Graco Heat Pump 218747 User Manual

Instructions–Parts List  
3:1 Ratio PresidentR Pump  
Used for transfer, supply, and recirculation of compatible fluids. For  
professional use only.  
307674R  
EN  
360 psi (2.5 MPa, 25 bar) Maximum Fluid Working Pressure  
120 psi (0.8 MPa, 8.3 bar) Maximum Air Input Pressure  
* Part No. 218747, Series C  
Stainless Steel, Stubby Size, UHMWPE and Leather Packed  
* Part No. 237142, Series A  
Carbon Steel, Stubby Size, Leather Packed with PTFE Backup  
* Part No. 237143, Series A  
Carbon Steel, Stubby Size, Leather and PTFE Packed  
* Part No. 237146, Series A  
Stainless Steel, Stubby Size, PTFE Packed  
** Part No. 218795, Series C  
Stainless Steel, 55 Gallon (200 Liter) Drum Size,  
UHMWPE and Leather Packed  
** Part No. 237144, Series A  
Carbon Steel, 55 Gallon (200 Liter) Drum Size,  
Leather Packed with PTFE Backup  
Part No. 237145, Series A  
Stainless Steel, 55 Gallon (200 Liter) Drum Size,  
PTFE Packed  
*This model is  
0359  
0359  
II 2 G T6  
**This model is  
II 1/2 G T6  
ITS03ATEX11228  
Model 218747 Shown  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
 
WARNING  
EQUIPMENT MISUSE HAZARD  
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.  
INSTRUCTIONS  
D This equipment is for professional use only.  
D Read all instruction manuals, tags, and labels before operating the equipment.  
D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.  
D Do not alter or modify this equipment.  
D Check equipment daily. Repair or replace worn or damaged parts immediately.  
D Do not exceed the maximum working pressure of the lowest rated system component. Refer to the  
Technical Data on page 17 for the maximum working pressure of this equipment.  
D Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-  
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.  
D Do not use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or  
fluids containing such solvents in aluminum equipment. Such use could result in a serious chemical  
reaction, with the possibility of explosion.  
D Do not use hoses to pull equipment.  
D Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose  
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).  
D Wear hearing protection when operating this equipment.  
D Do not lift pressurized equipment.  
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.  
307674  
3
 
WARNING  
FIRE AND EXPLOSION HAZARD  
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and  
result in a fire or explosion and serious injury.  
D Ground the equipment and the object being sprayed. Refer to Grounding on page 5.  
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-  
ing immediately. Do not use the equipment until you identify and correct the problem.  
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid  
being sprayed.  
D Eliminate all ignition sources such as pilot lights, cigarettes and plastic drop cloths (static arc  
hazard). Do not plug or unplug power cords or turn lights on or off in the spray area.  
D Keep the spray area free of debris, including solvent, rags, and gasoline.  
D Electrically disconnect all equipment in the spray area.  
D Do not operate a gasoline engine in the spray area.  
TOXIC FLUID HAZARD  
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,  
inhaled, or swallowed.  
D Know the specific hazards of the fluid you are using.  
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,  
state and national guidelines.  
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and  
solvent manufacturer.  
MOVING PARTS HAZARD  
Moving parts, such as the air motor piston, can pinch or amputate your fingers.  
D Keep clear of all moving parts when starting or operating the pump.  
D Before servicing the equipment, follow the Pressure Relief Procedure on page 8 to prevent the  
equipment from starting unexpectedly.  
4
307674  
 
