Graco 308351K User Manual

Instructions

Parts

CARBON STEEL

Check–Mate™ 800 Pumps

With Priming Piston and Severe–Duty Rod and Cylinder

Refer to page 2 for Table of Contents.

US Patent Nos. 5,147,188 and 5,154,532.
Other patents pending.

Important Safety Instructions

Read all warnings and instructions in this manual.
Save these instructions. See page 2 for model

numbers and maximum working pressures.

Models 237265,

246940 and 246941

Models 198466

and 246938

Models 236471

and 246942

308351K

04995

4990B

ti1447a

GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441

Copyright 1995, Graco Inc. is registered to I.S. EN ISO 9001

Table of Contents

List of Models 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation/Maintenance 12. . . . . . . . . . . . . . . . . . . . . . . .

Service

Troubleshooting 17. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Tools 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Disconnecting the Displacement Pump 18. . . . . . . .

Reconnecting the Displacement Pump 19. . . . . . . .

Displacement Pump Service 20. . . . . . . . . . . . . . . . .

Parts 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data and Performance Chart 38. . . . . . . . . . .

Dimensions 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Hole Layout 49. . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 50. . . . . . . . . . . . . . . . . . . . . .

Graco Information 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of Models

Maximum Fluid

Part No. Series Pump Model Ratio

236471 B Kingt 65:1 40 MPa, 403 bar (5850 psi) 0.6 MPa, 6 bar (90 psi)

237265 B Reduced Icing

Quiet Kingt

240945 B Quiet Kingt 65:1 40 MPa, 403 bar (5850 psi) 0.6 MPa, 6 bar (90 psi)

65:1 40 MPa, 403 bar (5850 psi) 0.6 MPa, 6 bar (90 psi)

Working Pressure

Maximum Air
(or Hydraulic*)
Input Pressure

253376 B Quiet Kingt 65:1 40 MPa, 403 bar (5850 psi) 0.6 MPa, 6 bar (90 psi)

237261 A Bulldogr 31:1 21 MPa, 214 bar (3100 psi) 0.7 MPa, 7 bar (100 psi)

241901 A Bulldogr

(55 Gallon/200
Liter Size)

237274 A Reduced Icing

Quiet Bulldogr

237264 A Senatorr 19:1 15 MPa, 157 bar (2280 psi) 0.8 MPa, 8.4 bar (120 psi)

198475 A Quiet Kingt 65:1 40 MPa, 403 bar (5850 psi) 0.6 MPa, 6 bar (90 psi)

198466 A Viscountr II 40 MPa, 403 bar (5850 psi) 10.3 MPa*, 103 bar* (1500 psi*)

246942 A Kingt 65:1 48 MPa, 483 bar (7000 psi) 0.7 MPa, 7 bar (100 psi)

246940 A Bulldogr 31:1 21 MPa, 214 bar (3100 psi) 0.7 MPa, 7 bar (100 psi)

246941 A Senatorr 19:1 15 MPa, 157 bar (2280 psi) 0.8 MPa, 8.4 bar (120 psi)

246938 A Viscountr II 40 MPa, 403 bar (5850 psi) 10.3 MPa*, 103 bar* (1500 psi*)

31:1 21 MPa, 214 bar (3100 psi) 0.7 MPa, 7 bar (100 psi)

31:1 21 MPa, 214 bar (3100 psi) 0.7 MPa, 7 bar (100 psi)

2 308351

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious
injury or death if you do not follow the 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.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.

D Check equipment daily. Repair or replace worn or damaged parts immediately.

D Do not exceed the maximum working pressure stated on the equipment or in the Technical Data

for your equipment. Do not exceed the maximum working pressure of the lowest rated component
in your system.

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 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.

308351 3

WARNING

SKIN INJECTION HAZARD

Spray from the spray gun/dispense valve, leaks or ruptured components can inject fluid into your body
and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on
the skin can also cause serious injury.

D Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-

cal treatment.

D Do not point the gun/valve at anyone or at any part of the body.

D Do not put your hand or fingers over the spray tip/nozzle.

D Do not stop or deflect leaks with your hand, body, glove or rag.

D Do not “blow back” fluid; this is not an air spray system.

D Always have the tip guard and the trigger guard on the gun when spraying.

D Check the gun diffuser operation weekly. Refer to the gun manual.

D Be sure the gun/valve trigger safety operates before spraying.

D Lock the gun/valve trigger safety when you stop spraying.

D Follow the Pressure Relief Procedure on page 12 if the spray tip/nozzle clogs and before clean-

ing, checking or servicing the equipment.

D Tighten all fluid connections before operating the equipment.

D Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately. Do not

repair high pressure couplings; you must replace the entire hose.

D Fluid hoses must have spring guards on both ends, to help protect them from rupture caused by

kinks or bends near the couplings.

MOVING PARTS HAZARD

Moving parts, such as the priming 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 12 to prevent the

equipment from starting unexpectedly.

4 308351

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 6.

D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-

ing/dispensing 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/dispensed.

D Keep the spray/dispense area free of debris, including solvent, rags, and gasoline.

D Electrically disconnect all equipment in the spray/dispense area.

D Extinguish all open flames or pilot lights in the spray/dispense area.

D Do not smoke in the spray/dispense area.

D Do not turn on or off any light switch in the spray/dispense area while operating or if fumes are

present.

D Do not operate a gasoline engine in the spray/dispense 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.

308351 5

Installation

Grounding

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 5.

1. King Pumps: use a ground wire and clamp. See
Fig. 1. Remove the ground screw (Z) and insert
through eye of ring terminal at the end of ground
wire (Y). Fasten ground screw back onto pump
and tighten securely. Connect the other end of the
wire to a true earth ground. Order Part No. 222011
Ground Wire and Clamp.

All other Pumps: use a ground wire and clamp.
See Fig. 2. Loosen the grounding lug locknut (W)
and washer (X). Insert one end of a 1.5 mm2 (12
ga) minimum 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. Order Part
No. 222011 Ground Wire and Clamp.

