Page 1
Instructions–Parts List
3:1 Ratio PresidentR Pump
Used for transfer, supply, and recirculation of compatible fluids. For
professional use only.
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
307674R
EN
** 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
**This model is
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
0359
0359
T6
II 2 G
II 1/2 G T6
ITS03ATEX11228
Model 218747 Shown
Page 2
Table of Contents
Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Warranty 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Information 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
2 307674
Page 3
INSTRUCTIONS
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
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
Page 4
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
Page 5
Installation
General Information
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 Accessories, available from your Graco distributor. If you
supply your own accessories, be sure they are adequately sized and pressure rated for your system.
Fig. 2 is only a guide for selecting and installing system components and accessories. Contact your Graco
distributor for assistance in designing a system to suit
your particular needs.
Prepare the Operator
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 equipment.
Grounding
Z
X
W
Y
0864
Fig. 1
2. Air and fluid hoses: use only electrically conductive
hoses.
3. Air compressor: follow manufacturer’s recommendations.
4. Spray gun: ground through connection to a properly grounded fluid hose and pump.
5. Fluid supply container: follow your local code.
6. Object being sprayed: follow your local code.
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 continuity.
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.
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.
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.
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.
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
Page 6
KEY
A Bleed-Type Master Air Valve
(required, for pump)
B Air Filter/Regulator
C Air Line Lubricator
D Fluid Drain Valve (required)
E Surge Tank
Installation
F Fluid Shutoff Valves
G Fluid Filter
H Fluid Pressure Regulator
J Air Spray Gun
K Back Pressure Regulator
L Pump
M Air Supply Line
N Bleed-Type Master Air Valves
(for accessories)
P Main Fluid Supply Line
R Pump Runaway Valve
S Main Fluid Return Line
T Secondary Fluid Return Line
Y Ground Wire (required;
see page 5 for installation
instructions)
M
B
N
H
F
J
F
M
B
N
M
P
Y
EFG
R
L
K
K
F
F
F
A
D
T
C
Fig. 2
6 307674
S
06089
Page 7
Installation
Available Accessories (must be
purchased separately)
Air Line Accessories
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 adjusting or repairing the pump.
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 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.
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 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 An air line lubricator (C) provides automatic air
motor lubrication. Install downstream from the
pump air filter/regulator (B).
D Install additional air bleed valves (N) at each air
line drop, to isolate accessories for servicing.
Fluid Line Accessories
WARNING
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.
The fluid drain valve assists in relieving fluid pressure in the displacement pump, hose, and gun.
Triggering the gun to relieve pressure may not be
sufficient.
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-
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 downstream from each filter; this arrangement enables
you to continue spraying while cleaning a filter.
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 Install a secondary fluid return line (T) to circu-
late fluid from the spray guns back to the fluid
supply container.
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.
307674 7
Page 8
Operation
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The system pressure must be manually relieved to
prevent the system from starting or spraying accidentally. To reduce the risk of an injury from accidental spray from the gun, splashing fluid, or
moving parts, follow the Pressure Relief Proce-
dure whenever you:
D are instructed to relieve the pressure,
D stop spraying,
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.
If the pump is not immersed, fill the packing nut/wetcup 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.
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.
Model 218747 Shown
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 completely 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.
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.
U
06110
Fig. 3
8 307674
Page 9
Operation
Prime the Pump
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).
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
3. Close the pump air filter/regulator (B).
4. Close the fluid drain valve (D).
5. Check that all fittings throughout the system are
tightened securely.
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.
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.
10. Release the gun trigger and lock the trigger safety.
In a circulating system, the pump will run continuously and slow down or speed up on demand, until
the air supply is shut off.
In a direct supply system, with adequate air pressure supplied to the motor, the pump will start and
stop as you open and close the gun.
11. Relieve the pressure. Install the spray nozzle in
the gun, as explained in the gun manual.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing
your system, which could cause component rupture and serious injury, never
exceed 120 psi (8 bar) air supply pressure to the
pump.
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.
CAUTION
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 container and prime the pump and the lines, or flush and
leave it filled with a compatible solvent. Eliminate all
air from the fluid system.
307674 9
Page 10
Shutdown and Care of the Pump
Maintenance
CAUTION
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 exposed displacement rod and damaging the throat
packings. Relieve the pressure.
Always flush the pump before the fluid dries on the
displacement rod. See Flushing below.
Flushing
WARNING
FIRE AND EXPLOSION HAZARD
Before flushing, read the section FIRE
AND EXPLOSION HAZARD on page
4. Be sure the entire system and flushing pails are properly grounded. Refer to
Grounding on page 5.
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.