Installation  
Z
General Information  
X
W
NOTE: Reference numbers and letters in parentheses  
in the text refer to the callouts in the figures and the  
parts drawing.  
NOTE: Always use Genuine Graco Parts and Acces-  
sories, available from your Graco distributor. If you  
supply your own accessories, be sure they are ade-  
quately sized and pressure rated for your system.  
Y
0864  
Fig. 1  
2. Air and fluid hoses: use only electrically conductive  
Fig. 2 is only a guide for selecting and installing sys-  
tem components and accessories. Contact your Graco  
distributor for assistance in designing a system to suit  
your particular needs.  
hoses.  
3. Air compressor: follow manufacturer’s recommen-  
dations.  
4. Spray gun: ground through connection to a proper-  
ly grounded fluid hose and pump.  
Prepare the Operator  
5. Fluid supply container: follow your local code.  
6. Object being sprayed: follow your local code.  
All persons who operate the equipment must be  
trained in the safe, efficient operation of all system  
components as well as the proper handling of all fluids.  
All operators must thoroughly read all instruction  
manuals, tags, and labels before operating the equip-  
ment.  
7. Solvent pails used when flushing: follow your local  
code. Use only metal pails, which are conductive,  
placed on a grounded surface. Do not place the  
pail on a nonconductive surface, such as paper or  
cardboard, which interrupts the grounding continu-  
ity.  
Grounding  
8. To maintain grounding continuity when flushing or  
relieving pressure, hold a metal part of the spray  
gun firmly to the side of a grounded metal pail,  
then trigger the gun.  
WARNING  
FIRE AND EXPLOSION HAZARD  
Before operating the pump, ground the  
system as explained below. Also read  
the section FIRE AND EXPLOSION  
HAZARD on page 4.  
Mounting the Pump  
Mount the pump to suit the type of installation planned.  
The pump dimensions and mounting hole layout are  
shown on page 16.  
If the pump is immersed, be sure the pump intake is  
1/2 in. (13 mm) off the bottom of the fluid container.  
1. Pump: order Part No. 237569 Ground Wire and  
Clamp. See Fig. 1. Loosen the grounding lug  
locknut (W) and washer (X). Insert one end of the  
ground wire (Y) into the slot in lug (Z) and tighten  
the locknut securely. Connect the other end of the  
wire to a true earth ground.  
If the pump is mounted on the wall or on a stand,  
connect a suction line to the pump’s 1–1/2” npt(f) fluid  
inlet and place the other end of the line in the fluid  
container.  
307674  
5
 
Installation  
KEY  
A
Bleed-Type Master Air Valve  
F
G
H
J
K
L
Fluid Shutoff Valves  
Fluid Filter  
Fluid Pressure Regulator  
Air Spray Gun  
Back Pressure Regulator  
Pump  
M
N
Air Supply Line  
Bleed-Type Master Air Valves  
(for accessories)  
Main Fluid Supply Line  
Pump Runaway Valve  
S
T
Y
Main Fluid Return Line  
Secondary Fluid Return Line  
Ground Wire (required;  
see page 5 for installation  
instructions)  
(required, for pump)  
Air Filter/Regulator  
Air Line Lubricator  
Fluid Drain Valve (required)  
Surge Tank  
B
C
D
E
P
R
B
N
H
F
M
N
M
B
P
J
Y
F
G
F
E
R
L
M
F
K
F
K
F
T
D
A
C
S
06089  
Fig. 2  
6
307674  
 
Installation  
Fluid Line Accessories  
Available Accessories (must be  
purchased separately)  
WARNING  
Air Line Accessories  
A fluid drain valve (D) is required in your system to  
help reduce the risk of serious injury, including  
splashing of fluid in the eyes or on the skin.  
WARNING  
A bleed-type master air valve (A) is required in your  
system to help reduce the risk of serious injury,  
including splashing of fluid in the eyes or on the  
skin, and injury from moving parts if you are adjust-  
ing or repairing the pump.  
The fluid drain valve assists in relieving fluid pres-  
sure in the displacement pump, hose, and gun.  
Triggering the gun to relieve pressure may not be  
sufficient.  
The bleed-type master air valve relieves air trapped  
between this valve and the pump after the air is  
shut off. Trapped air can cause the pump to cycle  
unexpectedly. Locate the valve close to the pump.  
D The fluid drain valve (D) is required in your sys-  
tem to relieve fluid pressure in the hose and gun  
(see the WARNING above).  
D Install a surge tank (E) to reduce fluid line pulsa-  
D The bleed-type master air valve (A) is required in  
your system to relieve air trapped between it and  
the air motor when the valve is closed (see the  
WARNING above). Be sure the bleed valve is  
easily accessible from the pump, and is located  
downstream from the air filter/regulator (B). Order  
Part No. 113269 Bleed Valve.  
tions.  
D Install two fluid filters (G) to remove impurities  
from the fluid before it reaches the spray gun (J).  
Install fluid shutoff valves (F) upstream and down-  
stream from each filter; this arrangement enables  
you to continue spraying while cleaning a filter.  
D The air filter/regulator (B) controls pump speed  
and outlet pressure by adjusting the air pressure to  
the pump and the air spray gun. It also removes  
harmful dirt and moisture from the compressed air  
supply. Locate the pump air filter/regulator up-  
stream from the pump’s bleed-type master air  
valve (A). Also, supply an air filter/regulator at each  
spray booth.  
D Install a fluid pressure regulator (H) to provide  
precise fluid pressure control at each spray booth.  
D Install fluid shutoff valves (F) where shown.  
Fluid Return Line  
D Install a main fluid return line (S) to circulate fluid  
back to the pump’s return port.  
D A pump runaway valve (R) automatically shuts off  
the pump if it starts running too fast. A pump which  
runs too fast can be seriously damaged.  
D Install a secondary fluid return line (T) to circu-  
late fluid from the spray guns back to the fluid  
supply container.  
D An air line lubricator (C) provides automatic air  
motor lubrication. Install downstream from the  
pump air filter/regulator (B).  
D Install a back pressure regulator (K) on each  
fluid return line, after the last gun station, to provide  
constant system back pressure for all spray guns  
and proper pressure for fluid circulation.  
D Install additional air bleed valves (N) at each air  
line drop, to isolate accessories for servicing.  
307674  
7
 