W

X

Y

Z

0864

Fig. 2

2. Air and fluid hoses: use only electrically conductive
hoses.

3. Air compressor: follow manufacturer’s recommen­dations.

4. Spray gun/dispense valve: 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.

Fig. 1

7. All solvent pails used when flushing: follow your
local code. Use only metal pails, which are con­ductive, placed on a grounded surface. Do not

Z

Y

TI1052

place the pail on a nonconductive surface, such as
paper or cardboard, which interrupts the grounding
continuity.

8. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun/valve firmly to the side of a grounded metal
pail, then trigger the gun/valve.

6 308351

Installation

All Systems

NOTE: Reference numbers and letters in parentheses

in the text refer to the callouts in the figures and parts
drawings.

The Typical Installations shown in Figs. 3 and 4 are
only guides for selecting and installing system compo­nents and accessories. Contact your Graco distributor
for assistance in designing a system to suit your
particular needs.

Accessories are available from Graco. If you supply
your own accessories, be sure they are adequately
sized and pressure–rated to meet the system’s re­quirements.

System Accessories

Air and Fluid Hoses

Be sure all air hoses and fluid hoses are properly sized
and pressure-rated for your system. Use only electri­cally conductive hoses. Fluid hoses must have spring
guards on both ends.

Mounting Accessories (Except 198466, 198475 and

246938)

Mount the pump (A) to suit the type of installation
planned. Fig. 3 on page 8 illustrates a ram-mounted
pump in a multi-gun header system. Pump dimensions
and the mounting hole layout are shown on page 49.

If you are mounting the pump on a ram, refer to the
separate ram manual for installation and operation
instructions. Mounting Kit 222776 is available to mount
the pump on a 55 gallon (200 liter) ram.

308351 7

Installation (Air–Powered Pumps)

KEY

A Pump
B 200 Liter (55 Gallon) Air-Powered Ram
C Main Air Bleed Valve (required, for pump and ram)
D Air Line Lubricator (position only)
E Pump Air Bleed Valve (required, for pump)
F Pump Air Regulator
G Air Manifold
H Electrically Conductive Air Supply Hose
J Air Line Filter
K Air Shutoff Valve (for accessories)
L Fluid Regulator

B

D

M Fluid Drain Valve (required)
N Electrically Conductive Fluid Supply Hose
P Fluid Shutoff Valve
R Gun/Valve Swivel
S Airless Spray Gun or Dispensing Valve
T Ram Air Regulator
U Ram Director Valve
V Pump Runaway Valve (position only)
W Air LIne Drain Valve
Y Ground Wire (required, see page 6 for

installation instructions)

JK

MAIN AIR LINE

FLUID HEADER PIPE
(3 in. Diameter)

Fig. 3

A

Y

T

W

L

P

LP

U

E

F

C

H

N

G

V

S

R

M

N

M

N

M

R

S

05097

8 308351

Installation (Air–Powered Pumps)

WARNING

A main air bleed valve (C), pump air bleed valve
(E), and fluid drain valve (M) are required. These
accessories help reduce the risk of serious injury,
including fluid injection and splashing of fluid in the
eyes or on the skin, and injury from moving parts if
you are adjusting or repairing the pump.

The main air bleed valve (C) shuts off the air to the
pump and ram. The pump air bleed valve (E)
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. Order Part No. 107141.

D A pump runaway valve (V) senses when the

pump is running too fast and automatically shuts off
the air to the motor. A pump which runs too fast can
be seriously damaged. Locate in the position
shown.

D An air manifold (G) has a swivel air inlet. It

mounts to a ram, and has ports for connecting lines
to air accessories, such as the ram air regulator

(T) and ram director valve (U).

D An air line filter (J) removes harmful dirt and

moisture from the compressed air supply. Also,
install a drain valve (W) at the bottom of each air
line drop, to drain off moisture.

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. Order Part No. 210658.

Air Line Accessories

Install the following accessories in the order shown in
Fig. 3, using adapters as necessary:

D An air line lubricator (D) provides automatic air

motor lubrication. Locate in the position shown.

D A main air bleed valve (C) is required in your

system to shut off the air supply to the pump and
ram (see the WARNING above). When closed, the
valve will bleed off all air in the ram and pump, and
the ram will slowly lower. Be sure the valve is easily
accessible from the pump, and is located upstream
from the air manifold (G).

D A pump air bleed valve (E) is required in your

system to relieve air trapped between it and the air
motor when the valve is closed (see the WARNING
at left). Be sure the bleed valve is easily accessible
from the pump, and is located downstream from
the air regulator.

D An air regulator (F) controls pump speed and

outlet pressure by adjusting the air pressure to the
pump. Locate the regulator close to the pump, but
upstream from the pump air bleed valve.

D An air shutoff valve (K) isolates the air line acces-

sories for servicing. Locate upstream from all other
air line accessories.

Fluid Line Accessories

Install the following accessories in the positions shown
in Figs. 3 and 4, using adapters as necessary:

D Install a fluid shutoff valve (P) at each gun/valve

drop, to isolate the gun/valve and fluid accessories
for servicing.

D Install a fluid drain valve (M) near the pump fluid

outlet, and at each gun/valve station. The drain
valves are required in your system to relieve fluid
pressure in the displacement pump, hose and
gun/valve (see the WARNING at left). Drain valves
at the gun/valve stations may be mounted in the
base of a fluid regulator (L), using an adapter.

D A fluid regulator (L) controls fluid pressure to the

gun/valve, and dampens pressure surges.

D A gun or dispense valve (S) dispenses the fluid.

The gun shown in Fig. 3 is a high pressure dispens­ing gun for highly viscous fluids.

D A gun/valve swivel (R) allows freer gun/valve

movement.