1. Relieve the pressure.
2. Remove the spray nozzle from the gun.
3. Hold a metal part of the gun firmly to the side of a
grounded metal pail.
4. Start the pump. Always use the lowest possible
fluid pressure when flushing.
5. Trigger the gun.
6. Flush the system until clear solvent flows from the
gun.
7. Relieve the pressure.
Flush the pump:
D Before the first use
D When changing colors or fluids
D Before fluid can dry or settle out in a dormant pump
(check the pot life of catalyzed fluids)
D Before storing the pump.
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.
8. Clean the spray nozzle separately, then reinstall it.
Corrosion Protection for Carbon Steel
Pumps
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.
Fluid Piston and Intake Valve Adjustment
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
Page 11
Troubleshooting
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. Relieve the pressure.
2. Check all possible problems and solutions before
disassembling pump.
Problem
Pump fails to operate. Restricted line or inadequate air
supply.
Dirty or damaged air motor. Service air motor (see 306982 or
Clogged fluid hose, gun, or nozzle. Clear.*
Pump operates but output is low on
both strokes.
Pump operates but output is low on
downstroke.
Pump operates but output is low on
upstroke.
Erratic or accelerated operation. Exhausted fluid supply. Refill; reprime or flush.
Restricted line or inadequate air
supply.
Exhausted fluid supply. Refill; reprime or flush.
Clogged fluid hose, gun, or nozzle. Clear.*
Loose packing nut or worn throat
packings.
Piston and intake valves need ad-
justment.
Held open or worn intake valve. Clear; service. See manual 307652.
Held open or worn fluid piston valve
or packings.
Piston and intake valves need adjustment.
Held open or worn intake valve. Clear; service. See manual 307652.
Held open or worn fluid piston valve
or packings.
Cause Solution
Clear; increase air supply.
307157).
Clear; increase air supply.
Tighten packing nut (see page 8);
replace throat packings.
Adjust; see manual 307652.
Clear; service. See manual 307652.
Adjust; see manual 307652.
Clear; service. See manual 307652.
* 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
Page 12
Service
Disconnecting the Displacement Pump
NOTE: For displacement pump repair instructions,
refer to the separate displacement pump manual
307652, supplied.
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. Flush the pump if possible. Stop the pump at the
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 displacement rod (R). Remove the coupling collars (21).
See Fig. 4.
4. Unscrew the lower locknut (13) and lockwasher
(12) from the return mounting tube (10).
5. Unscrew the swivel union (S) from the supply
mounting tube (11).
Reconnecting the Displacement Pump
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.
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.
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.
4. Tighten the locknuts (13) securely.
5. Remount the pump and connect all hoses.
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.
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
Page 13
Torque to 65–75 ft-lb (88–102 N.m).
1
Apply thread sealant.
2
Lubricate.
3
Service
Model 218747 Shown
14
1
8
2
10
20
6
4
15
3
2
1
2
11
21
13
12
R
S
Fig. 4
3
12
13
06108
307674 13
Page 14
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 Part
No. No. Description Qty
1 210007 AIR MOTOR, President;
used on 218747; see 307157 1
205038 AIR MOTOR, President
used on 237142, 237143, and
237146; see 306982 1
2 190116 ROD, connecting;
5.69” (144.5 mm) long 1
3 218746 PUMP, displacement;
used on 218747; see 307652 1
237140 PUMP, displacement;
used on 237142; see 307652 1
237141 PUMP, displacement;
used on 237143; see 307652 1
237199 PUMP, displacement;
used on 237146; see 307652 1
4 100579 PIN, cotter 1
6 156082 O-RING; nitrile rubber 1
8 166443 NIPPLE, hex, reducing;
3/4 x 1/2 npt 1
10 180986 TUBE, return;
12.812” (325.4 mm) long 1
11 189215 TUBE, supply;
6.75” (171.5 mm) long;
used on 218747, 237142,
and 237143 only 1
112919 TUBE, supply; 1” npt(f) fluid outlet;
6.75” (171.5 mm) long;
used on 237146 only 1
12 118160 LOCKWASHER, ext shakeproof 2
13 171217 NUT, lock; 3/4–11 2
14 171439 NIPPLE, hex, reducing;
1” x 3/4 npt 1
15 158256 UNION; straight adapter;
1/2 npt(m) x 3/8 npsm(f) 1
20 190117 NUT, coupling 1
21 190119 COLLAR, coupling 2
Used on Models 2218747, 237142, and 237143 only.
1
Used on Model 237146 only.