Operation  
If the pump is not immersed, fill the packing nut/wet-  
Pressure Relief Procedure  
cup 1/2 full with a compatible solvent. Keep the cup  
filled at all times to help prevent the fluid you are  
pumping from drying on the exposed displacement rod  
and damaging the throat packings.  
WARNING  
PRESSURIZED EQUIPMENT HAZARD  
The system pressure must be manually relieved to  
prevent the system from starting or spraying acci-  
dentally. To reduce the risk of an injury from acci-  
dental spray from the gun, splashing fluid, or  
moving parts, follow the Pressure Relief Proce-  
dure whenever you:  
Flush the Pump Before First Use  
The pump is tested with lightweight oil, which is left in  
to protect the pump parts. If the fluid you are using  
may be contaminated by the oil, flush it out with a  
compatible solvent. See Flushing on page 10.  
D are instructed to relieve the pressure,  
D stop spraying,  
Model 218747 Shown  
D check or service any of the system equipment,  
D or install or clean the spray nozzle.  
1. Shut off the air supply to the pump.  
2. Close the bleed-type master air valve (A, required  
in your system).  
3. Hold a metal part of the gun firmly to the side of a  
grounded metal pail, and trigger the gun to relieve  
pressure.  
4. Open the drain valve (D, required in your system),  
having a container ready to catch the drainage.  
5. Leave the drain valve open until you are ready to  
spray again.  
If you suspect that the spray nozzle or hose is com-  
pletely clogged, or that pressure has not been fully  
relieved after following the steps above, very slowly  
loosen the nozzle retaining ring or hose end coupling  
and relieve pressure gradually, then loosen completely.  
Now clear the nozzle or hose.  
U
Packing Nut  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure at left.  
Check the tightness of the packing nut/wet-cup (U)  
periodically. The nut should be tight enough to prevent  
leakage. Torque the nut to 20–24 ft-lb (27–33 N.m); do  
not overtighten or you may damage the packings.  
Relieve pressure before adjusting the nut. See Fig. 3.  
06110  
Fig. 3  
8
307674  
 