308351 9

Installation (Hydraulic–Powered Pumps)

KEY

A Accessory Pump Stand

(P/N 218742)

B Surge Tank (P/N 218509 or

238983)
C 50 mm (2 in.) Diameter Pipe
D Full Flow, Non-Restrictive

Fluid Shutoff Valve
E Fluid Supply Line
F Mix Tank
G Hydraulic Supply Line

Shutoff Valve

H Hydraulic Pressure Gauge
J Flow Control Valve
K Pressure Reducing Valve
L Drain Line
M Hydraulic Return Line

Shutoff Valve
N Accumulator
P Hydraulic Supply Line
Q Hydraulic Return Line
Y Ground Wire (required,

see page 6)

F

K

HM

N

L

G

PQ

J

Fig. 4

ED

A

Y

C

F

Y

B

D

ED

01408

10 308351

Installation (Hydraulic–Powered Pumps)

NOTE: Hydraulic fluid is exhausted from differential

CAUTION

The Hydraulic Power Supply must be kept clean at
all times to avoid damage to the motor and hydraulic
power supply.

1. Blow out hydraulic lines with air and flush thor­oughly before connection to the motor.

2. Plug hydraulic inlets, outlets, and line ends when
disconnecting them for any reason.

Always plug the hydraulic inlets, outlets and lines when
disconnecting them for any reason to avoid introducing
dirt and other contaminants into the system.

Be sure that your hydraulic power supply is equipped
with a suction filter to the hydraulic pump and a system
return line filter of 10 micron size. Carefully follow the
manufacturer’s recommendations on reservoir and
filter cleaning and periodic changes of hydraulic fluid.

hydraulic motors only on the upstroke of the operating
cycle. The oil return line must have at least twice the
flow capacity as the oil supply line. Otherwise, back
pressure on the hydraulic motor piston will slow down
the motor and the fluid displacement pump, resulting in
a loss of pump performance.

On the hydraulic oil supply line (P), install a shutoff
valve (G) to isolate the system for servicing; a fluid
pressure gauge (H) to monitor hydraulic oil pressure to
the motor and avoid overpressurizing the motor or
displacement pump; a pressure- and temperature­compensated flow control valve (J) to prevent the
motor from running too fast; a pressure reducing valve
(K) with a drain line (L) running directly into the hydrau­lic return line (Q); and an accumulator (N) to reduce
the hammering effect caused by the motor reversing
direction.

On the hydraulic return line (Q), install a shutoff valve
(M) for isolating the motor for servicing.

308351 11

Pressure Relief Procedure

Operation

WARNING

WARNING

SKIN INJECTION HAZARD

The system pressure must be manually
relieved to prevent the system from

starting or spraying accidentally. Fluid
under high pressure can be injected through the
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:

D are instructed to relieve the pressure,
D stop spraying/dispensing,
D check or service any of the system equipment,
D or install or clean the spray tip/nozzle.

1. Lock the gun/valve trigger safety.

2. Shut off the power to the pump.

3. In an air-powered system, close the air regulator
and close the bleed-type master air valve.

4. In a hydraulic-powered system, close the hy­draulic supply line shutoff valve first, then the
return line shutoff valve.

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure at left.

The packing nut is torqued at the factory and is ready
for operation. If it becomes loose and there is leaking
from the throat packings, relieve pressure, then torque
the nut to 128–156 N.m (95–115 ft-lb) using the
supplied wrench (109). Do this whenever necessary.
Do not overtighten the packing nut.

109

5. Unlock the gun/valve trigger safety.

6. Hold a metal part of the gun/valve firmly to the side
of a grounded metal pail, and trigger the gun/valve
to relieve pressure.

7. Lock the gun/valve trigger safety.

8. In an air–powered system, open the drain valve
(required in your system), having a container ready
to catch the drainage. Leave the drain valve open
until you are ready to spray/dispense again.

If you suspect that the spray tip/nozzle or hose is
completely clogged, or that pressure has not been fully
relieved after following the steps above, very slowly
loosen the tip guard retaining nut or hose end coupling
and relieve pressure gradually, then loosen completely.
Now clear the tip/nozzle or hose.

Packing Nut/Wet-Cup

Before starting, fill the packing nut (2) 1/3 full with
Graco Throat Seal Liquid (TSL) or compatible solvent.
See Fig. 5.

2

Fig. 5

19

21

2

20

129

Bleed hole must

1

face down.

Torque to 128–156 N.m

2

(95–115 ft-lb).

04995

12 308351

Flush the Pump Before First Use

Operation

WARNING

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 16.

Starting and Adjusting the Pump

WARNING

MOVING PARTS HAZARD

Keep hands and fingers away from the
priming piston (21) during operation and

whenever the pump is charged with air.
The priming piston extends beyond the intake
housing (19) to pull material into the pump and can
amputate a hand or finger caught between it and
the intake housing. Follow the Pressure Relief
Procedure on page 12, before checking, clearing,
or cleaning the priming piston.

COMPONENT RUPTURE HAZARD

To reduce the risk of overpressurizing
your system, which could cause compo­nent rupture and serious injury, never

exceed the Maximum Input Pressure to the pump

(see the Technical Data on pages 38–46).

Air–Powered Systems

1. Supply fluid to the pump, per the requirements of
your system.

2. See Fig. 3. Close the air regulator (F).

3. Open all air bleed valves (C, E).

4. Hold a metal part of the gun/valve (S) firmly to the
side of a grounded metal pail and hold the trigger
open.

5. Slowly open the air regulator until the pump starts.

6. Cycle the pump slowly until all air is pushed out
and the pump and hoses are fully primed.

7. Release the gun/valve trigger and lock the trigger
safety. The pump should stall against pressure.

WARNING

SKIN INJECTION HAZARD

To reduce the risk of fluid injection, do not use
your hand or fingers to cover the bleed hole on the
underside of the bleeder valve body (29) when
priming the pump. Use a crescent wrench to open
and close the bleeder plug (20). Keep your hands
away from the bleed hole.

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.

8. If the pump fails to prime properly, open the
bleeder valve plug (20) slightly. Use the bleed hole,
on the underside of the valve body (29), as a
priming valve until the fluid appears at the hole.
See Fig. 5. Close the plug.

NOTE: When changing fluid containers with the hose
and gun/valve already primed, open the bleeder valve
plug (20), to help prime the pump and vent air before it
enters the hose. Close the plug when all air is elimi­nated.