2
8
14
10
11
1
13
12
12
21
20
6
4
2
3
1
15
11
2
14 307674
13
TI0497
Page 15
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,
55 Gallon (200 Liter) Drum Size; PTFE Packed
Ref Part
No. No. Description Qty
1 210007 AIR MOTOR, President;
used on 218795; see 307157 1
205038 AIR MOTOR, President;
used on 237144 and 237145;
see 306982 1
2 190115 ROD, connecting;
18.25” (463.6 mm) long 1
3 218746 PUMP, displacement;
used on 218795; see 307652 1
237140 PUMP, displacement;
used on 237144; see 307652 1
237199 PUMP, displacement;
used on 237145; see 307652 1
4 100579 PIN, cotter 1
6 156082 O-RING; nitrile rubber 1
7 100081 BUSHING; 1/2 npt(m) x 3/8 npt(f);
used on 218795 only 1
8 160032 NIPPLE; 3/4 npt 1
10 180990 TUBE, return;
25.375” (644.5 mm) long 1
11 189216 TUBE, supply;
19.312” (490.52 mm) long;
used on 218795 and 237144 only 1
112918 TUBE, supply; 1” npt(f) fluid outlet;
19.312” (490.52 mm) long;
used on 237145 only 1
12 118160 LOCKWASHER, ext shakeproof 2
13 171217 NUT, lock; 3/4–11 2
15 158256 UNION; straight adapter;
1/2 npt(m) x 3/8 npsm(f);
used on 237144 and 237145 only 1
20 190117 NUT, coupling 1
21 190119 COLLAR, coupling 2
Used on Models 237144 and 237145 only.
1
Used on Model 218795 only (not shown).
2
Used on Models 218795 and 237144 only.
3
Used on Model 237145 only.
4
8
10
13
12
11
21
20
6
4
2
3
3
1
15
or 7
1
2
11
4
12
13
TI0498
307674 15
Page 16
Dimensions
Mounting Hole
Layout
0.375”
(9.52 mm)
diameter
B
2.254”
(57.25 mm)
2.254”
(57.25 mm)
3.188”
(80.97 mm)
A
2.625”
(66.67 mm)
5.250”
3/4 npt(f)
return
C
NOTE: Use mounting gasket 161322.
(133.4 mm)
1” npt(f)
outlet
06088
Model No. A B C
218795 48.88 in.
(1242 mm)
237144,
237145
218747 36.38 in.
237142,
237143,
237146
48.95 in.
(1244 mm)
(924 mm)
36.45 in.
(926 mm)
16.38 in.
(416 mm)
16.45 in.
(418 mm)
16.38 in.
(416 mm)
16.45 in.
(418 mm)
16 307674
06110
32.5 in.
(826 mm)
32.5 in.
(826 mm)
20 in.
(508 mm)
20 in.
(508 mm)
Page 17
Technical Data
Category Data
Ratio 3:1
Maximum fluid working pressure 360 psi (2.5 MPa, 25 bar)
Maximum air input pressure 120 psi (0.8 MPa, 8.3 bar)
Pump cycles per 1 gallon (3.8 liters) 6
Fluid flow at 60 cycles per minute 10 gpm (38 liters/min)
Fluid inlet size 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)
Maximum pump operating temperature 180_F (82_C)
* Sound level at 100 psi, 60 cycles per minute 94 dBa
* Sound power level at 100 psi, 60 cycles per minute 109 dBa
Wetted parts Supply and Return Tubes: Stainless steel
Air Motor Base: Aluminum
Displacement Pump: Refer to manual 307652
* Tested in accordance with ISO 3744.
Fluid Outlet Pressure Chart Air Consumption Chart
psi
bar
400
28
350
24.5
300
21
250
17.5
200
14
150
10.5
FLUID OUTLET PRESSURE
100
7
50
3.5
0
0.0 2.5 5.0 7.5 10.0
gpm
FLUID FLOW (TEST FLUID: NO 10 MOTOR OIL)
cycles per min
15 30 45 60
A
B
C
9.5 19 29 38liters/min
Performance Charts
A 100 psi (7 bar) air pressure
B 70 psi (4.9 bar) air pressure
C 40 psi (2.8 bar) air pressure
scfm
m#/min
40
1.120
35
0.980
30
0.840
25
0.700
20
0.560
15
AIR CONSUMPTION
0.420
10
0.280
5
0.140
0
0.0 2.5 5.0 7.5 10.0
gpm
cycles per min
15 30 45 60
A
B
C
9.5 19 29 38liters/min
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):
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.
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.
2. Follow vertical line up to intersection with selected air consumption curve. Follow left to scale and read air consumption.
307674 17
Page 18
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 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 procedures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
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
18 307674
International Offices: Belgium, China, Japan, Korea
Graco Headquarters: Minneapolis
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 1985, Graco Inc. is registered to ISO 9001
www.graco.com
Revision R, July 2013
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