Operation  
Prime the Pump  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 8.  
1. See Fig. 2. Remove the spray nozzle from the  
gun. See the gun instruction manual.  
2. Close all bleed-type air valves (A, N).  
3. Close the pump air filter/regulator (B).  
4. Close the fluid drain valve (D).  
11. Relieve the pressure. Install the spray nozzle in  
the gun, as explained in the gun manual.  
5. Check that all fittings throughout the system are  
tightened securely.  
WARNING  
COMPONENT RUPTURE HAZARD  
To reduce the risk of overpressurizing  
your system, which could cause compo-  
nent rupture and serious injury, never  
exceed 120 psi (8 bar) air supply pressure to the  
pump.  
6. Connect the air supply line to the pump air inlet.  
7. Open the bleed-type air valves (A, N).  
8. Hold a metal part of the gun firmly to the side of a  
grounded metal pail and hold the trigger open.  
12. Use the air filter/regulator (B) to control pump  
outlet pressure and pump speed. Always use the  
lowest pressure necessary to get the desired  
results. Higher pressure causes premature pump  
wear.  
9. Open the air filter/regulator (B) until the pump  
starts. Run the pump slowly until all air is pushed  
out and the system is fully primed. Always use the  
lowest pressure necessary to get the desired  
results. Higher pressures cause premature tip and  
pump wear.  
CAUTION  
10. Release the gun trigger and lock the trigger safety.  
Do not allow the pump to run dry. It will quickly  
accelerate to a high speed, causing damage. If your  
pump is running too fast, stop it immediately and  
check the fluid supply. If the container is empty and  
air has been pumped into the lines, refill the con-  
tainer and prime the pump and the lines, or flush and  
leave it filled with a compatible solvent. Eliminate all  
air from the fluid system.  
In a circulating system, the pump will run continu-  
ously and slow down or speed up on demand, until  
the air supply is shut off.  
In a direct supply system, with adequate air pres-  
sure supplied to the motor, the pump will start and  
stop as you open and close the gun.  
307674  
9
 
Maintenance  
Shutdown and Care of the Pump  
CAUTION  
Never leave water or water-base fluid in the pump  
overnight. If you are pumping water-base fluid, flush  
with water first, then with a rust inhibitor such as  
mineral spirits. Relieve the pressure, but leave the  
rust inhibitor in the pump to protect the parts from  
corrosion.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 8.  
For overnight shutdown, stop the pump at the bottom  
of its stroke to prevent fluid from drying on the ex-  
posed displacement rod and damaging the throat  
packings. Relieve the pressure.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 8.  
Always flush the pump before the fluid dries on the  
displacement rod. See Flushing below.  
1. Relieve the pressure.  
2. Remove the spray nozzle from the gun.  
Flushing  
3. Hold a metal part of the gun firmly to the side of a  
grounded metal pail.  
WARNING  
4. Start the pump. Always use the lowest possible  
fluid pressure when flushing.  
FIRE AND EXPLOSION HAZARD  
Before flushing, read the section FIRE  
AND EXPLOSION HAZARD on page  
4. Be sure the entire system and flush-  
ing pails are properly grounded. Refer to  
Grounding on page 5.  
5. Trigger the gun.  
6. Flush the system until clear solvent flows from the  
gun.  
7. Relieve the pressure.  
Flush the pump:  
8. Clean the spray nozzle separately, then reinstall it.  
Corrosion Protection for Carbon Steel  
Pumps  
D Before the first use  
D When changing colors or fluids  
CAUTION  
Water, or even moist air, can cause your pump to  
corrode. To help prevent corrosion, never leave the  
pump filled with water or air. Follow the instructions  
under Flushing, at left.  
D Before fluid can dry or settle out in a dormant pump  
(check the pot life of catalyzed fluids)  
D Before storing the pump.  
Fluid Piston and Intake Valve Adjustment  
Flush with a fluid that is compatible with the fluid you  
are pumping and with the wetted parts in your system.  
Check with your fluid manufacturer or supplier for  
recommended flushing fluids and flushing frequency.  
The fluid piston and intake valves are factory set for  
pumping medium viscosity fluids. See the separate  
displacement pump manual, 307652, for adjustment  
procedures to pump lighter or heavier viscosity fluids.  
10  
307674  
 