9. With the pump and lines primed, and with ade­quate air pressure and volume supplied, the pump
will start and stop as you open and close the
gun/valve. In a circulating system, the pump will
speed up or slow down on demand, until the air
supply is shut off.

10. Use the air regulator (F) to control the pump speed
and the fluid pressure. Always use the lowest air
pressure necessary to get the desired results.
Higher pressures cause premature tip/nozzle and
pump wear.

308351 13

Operation

Hydraulic–Powered Systems

Refer to the warnings on page 13.

1. Supply fluid to the pump, per the requirements of
your system.

2. Open the shutoff valves between the pump and
supply tanks.

3. Open the dispensing valve(s) or spray gun(s).

4. To adjust the system, perform the following proce­dure:

a. Turn on the hydraulic power supply.

b. Open the flow control valve all the way.

c. Adjust the pressure–reducing valve until you

get the desired fluid pressure. Run the pump
until all air is purged from the fluid lines.

d. Count the cycle rate of the pump.

e. Close the flow control valve until the cycle rate

and fluid pressure start to drop.

f. Open the flow control valve slightly until the

cycle rate and fluid pressure return to the
desired level. This method of setting the hy­draulic controls ensures proper pump opera­tion and will prevent pump runaway and dam­age if the fluid supply runs out.

g. Close the gun or valve.

14 308351

Notes

308351 15

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 12.

For overnight shutdown, stop the pump at the bottom
of the 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. Refer to Flushing below.

Flushing

WARNING

FIRE AND EXPLOSION HAZARD
Before flushing, read the section FIRE
AND EXPLOSION HAZARD on page

5. Be sure the entire system and flush­ing pails are properly grounded. Refer to
Grounding on page 6.

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 12.

1. Relieve the pressure.

2. Remove the spray tip/nozzle from the gun/valve.

3. Hold a metal part of the gun/valve firmly to the side
of a grounded metal pail.

4. Start the pump. Always use the lowest possible
fluid pressure when flushing.

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.
Always flush the pump before fluid dries on the dis­placement rod.

5. Trigger the gun/valve.

6. Flush the system until clear solvent flows from the
gun/valve.

7. Relieve the pressure.

16 308351

Troubleshooting

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.

1. Relieve the pressure.

2. Check all possible problems and causes before
disassembling the pump.

PROBLEM

Pump fails to operate. Restricted air or hydraulic line or inade-

Pump operates, but
output low on both
strokes.

Pump operates, but
output low on down­stroke.

CAUSE SOLUTION

quate air supply; closed or clogged
valves.

Obstructed fluid hose or gun/valve;
fluid hose ID is too small.

Fluid dried on the displacement rod. Clean; always stop the pump at the bottom of its

Dirty, worn, or damaged motor parts. Clean or repair; see the separate motor manual.

Restricted air or hydraulic line or inade­quate air supply; closed or clogged
valves.

Obstructed fluid hose or gun/valve;
fluid hose ID is too small.

Bleeder valve is open. Close the valve.

Air is leaking into the supply container. Check the ram plate seal.

Fluid is too heavy for pump priming. Use the bleeder valve (see page 13); use a ram.

Held open or worn intake valve or seals. Clear the valve; replace the seals.

Worn packings in the displacement
pump.

Fluid too heavy for pump priming. Use the bleeder valve (see page 13); use a ram.

Held open or worn intake valve or seals. Clear the valve; replace the seals.

Clear any obstructions; check that all valves are
open; increase pressure.

Open, clear*; use a hose with a larger ID.

stroke; keep the wet-cup 1/3 filled with a compat­ible solvent.

Clear any obstructions; check that all valves are
open; increase pressure.

Open, clear*; use a hose with a larger ID.

Replace the packings.

Pump operates, but
output low on upstroke.

THE TROUBLESHOOTING CHART IS CONTINUED ON PAGE 18.

* To determine if the fluid hose or gun is obstructed, follow the Pressure Relief Procedure on page 12. Dis­connect the fluid hose and place a container at the pump fluid outlet to catch any fluid. Turn on the air or hydraulic
power just enough to start the pump. If the pump starts, the obstruction is in the fluid hose or gun.

NOTE: If you experience air motor icing, call your Graco distributor.

Held open or worn piston valve or seals. Clear the valve; replace the seals.

308351 17

Troubleshooting

PROBLEM CAUSE SOLUTION

Erratic or accelerated
pump speed.

Exhausted fluid supply. Refill and prime.

Fluid is too heavy for pump priming. Use the bleeder valve (see page 13 or 14); use a

Held open or worn piston valve or seals. Clear the valve; replace the seals.

Held open or worn priming piston. Clear; service.

Worn packings in the displacement
pump.

Service

Required Tools

D Torque wrench

D Bench vise, with soft jaws

D Rubber mallet

D Hammer

D O-ring pick

D 13 mm (1/2 in.) dia. brass rod

D Set of socket wrenches

D Set of adjustable wrenches

D Pipe wrench

D Packing nut wrench (109, supplied)

D Thread lubricant

D Thread sealant

Disconnecting the Displacement Pump

1. Flush the pump, if possible. Stop the pump at the
bottom of its stroke.

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.

ram.

Replace the packings.

4. Disconnect the displacement pump (106) from the
motor (101) as follows. See Fig. 6. Be sure to note
the relative position of the pump’s fluid outlet (X) to
the motor inlet (Y). If the motor does not require
servicing, leave it attached to its mounting.

CAUTION

Be sure to use at least two people when lifting,
moving, or disconnecting the pump. This pump is too
heavy for one person. If you are disconnecting the
displacement pump from a motor which is still
mounted (for example, on a ram), be sure to support
the displacement pump while it is being discon­nected, to prevent it from falling and causing injury or
property damage. Do this by securely bracing the
pump, or by having at least two people hold it while
another disconnects it.

5. Using an adjustable wrench (or a hammer and
rod), unscrew the coupling nut (104) from the
motor shaft (Z). Do not lose or drop the coupling
collars (105). See Fig. 6.

6. Hold the tie rod flats with a wrench to keep the
rods from turning. Unscrew the nuts (103) from the
tie rods (102). Carefully remove the displacement
pump (106) from the motor (101).

