump  
adapter (42) and the bottom cylinder cap (43).  
17. Apply thread sealant to the threads of the piston  
(110) and install the piston, ball (103), and the seal  
(107) with the lips facing up.  
33  
12  
35  
32  
4
47  
5
1
37  
10  
15  
12  
43  
18. Remove the hydraulic motor from the vise.  
19. Place the piston (110) flats in a vise.  
2
3
17  
45  
17  
20. Tighten the piston rod (44) with a wrench.  
21. Remove the piston from the vise.  
18  
42  
46  
Rings must be positioned  
with joints opposed 180  
1
Lips must face  
2
3
4
up toward top of motor  
Lips must face down to-  
ward bottom of pump  
22. Place the pump horizontally in the vise.  
23. Install the displacement pump with a strap wrench.  
24. Remove the hydraulic motor from the bench vise.  
Torque to  
70–80 ft–lb (95–108 N.m)  
Apply Loctite TL–242  
thread sealant to threads  
25  
7
5
6
7
Concave surface faces ball  
Torque to  
120–130 ft–lb (163–176 N.m)  
FIG. 4  
25. Unplug all hydraulic connections and lines and con-  
nect the hydraulic hoses. Connect the displacement  
pump hoses.  
Intake Valve  
Refer to FIG. 5 for the following instructions.  
26. Flush the displacement pump if possible. Relieve  
the pressure (page 8)  
1. Relieve the pressure, see page 8.  
2. Unscrew the valve body (112). Remove the o-ring  
(105), ball (104), and retainer (113).  
3. Inspect the parts for wear or damage. If the ball is  
nicked, replace it. Reassemble, using grease on the  
male threads.  
308391J  
13  
 
   
Repair  
Displacement Pump  
Refer to FIG. 5 for the following instructions.  
NOTE: Clean and inspect all parts for wear of damage  
as you disassemble them. Replace parts as needed. For  
the best results, always replace all the o-rings and pack-  
ings when you disassemble the pump.  
1. Relieve the pressure, see page 8.  
2. Remove the piston (110). Follow steps 1 through 11  
of Disassembly (page 11).  
3. Carefully inspect the smooth inner surface of the  
cylinder (111) for scoring or irregular surfaces. Such  
damage causes premature seal wear and leaking.  
Replace the parts as needed.  
4. Grease the new piston seal and install with the lips  
facing up.  
5. Reconnect the reciprocator and displacement pump  
as described in steps 16 through 26 of Reassembly,  
page 12.  
108  
111  
107  
1
113  
104  
105  
112  
FIG. 5  
14  
308391J  
 
   
Parts  
Parts  
9
40  
32  
33  
39  
11  
16  
41  
34  
23  
2
37  
10  
45  
38  
1
1
15  
15  
18  
34  
41  
36  
24  
26  
56  
29  
21  
7
17  
5
5
6
2
27  
30  
42  
19  
46  
13  
28  
31  
47  
44  
50  
22  
12  
54  
25  
3
49  
14  
43  
See the repair section for important  
torque and lubrication notes  
35  
Rings must be positioned  
1
with joints opposed 180  
Torque to  
2
70–80 ft–lb (95–108 N.m)  
19  
Torque to  
17  
4
3
4
5
120–130 ft–lb (163–176 N.m)  
Lips face up  
12  
Lips face down  
308391J  
15  
 