Troubleshooting  
1. Relieve the pressure.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 8.  
2. Check all possible problems and solutions before  
disassembling pump.  
Problem  
Cause  
Restricted line or inadequate air  
Solution  
Pump fails to operate.  
Clear; increase air supply.  
supply.  
Dirty or damaged air motor.  
Service air motor (see 306982 or  
307157).  
Clogged fluid hose, gun, or nozzle.  
Clear.*  
Pump operates but output is low on Restricted line or inadequate air  
Clear; increase air supply.  
both strokes.  
supply.  
Exhausted fluid supply.  
Clogged fluid hose, gun, or nozzle.  
Refill; reprime or flush.  
Clear.*  
Loose packing nut or worn throat  
packings.  
Tighten packing nut (see page 8);  
replace throat packings.  
Piston and intake valves need ad-  
justment.  
Adjust; see manual 307652.  
Pump operates but output is low on Held open or worn intake valve.  
downstroke.  
Clear; service. See manual 307652.  
Pump operates but output is low on Held open or worn fluid piston valve Clear; service. See manual 307652.  
upstroke.  
or packings.  
Erratic or accelerated operation.  
Exhausted fluid supply.  
Refill; reprime or flush.  
Piston and intake valves need ad-  
justment.  
Adjust; see manual 307652.  
Held open or worn intake valve.  
Clear; service. See manual 307652.  
Held open or worn fluid piston valve Clear; service. See manual 307652.  
or packings.  
* To determine if the fluid hose or gun is obstructed, follow the Pressure Relief Procedure on page 8. Discon-  
nect the fluid hose and place a container at the pump fluid outlet to catch any fluid. Turn on the air just enough to  
start the pump (about 20–40 psi [1.4–2.8 bar]). If the pump starts when the air is turned on, the obstruction is in  
the fluid hose or gun.  
307674 11  
 
Service  
Disconnecting the Displacement Pump  
Reconnecting the Displacement Pump  
NOTE: For displacement pump repair instructions,  
refer to the separate displacement pump manual  
307652, supplied.  
1. Position the displacement pump on the mounting  
tubes (10, 11). Thread the upper locknut (13) onto  
the return mounting tube (10) a couple of turns.  
Tighten the swivel union (S) securely onto the  
supply mounting tube (11). See Fig. 4.  
WARNING  
2. Butt the connecting rod (2) and displacement rod  
(R) together; if necessary, adjust the locknuts (13)  
on the return mounting tube (10) to align the rods.  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 8.  
1. Flush the pump if possible. Stop the pump at the  
3. Position the coupling collars (21) so they engage  
with the connecting rod (2) and displacement rod  
(R). Lower the coupling nut (20) over the coupling  
collars and screw it securely onto the displacement  
rod.  
bottom of its stroke. Relieve the pressure.  
2. Disconnect all hoses and remove the pump from  
its mounting.  
3. Unscrew the coupling nut (20) from the displace-  
ment rod (R). Remove the coupling collars (21).  
See Fig. 4.  
4. Tighten the locknuts (13) securely.  
5. Remount the pump and connect all hoses.  
4. Unscrew the lower locknut (13) and lockwasher  
(12) from the return mounting tube (10).  
6. Turn on the air to the motor and run the pump  
slowly. Adjust the locknuts (13) on the return  
mounting tube (10) as necessary until the pump  
operates smoothly at minimum air pressure to the  
motor. Tighten the locknuts securely.  
5. Unscrew the swivel union (S) from the supply  
mounting tube (11).  
CAUTION  
If you are removing the mounting tubes, wrench the  
tubes close to the motor base to prevent thread  
damage in the base. Use thread sealant on the male  
threads when reinstalling.  
7. Reconnect the ground wire if it was disconnected  
during repair.  
8. If the pump is not immersed, fill the packing nut/  
wet-cup 1/2 full of compatible solvent.  
12  
307674  
 
Service  
Torque to 65–75 ft-lb (88–102 N.m).  
Apply thread sealant.  
1
2
3
Lubricate.  
1
Model 218747 Shown  
8
15  
14  
2
20  
6
3
10  
4
2
1
2
11  
21  
13  
R
S
12  
3
12  
13  
06108  
Fig. 4  
307674 13  
 