2. Relieve the pressure.

3. Disconnect all hoses from the pump and motor.

18 308351

7. Refer to page 20 for displacement pump service.
To service the motor, refer to the separate motor
manual, supplied.

Service

Reconnecting the Displacement Pump

1. Make sure the coupling nut (104) and the coupling
collars (105) are in place on the displacement rod
(1). See Fig. 6.

2. Use at least two people to hold the displacement
pump while another reconnects it to the motor (see
the CAUTION on page 18). Orient the pump’s fluid
outlet (X) to the air or hydraulic inlet (Y) as was
noted in step 4 under Disconnecting the Dis-
placement Pump. Position the displacement
pump (106) on the tie rods (102).

3. Screw the nuts (103) onto the tie rods (102) and
torque to 68–81 N.m (50–60 ft-lb).

4. Screw the coupling nut onto the motor shaft loose­ly. Hold the motor shaft (Z) flats with a wrench to
keep it from turning. Use an adjustable wrench to
tighten the coupling nut. Torque to 196–210 N.m
(145–155 ft-lb).

Y

102

1

Z

105

104

1

101

2

5. Torque the packing nut (2) to 128–156 N.m
(95–115 ft-lb).

6. Reconnect all hoses. Reconnect the ground wire if
it was disconnected. Fill the wet-cup (2) 1/3 full of
Graco Throat Seal Liquid or compatible solvent.

7. Turn on the power supply. Run the pump slowly to
ensure proper operation.

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.

8. Before returning the pump to production, relieve
the pressure and retorque the packing nut (2) to
128–156 N.m (95–115 ft-lb).

103

1

Fig. 6

2

3

109

4

106

X

Torque to 68–81 N.m

1

(50–60 ft-lb).

Torque to 196–210 N.m

2

(145–155 ft-lb).

Torque to 128–156 N.m

3

(95–115 ft-lb).

Square hole is for use

4

with torque wrench.

04994

308351 19

Displacement Pump Service

Disassembly

When disassembling the pump, lay out all the removed
parts in sequence, to ease reassembly. Clean all parts
with a compatible solvent and inspect them for wear or
damage. Refer to Fig. 9 for a cutaway view of the
pump.

NOTE: Packing Repair Kits are available. See page

36. For the best results, use all the new parts in the kit.
Kit parts are marked with an asterisk, for example (7*).

1. Remove the displacement pump from the motor as
explained on page 18. Place the pump in a vise,
with the outlet housing (9) positioned as shown in
Fig. 8.

2. Hold the flats of the priming piston rod (18) with an
adjustable wrench, and use a second wrench to
unscrew the priming piston seat (22) from the rod.
Slide the priming piston (21) off the rod. Inspect
the inner and outer surfaces of the piston (21) for
scoring, wear, or other damage.

3. Loosen the packing nut (2) using the wrench (109)
supplied.

4. Using a pipe wrench on the hex of the intake
cylinder (19), unscrew it from the intake valve
housing (17). The pump may separate at joints A,
B, or C. See Fig. 8.

NOTE: These instructions are written with the pump
separating at joint A. If it separates at joints B or C,
disassemble it at that joint, place the intake housing
(17) in a vise, and continue with step 5.

5. Unscrew the intake valve housing (17) from the
cylinder (10). Pull the housing off the pump. The
intake check valve assembly (V, see Fig. 7) should
slide down the priming piston rod (18) as you
remove the housing; if it does not slide easily,
firmly tap on the top of the housing (17) with a
rubber mallet to loosen.

DETAIL OF INTAKE CHECK VALVE

17a, b, c

15

39

N

37

38

18

Fig. 7

P

16

05002

V

Fig. 8

20 308351

22

21

18

19

A

17a, b, c

B

10

C

9

2

1

04993

Displacement Pump Service

2

3

See Fig. 10

9

1

See Fig. 12

8

10

29

20

6. Pull the intake seat (37) and seal (38) out the
bottom of the intake valve housing (17). Take care
not to drop the check valve assembly (V) as it
comes free, and set it aside for later. See Fig. 7.

NOTE: If the seat (37) is difficult to remove, insert a
hammer and brass rod through the top of the housing
(17) and drive the seat out.

7. Using a rubber mallet, drive the displacement rod
(1) and the priming piston rod (18) out of the outlet
housing (9) and cylinder (10). Inspect the outer
surfaces of the rods for damage by running a
finger over the surface.

8. Unscrew the packing nut (2). Unscrew the packing
housing (3) and remove the seal (42). Remove the
throat glands and packings (T). See Fig. 10.

See Fig. 7

8

Fig. 9

8

21

22

17a, b, c

19

05002

T

Fig. 10

THROAT PACKING DETAIL

2

3

42*

05002

Model 236611 Displacement Pump Shown

308351 21

Displacement Pump Service

9. Remove the seal (8) from the bottom of the cylin­der (10). See Fig. 12. Shine a light into the cylinder
to examine the inside surface for scoring or dam­age. Only if the cylinder is damaged, or there is

evidence of leaking around the top cylinder
seal (8), unscrew the cylinder from the outlet

housing, using a pipe wrench. Remove the top
cylinder seal.

10. Place the flats of the displacement rod (1) in a
vise. Unscrew the piston (12) from the displace­ment rod; the priming piston rod (18) will come
with it. Slide the piston guide (11) and seat (14) off
the piston (12).

11. It is not necessary to remove the priming piston
rod (18) from the piston (12) unless your inspec­tion reveals damage to either part. To disas­semble, place the piston flats in a vise and un­screw the rod.

12. Place the piston guide (11) in a vise, as shown in
Fig. 11. Using an adjustable wrench, unscrew the
piston seat (14) from the guide. Remove the seal
(13); always replace it with a new one. Inspect the
mating surfaces (M) of the piston (12) and piston
seat (14) for damage or wear. See Fig. 12.

NOTE: The seal (39) is press-fit in the nut (15) and
may require cutting to ease removal.