 
Parts  
Part No./Description  
German (Part No. 290396)  
French (Part No. 290397)  
Spanish (Part No. 290398)  
Ref. Part  
Description  
Qty.  
5
6
7
8
9
100127 NUT, mscr, hex, 5/8-11 unc-2B  
100128 LOCKWASHER, spring, 5/8”  
101701 BALL, 1/4 inch dia  
101754 PLUG, pipe, 3/8 npt(f)  
101864 CAPSCREW, soc hd, 5/16-18 x 1  
inch  
2
4
2
1
3
† Parts included in Pump Repair Kit 236862 (purchase  
separately).  
10  
103450 NUT, hex, self locking, 5/16-18  
1
1
2
1
1
11† 104093 O-RING, nitrile rubber  
12† 104095 O-RING, nitrile rubber  
13  
14  
104098 TEE, tube, for 3/4 in. (19 mm) tube  
104099 ELBOW, 90°, for 3/4 in (19 mm)  
tube  
15† 104103 RING, piston, compression  
16 104105 NUT, hex lock, 1/4-20  
17† 104203 SEAL, v-block, polyurethane  
2
1
2
1
2
1
2
3
18  
19  
20  
21  
22  
104664 SPRING, compression  
105429 NUT, seal, 3/4-14 npt  
105430 NUT, seal, 1 in. npt  
108522 SPRING, helical compression  
108538 SCREW, soc flat hd, self locking,  
1/4-20 x 1/2 in.  
23  
24  
25  
26  
27  
28  
109203 BOLT, hex hd  
2
1
4
2
1
1
2
2
2
1
1
2
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
1
110064 PLUG, pipe, vented  
112570 SCREW, cap, soc hd  
112571 NUT, eye  
112573 ADAPTER, pipe, female  
112574 UNION, swivel  
29† 150111 GASKET, plug  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
54  
167210 GUIDE, ball  
167431 PLUG, spring retaining  
171398 RETAINER  
171407 ROD, trip  
171411 SPRING, compression  
171412 CYLINDER  
172814 HOUSING, upper  
181243 STOP, piston  
181874 SPOOL, valve  
183252 PLUG, stop  
183290 CAP, end  
183659 GUIDE, trip, shaft  
189714 ADAPTER, pump  
189715 CAP, cylinder, bottom  
189716 PISTON, rod, hydraulic  
189717 GUIDE, rod  
189718 PLATE, mounting  
189719 ROD, tie  
189720 LABEL, identification  
210108 TUBE  
210292 BEARING and GUIDE  
116343 SCREW, ground  
56290331 LABEL, instruction, English  
Replacement Danger and Warning labels, tags, and  
cards are available at no cost. Also available in the  
following languages:  
16  
308391J  
 
 
Parts  
Ref. Part  
Description  
Qty.  
Ref. Part  
Description  
Qty.  
110 189707 PISTON, fluid  
111 189708 CYLINDER, pump  
112 189709 VALVE, housing  
113 189710 RETAINER, ball  
114 189711 WASHER, piston  
1
1
1
1
1
101 236752 RECIPROCATOR, hydra,  
Power-Star  
103 101178 BALL, metallic  
104 108001 BALL, metallic, sst  
105† 110828 PACKING, o-ring  
107† 112565 SEAL, block vee  
108† 166071 PACKING, o-ring  
1
1
1
1
1
1
Parts included in Pump Repair Kit 236862 (purchase  
separately).  
114  
107  
103  
110  
108  
101  
111  
105  
03845  
113  
104  
112  
308391J  
17  
 
Technical Data  
Technical Data  
.
Power-Star  
US  
Metric  
Fluid Ratio  
1:1  
45.4 lpm  
10.3 MPa, 103 bar  
45.4 lpm  
Maximum Output Flow  
Maximum Output Pressure  
Maximum Input Flow  
12.0 gpm  
1500 psi  
12.0 gpm  
1500 psi  
130°F  
Maximum Hydraulic Fluid Input Pressure  
Maximum Input Fluid Temperature  
Pressure Reducing Adjustment Range  
Weight  
10.3 MPa, 103 bar  
55°C  
300-1500 psi  
100lb  
2.07 - 10.3 MPa, 20.7 - 103 bar  
45.4 kg  
Rod Seals  
Nitrile  
Polyurethane  
Piston Seals  
Displacement Pump Wetted Parts  
Sound Pressure  
Iron, Steel, SST Nitrile, Polyurethane  
78 dB(A)*  
* Sound pressure reading taken with pump operating at 60 cycles per minute. Sound pressure measured per  
CAGI-PNEUROP, 1971  
Loctite® is a registered trademark of the Loctite Corporation.  
Dimensions  
8.0 in.  
(203.2 mm)  
7.0 in.  
(177.8 mm)  
4.0 in.  
(101.6 mm)  
30 in.  
(762 mm)  
.406 in. ( 10.31 mm) diameter (4);  
for 3/8 in. screw  
18  
308391J  
 
 
Technical Data  
Performance Chart  
308391J  
19  
 
Graco Standard Warranty  
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in  
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty  
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by  
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written  
recommendations.  
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty  
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of  
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with  
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or  
maintenance of structures, accessories, equipment or materials not supplied by Graco.  
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of  
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned  
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will  
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.  
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED  
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.  
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy  
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or  
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.  
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT  
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to  
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these  
warranties.  
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or  
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the  
negligence of Graco, or otherwise.  
FOR GRACO CANADA CUSTOMERS  
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,  
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la  
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite  
de ou en rapport, directement ou indirectement, avec les procédures concernées.  
Graco Information  
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.  
Phone: 612-623-6928 or Toll Free: 1-800-533-9655, Fax: 612-378-3590  
All written and visual data contained in this document reflects the latest product information available at the time of publication.  
Graco reserves the right to make changes at any time without notice.  
Original instructions. This manual contains English. MM 308391  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA  
Copyright 1994, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.  
Revised February 2014  
 
 

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