Parts  
Model 218747, Series C  
3:1 Ratio President Pump, Stubby Size; UHMWPE and Leather Packed  
Model 237142, Series A  
3:1 Ratio President Pump, Stubby Size; Leather Packed with PTFE Backup  
Model 237143, Series A  
3:1 Ratio President Pump, Stubby Size; Leather and PTFE Packed  
Model 237146, Series A  
3:1 Ratio President Pump, Stubby Size; PTFE Packed  
Ref  
No.  
Part  
No.  
Used on Models 2218747, 237142, and 237143 only.  
Used on Model 237146 only.  
1
2
Description  
Qty  
1
210007  
205038  
AIR MOTOR, President;  
used on 218747; see 307157  
AIR MOTOR, President  
used on 237142, 237143, and  
237146; see 306982  
ROD, connecting;  
5.69” (144.5 mm) long  
PUMP, displacement;  
used on 218747; see 307652  
PUMP, displacement;  
used on 237142; see 307652  
PUMP, displacement;  
used on 237143; see 307652  
PUMP, displacement;  
used on 237146; see 307652  
PIN, cotter  
1
1
1
1
1
1
2
3
190116  
218746  
237140  
237141  
237199  
1
15  
8
1
1
1
14  
4
6
8
100579  
156082  
166443  
O-RING; nitrile rubber  
NIPPLE, hex, reducing;  
3/4 x 1/2 npt  
20  
6
1
1
10  
11  
180986  
189215  
TUBE, return;  
12.812” (325.4 mm) long  
TUBE, supply;  
10  
4
2
6.75” (171.5 mm) long;  
used on 218747, 237142,  
and 237143 only  
TUBE, supply; 1” npt(f) fluid outlet;  
6.75” (171.5 mm) long;  
used on 237146 only  
LOCKWASHER, ext shakeproof  
NUT, lock; 3/4–11  
1
11 2  
112919  
11 1  
21  
1
2
2
13  
12  
12  
13  
14  
118160  
171217  
171439  
NIPPLE, hex, reducing;  
1” x 3/4 npt  
1
15  
158256  
UNION; straight adapter;  
1/2 npt(m) x 3/8 npsm(f)  
NUT, coupling  
1
1
2
3
20  
21  
190117  
190119  
COLLAR, coupling  
12  
13  
TI0497  
14  
307674  
 
Parts  
Model 218795, Series C  
3:1 Ratio President Pump, 55 Gallon (200 Liter) Drum Size;  
UHMWPE and Leather Packed  
Model 237144, Series A  
3:1 Ratio President Pump, 55 Gallon (200 Liter) Drum Size;  
Leather Packed with PTFE Backup  
Model 237145, Series A  
3:1 Ratio President Pump,  
Used on Models 237144 and 237145 only.  
1
2
Used on Model 218795 only (not shown).  
55 Gallon (200 Liter) Drum Size; PTFE Packed  
Used on Models 218795 and 237144 only.  
Used on Model 237145 only.  
3
4
Ref  
No.  
Part  
No.  
Description  
Qty  
1
210007  
205038  
AIR MOTOR, President;  
used on 218795; see 307157  
AIR MOTOR, President;  
used on 237144 and 237145;  
see 306982  
1
1
1
1
1
1
2
3
190115  
218746  
237140  
237199  
ROD, connecting;  
18.25” (463.6 mm) long  
PUMP, displacement;  
used on 218795; see 307652  
PUMP, displacement;  
used on 237144; see 307652  
PUMP, displacement;  
used on 237145; see 307652  
PIN, cotter  
8
1
2
15  
or 7  
1
1
1
4
6
7
100579  
156082  
100081  
20  
6
O-RING; nitrile rubber  
BUSHING; 1/2 npt(m) x 3/8 npt(f);  
used on 218795 only  
NIPPLE; 3/4 npt  
1
1
8
10  
160032  
180990  
4
TUBE, return;  
25.375” (644.5 mm) long  
TUBE, supply;  
19.312” (490.52 mm) long;  
1
10  
11  
11  
189216  
112918  
2
4
used on 218795 and 237144 only 1  
TUBE, supply; 1” npt(f) fluid outlet;  
19.312” (490.52 mm) long;  
11 3  
used on 237145 only  
LOCKWASHER, ext shakeproof  
NUT, lock; 3/4–11  
1
2
2
21  
13  
12  
12  
13  
15  
118160  
171217  
158256  
UNION; straight adapter;  
1/2 npt(m) x 3/8 npsm(f);  
used on 237144 and 237145 only 1  
20  
21  
190117  
190119  
NUT, coupling  
COLLAR, coupling  
1
2
3
12  
13  
TI0498  
307674 15  
 