14. Unscrew the bleeder valve plug (20) completely
from the valve body (29). Clean the valve threads
and the bleed hole. It is not necessary to remove
the valve body from the pump outlet housing (9).

15. Inspect all parts for damage. Clean all parts and
threads with a compatible solvent. Reassemble as
explained on page 23.

14

11

13. To disassemble the intake check valve assembly
(V), place the intake valve body (16) in a vise and
unscrew the packing nut (15). Remove the seal
(39) from the nut, and the glands and packings (P)
from the valve body. Inspect the mating surfaces
(N) of the intake valve body (16) and seat (37) for
damage or wear. See Figs. 7 and 13.

DETAIL OF PISTON CHECK VALVE

1

1

Torque to 125–139 N.m (92–102 ft-lb).

2

Torque to 324–368 N.m (239–271 ft-lb).

3

Lubricate.

2

11

12

M

*8

3

Fig. 11

When reassembling items 11 and 14,

1

apply thread sealant and torque to
approx. 77–85 N.m (57–63 ft-lb).

10

13*

3

14

17a, b, c

03832

Fig. 12

22 308351

18

1

05002

Displacement Pump Service

Reassembly

Fig. 16 shows a cutaway of the entire pump.

1. Lubricate the intake packings and install them in
the valve body (16), with the lips of the v-pack-
ings facing up. Install the v-packings in the order
shown in Fig. 13.

2. With the beveled side facing up, press the intake
valve seal (39*) into the recess of the intake valve
packing nut (15) until it snaps into place. The nose
of the seal should be flush with or slightly recessed
into the face of the packing nut.

3. Place the flats of the valve body (16) in a vise.
Screw the packing nut into the valve body hand­tight. Set the intake housing assembly aside.

1

Lubricate.

2

Lips of v-packings must face up.

Optional Displacement Pump 237945

3

uses all PTFE v-packings (item 24).

4. Lubricate the piston seal (13*) and install it on the
piston seat (14). Apply thread sealant to the
threads of the seat and the piston guide (11).
Screw the guide onto the seat (14). Place the
guide in a vise as shown in Fig. 11 and torque the
seat to 77–85 N.m (57–63 ft-lb).

5. If it was necessary to remove the priming piston
rod (18) from the piston (12), place the flats of the
piston in a vise. Using an adjustable wrench on the
flats of the rod, screw the rod into the piston.
Torque to 125–139 N.m (92–102 ft-lb). Be careful
not to create burrs on the flats of the rod.

6. Place the piston seat/guide assembly onto the
piston (12) so the 45_ beveled seating surfaces
match. Screw the displacement rod (1) into the
piston (12) hand tight, then torque the rod to
324–368 N.m (239–271 ft-lb).

39*

15

23*

2

26*

24*

26*

24*

1

1

1

1

3

2

2

3

2

Fig. 13

25*

16

Model 236611 Displacement Pump Shown

04225

308351 23

Displacement Pump Service

7. If the cylinder (10) was removed from the outlet
housing (9), lubricate the seal (8*) and place it on
the top of the cylinder. (The cylinder is symmetri­cal, so either end can be the top.) Screw the
cylinder into the outlet housing. See Fig. 16.

8. Lubricate the seal (42*) and install it in the groove
on the bottom of the packing housing (3). Screw
the packing housing into the outlet housing (9) and
torque to 176–258 N.m (130–190 ft-lb). See the
Detail in Fig. 16.

9. Lubricate the throat packings and glands, and
install them in the packing housing (3) one at a
time, with the lips of the v-packings facing
down. Install the v-packings in the order shown in
the Detail in Fig. 16. Loosely install the packing nut
(2).

10. Lubricate the displacement rod (1). Slide the rod,
piston assembly, and priming piston rod (18) into
the cylinder (10) from the bottom, until the top of
the rod (1) protrudes from the packing nut (2).

11. Lubricate the seal (8*) and install it on the bottom
of the cylinder (10). Slide the intake valve housing
(17) onto the priming piston rod (18), making
certain that the smooth surface of the valve stop
(VS) is facing down toward the pump intake.
Screw the housing onto the cylinder. See Fig. 16.

12. Lubricate the priming piston rod (18), then slide the
assembled intake valve (V) onto the rod, making
certain that the packing nut (15) goes on the rod
first. Push the valve assembly up the rod, stopping
before it reaches the intake valve housing (17).
See Fig. 14.

13. Hold the valve body (16) steady with a wrench
while using an adjustable wrench to tighten the
packing nut (15). See Fig. 14. Torque to 97–107
N.m (71–79 ft-lb). Use a rubber mallet on the
priming piston rod (18), to drive the valve assem­bly up to the stop (VS).

14. The intake seat (37) is reversible. Inspect both
sides of the seat and install it with the best side
facing into the housing (17). Push it into the hous­ing until it seats securely. Lubricate the seal (38*)
and install in the bevel around the bottom of the
seat. See Fig. 16.

Hold valve body (16) steady.

1

Torque packing nut (15) to
97–107 N.m (71–79 ft-lb).

Fig. 14

18

16

15

1

V

17a, b, c

10

2

1

04992

24 308351

Displacement Pump Service

15. Screw the intake cylinder (19) into the intake
housing (17). Using a pipe wrench on the hex of
the cylinder (19), torque the cylinder to 468–590
N.m (345–435 ft-lb). This will also torque the intake
valve housing (17) and pump cylinder (10) into the
outlet housing (9). See Fig. 15.

16. Screw the bleeder valve plug (20) into the valve
body (29). The plug has two sets of threads. When
reassembling, be sure to screw the plug complete­ly into the valve body. See Fig. 16.

17. Check that the flats of the priming piston rod (18)
are accessible below the intake cylinder (19). If
not, tap on the top of the displacement rod (1) with
a rubber mallet, until the flats are exposed.

22

1

21

18

18. Slide the priming piston (21) onto the rod (18) until
it stops. Hold the rod (18) steady with an adjust­able wrench on the flats, and screw the seat (22)
onto the rod with another wrench. Torque to 77–85
N.m (57–63 ft-lb). See Fig.15.