Dimensions  
Mounting Hole  
Layout  
0.375”  
(9.52 mm)  
diameter  
2.254”  
(57.25 mm)  
2.254”  
(57.25 mm)  
B
3.188”  
(80.97 mm)  
A
2.625”  
(66.67 mm)  
5.250”  
(133.4 mm)  
3/4 npt(f)  
return  
1” npt(f)  
outlet  
NOTE: Use mounting gasket 161322.  
06088  
C
06110  
Model No.  
A
B
C
218795  
48.88 in.  
(1242 mm)  
16.38 in.  
(416 mm)  
32.5 in.  
(826 mm)  
237144,  
237145  
48.95 in.  
(1244 mm)  
16.45 in.  
(418 mm)  
32.5 in.  
(826 mm)  
218747  
36.38 in.  
(924 mm)  
16.38 in.  
(416 mm)  
20 in.  
(508 mm)  
237142,  
237143,  
237146  
36.45 in.  
(926 mm)  
16.45 in.  
(418 mm)  
20 in.  
(508 mm)  
16  
307674  
 
Technical Data  
Category  
Data  
Ratio  
3:1  
Maximum fluid working pressure  
Maximum air input pressure  
Pump cycles per 1 gallon (3.8 liters)  
Fluid flow at 60 cycles per minute  
Fluid inlet size  
360 psi (2.5 MPa, 25 bar)  
120 psi (0.8 MPa, 8.3 bar)  
6
10 gpm (38 liters/min)  
1–1/2 npt(f)  
Fluid outlet size  
1 in. npt(f)  
Air inlet size  
3/8 npsm(f)  
Weight  
47 lb (21.32 kg)  
180_F (82_C)  
94 dBa  
Maximum pump operating temperature  
* Sound level at 100 psi, 60 cycles per minute  
* Sound power level at 100 psi, 60 cycles per minute  
Wetted parts  
109 dBa  
Supply and Return Tubes: Stainless steel  
Air Motor Base: Aluminum  
Displacement Pump: Refer to manual 307652  
* Tested in accordance with ISO 3744.  
Performance Charts  
A
B
C
100 psi (7 bar) air pressure  
70 psi (4.9 bar) air pressure  
40 psi (2.8 bar) air pressure  
Fluid Outlet Pressure Chart  
Air Consumption Chart  
cycles per min  
psi  
scfm  
m#/min  
40  
cycles per min  
bar  
15  
30  
45  
60  
15  
30  
45  
60  
400  
1.120  
28  
350  
35  
24.5  
0.980  
300  
30  
21  
0.840  
250  
25  
0.700  
A
B
C
17.5  
A
200  
14  
20  
0.560  
B
C
150  
10.5  
15  
0.420  
100  
7
10  
0.280  
50  
3.5  
5
0.140  
0
0
0.0  
2.5  
5.0  
7.5  
10.0  
0.0  
2.5  
5.0  
7.5  
10.0  
gpm  
liters/min  
gpm  
liters/min  
9.5  
19  
29  
38  
9.5  
19  
29  
38  
FLUID FLOW (TEST FLUID: NO 10 MOTOR OIL)  
FLUID FLOW (TEST FLUID: NO 10 MOTOR OIL)  
To find Fluid Outlet Pressure (bar/psi) at a specific fluid flow (lpm/  
gpm) and operating air pressure (bar/psi):  
To find Pump Air Consumption (m#/min or scfm) at a specific fluid  
flow (lpm/gpm) and operating air pressure (bar/psi):  
1. Locate desired flow along bottom of chart.  
1. Locate desired flow along bottom of chart.  
2. Follow vertical line up to intersection with selected fluid outlet  
pressure curve. Follow left to scale and read fluid outlet pressure.  
2. Follow vertical line up to intersection with selected air consump-  
tion curve. Follow left to scale and read air consumption.  
307674 17  
 
Graco Standard Warranty  
Graco warrants all equipment 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 sub-  
stitution 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 reconnais-  
sent 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 procedures concernées.  
Graco Information  
TO PLACE AN ORDER, contact your Graco distributor or call to identify the distributor closest to you:  
Phone: 612–623–6921 or Toll Free: 1–800–328–0211 Fax: 612–378–3505  
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 307674  
Graco Headquarters: Minneapolis  
International Offices: Belgium, China, Japan, Korea  
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441  
Copyright 1985, Graco Inc. is registered to ISO 9001  
Revision R, July 2013  
18  
307674  
 

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