19. Reconnect the displacement pump to the motor as
explained on page 19.

20. Allow 2 hours for the thread sealant to cure before
returning the pump to service.

19

2

17a, b, c

10

9

1

Torque to 77–85 N.m (57–63 ft-lb).

Torque to 468–590 N.m (345–435 ft-lb).

2

Fig. 15

2

1

04993

308351 25

Displacement Pump Service

For Pumps 198466, 237265 and 236471 only

THROAT PACKING DETAIL

5*

11

6*
4*

11

6*
4*

11

6*
7*

1

3 4

42*

3

2

6

1

3

7

29

20

5

9

8*

3

1

10

1

Piston check valve (see Fig. 12).

2

Intake check valve (see Fig. 13).

3

Lubricate.

4

Lips of v-packings must face down.

5

Screw valve plug (20) completely into valve body (29).

6

Torque to 128–156 N.m (95–115 ft-lb).

7

Torque to 176–258 N.m (130–190 ft-lb).

8

Torque to 468–590 N.m (345–435 ft-lb).

Torque to 125–139 N.m (92–102 ft-lb).

9

10

Torque to 77–85 N.m (57–63 ft-lb).

Optional Displacement Pump 237945

11

uses all PTFE v-packings (item 4).

*8

3

VS

2

17a, b, c

37
38*

3

19

18

9

8

21

22

10

Fig. 16

26 308351

05002

Displacement Pump Service

For Pumps 246938, 246940, 246941 and 246942 only

Servicing the Throat Packings

NOTE: The throat packings are available as a preas-

sembled, pre–lubricated kit. For series B pumps, order
Part No. 241782. For series A pumps order Part No.

237905. Parts included in these kits are marked with
an asterisk, for example (3*). Part No. 237905 includes
items 3, 5 (qty: 1), 6, and 47.

WARNING

To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page12.

1. Relieve the pressure.

2. See Fig. 17. Unscrew the packing nut (2) using a
pipe wrench. Remove the o-ring (6) and washer
(47) from the bottom of the packing housing (3) or
from the outlet housing (9).

3. Place the flats of the packing nut (2) in a vise.
Unscrew the packing housing (3) and discard it
and the packings. Remove the washer (46), seal
(5), and backup washer (45) from the packing nut.

4. The throat repair kit is preassembled. Screw the kit
into the packing nut (2), making sure that the
backup washer (45*), seal (5*), and washer (46*)
are properly positioned on top of the packing
housing (3*), with the lips of the seal facing down.
Torque the packing housing (3*) to 97–106 N.m
(71–78 ft-lb). See Fig. 17.

5. Check that the washer (47*) and o-ring (6*) are
properly installed on the bottom of the packing
housing (3*).

6. Screw the packing nut (2) into the outlet housing
(9). Torque to 190–217 N.m (140–160 ft-lb).

1

Torque to 97–106 N.m (71–78 ft-lb).

2

Torque to 190–217 N.m (140–160 ft-lb).

Lips of u-cup packing must face down.

3

46*

6*

9

2

45*

5*

5*

3*

47*

2

3

3

1

Fig. 17

5142C

308351 27

Parts

Part No. 236471 Pump, Series B, 65:1 Ratio, with King Air Motor

Part No. 246942 Pump, Series A, 65:1 Ratio, with King Air Motor

Part No. 237261 Pump, Series A, 31:1 Ratio, with Bulldog Air Motor

Part No. 246940 Pump, Series A, 31:1 Ratio, with Bulldog Air Motor

Part No. 237264 Pump, Series A, 19:1 Ratio, with Senator Air Motor

Part No. 246941 Pump, Series A, 19:1 Ratio, with Senator Air Motor

Part No. 241901 Pump, Series A, 31:1 Ratio, with Bulldog Air Motor

Ref.

Model 241901 Shown

101

102

110

105

104

109

No. Part No. Description Qty.

101 245111 AIR MOTOR, King

Used on Model 236471 and 246942
only. See 309347 for parts. 1

208356 AIR MOTOR, Bulldog

Used on Model 237261, 246940 and

241901. See 307049 for parts. 1

217540 AIR MOTOR, Senator

Used on Model 237264 and 246941
only. See 307592 for parts. 1

102 190000 ROD, tie; 224 mm (8.82”)

shoulder to shoulder 3

190437 ROD, tie; 380 mm (14.96”)

shoulder to shoulder

Used on Model 241901 only 3
103 106166 NUT, hex; M16 x 2.0 3
104 186925 NUT, coupling 1
105 184129 COLLAR, coupling 2
106 236611 PUMP, displacement

See page 34 for parts 1

246939 PUMP, displacement

Used on Model 246942, 246940 and

246941 only. See page 32 for parts. 1

109 112887 WRENCH, spanner 1
110 190436 ROD, connecting

Used on Model 241901 only 1

103

28 308351

106

04994B

Parts

Part No. 198475 Pump, Series A, 65:1 Ratio, with Quiet King Air Motor

Ref.
No. Part No. Description Qty.

101 235525 AIR MOTOR, Quiet King

See 309348 for parts 1

102 198476 ROD, tie; 271 mm (10.67”)

shoulder to shoulder 3
103 106166 NUT, hex; M16 x 2.0 3
104 186925 NUT, coupling 1
105 184129 COLLAR, coupling 2
106 198469 PUMP, displacement

See page 34 for parts 1
109 112887 WRENCH, spanner 1
110 198465 FITTING, 1” npt 1
111 198477 ADAPTER 1
112 109482 PACKING, o–ring, fluoroelastomer 1
113 198478 KIT, accessory, intake and exhaust 1

113

102

101

111

105

104

109

110

103

112

106

ti1449a

308351 29

Parts

Part No. 198466 Pump, Series A, with Viscount II Hydraulic Motor

Part No. 246938 Pump, Series A, with Viscount II Hydraulic Motor

Ref.

111

No. Part No. Description Qty.

102

103

101

105

104

106

110

112

109

101 198468 MOTOR, Viscount II

See 307158 for parts 1

102 198471 ROD, tie; 235 mm (9.25”)

shoulder to shoulder 3
103 106166 NUT, hex; M16 x 2.0 3
104 186925 NUT, coupling 1
105 184129 COLLAR, grounding 2
106 198469 PUMP, displacement

Used on Model 198466 only.

See page 34 for parts 1

246939 PUMP, displacement

Used on Model 246938 only.

See page 32 for parts 1
109 112887 WRENCH, spanner 1
110 198473 FITTING, reducer 1
111 198472 FITTING, reducer 1
112 198465 FITTING, 1” npt 1
113 109482 PACKING, o–ring, fluoroelastomer 1

113

ti1446a

30 308351

Parts

Part No. 237265 Pump, Series B, 65:1 Ratio, with Reduced Icing Quiet King Air Motor

Part No. 240945 Pump, Series B, 65:1 Ratio, with Quiet King Air Motor

Part No. 253376 Pump, Series B, 65:1 Ratio, with Quiet King Air Motor

Part No. 237274 Pump, Series A, 31:1 Ratio, with Reduced Icing Quiet Bulldog Air Motor

Ref.

Model 237265 Shown

101

105

102104

No. Part No. Description Qty.

101 245112 AIR MOTOR,

Reduced Icing Quiet King

Used on Model 237265 only

See 309348 for parts 1

220106 AIR MOTOR, Quiet King

Used on Models 240945 and 253376
only; See 309348 for parts 1

237001 AIR MOTOR,

Reduced Icing Quiet Bulldog

Used on Model 237274 only

See 307304 for parts 1

102 190000 ROD, tie; 224 mm (8.82”)

shoulder to shoulder 3
103 106166 NUT, hex; M16 x 2.0 3
104 186925 NUT, coupling 1
105 184129 COLLAR, coupling 2
106 236611 PUMP, displacement

See page 34 for parts 1

237885 PUMP, displacement

Used on Model 253376 only

See manual 308570 for parts 1
109 112887 WRENCH, spanner 1

106

109

103

04991B

308351 31

Displacement Pump Parts

Part No. 246939, Series A,

Ref Part
No. No. Description Qty

1 189317 ROD, displacement; stainless steel 1
2 237799 PACKING NUT/WET-CUP;

carbon steel 1

3* 190585 HOUSING, throat seal;

carbon steel 1

5* 113021 SEAL, u–cup, throat;

PTFE with stainless steel spring 2
6* 106258 O–RING; fluoroelastomer 1
8 109499 SEAL, cylinder; PTFE 2
9 237567 HOUSING, outlet; ductile iron 1
10 189437 CYLINDER, pump; stainless steel 1
11 189438 GUIDE, piston; stainless steel 1
12 189439 PISTON; stainless steel 1
13 189440 SEAL, piston; UHMWPE; 1
14 189441 SEAT, piston; stainless steel 1
15 189727 NUT, packing, intake valve;

carbon steel 1
16 189514 VALVE BODY, intake; chrome plated

stainless steel 1
17a 189442 HOUSING, intake; ductile iron 1
17bY 184090 LABEL, warning 1
17c 100508 SCREW, drive 2
18 184400 ROD, priming piston; stainless steel 1
19 189447 CYLINDER, intake; ductile iron 1

Ref Part
No. No. Description Qty

20 190128 PLUG, bleeder valve; carbon steel 1
21 276378 PISTON, priming; stainless steel 1
23 184246 GLAND, intake valve, male;

carbon steel 1
24 109301 V–PACKING, intake valve; PTFE 2
25 184196 GLAND, intake valve, female;

carbon steel 1
26 109251 V–PACKING, intake valve; UHMWPE 2
29 165702 BODY, bleeder valve; carbon steel 1
30Y 172479 TAG, warning (not shown) 1
37 189446 SEAT, intake valve; chrome plated

stainless steel 1
38 189492 SEAL, intake; PTFE 1
39 189724 SEAL, intake valve; UHMWPE; 1
42 166073 SEAL; PTFE 1
43* 195233 WASHER; seal backup 1
44* 195234 WASHER; scraper 1
45* 195232 WASHER; rod scraper 1

* These parts are included in Throat Repair Kit 241782,

which may be purchased separately.

Y Replacement Danger and Warning labels, tags and cards

are available at no cost.

32 308351

Displacement Pump Parts

2

*43

*44

*45

*6

*3

*5

*5

29

20

11

13

14

12

1

26

10

8

39
15

23

24

25
16

37

38

19

18

21

22

9

17a, b, c

04989

308351 33

Displacement Pump Parts

Part No. 236611, 198469 and 237945; Series A

NOTE: Refer to page 36 for the different packing configurations available.

Ref Part
No. No. Description Qty

Ref Part
No. No. Description Qty

1 189317 ROD, displacement; stainless steel 1
2 222995 PACKING NUT/WET-CUP;

carbon steel 1

3 189641 HOUSING, throat packing;

carbon steel 1
8* 109499 SEAL, cylinder; PTFE 2
9 237567 HOUSING, outlet; ductile iron 1
10 189437 CYLINDER, pump; stainless steel 1
11 189438 GUIDE, piston; stainless steel 1
12 189439 PISTON; stainless steel 1
13* 189440 SEAL, piston; UHMWPE;

Used on Models 236611 and 198469 1

190015 SEAL, piston; PTFE;

Used on Model 237945 only 1
14 189441 SEAT, piston; stainless steel 1
15 189727 NUT, packing, intake valve;

carbon steel 1
16 189514 VALVE BODY, intake; chrome plated

stainless steel 1
17a 189442 HOUSING, intake; ductile iron 1
17bY 184090 LABEL, warning 1
17c 100508 SCREW, drive 2

18 184400 ROD, priming piston; stainless steel 1
19 189447 CYLINDER, intake; ductile iron 1

198470 CYLINDER, intake; carbon steel

Used on Model 198469 1
20 190128 PLUG, bleeder valve; carbon steel 1
21 276378 PISTON, priming; stainless steel 1
22 190241 SEAT, priming piston; stainless steel 1
29 165702 BODY, bleeder valve; carbon steel 1
30Y 172479 TAG, warning (not shown) 1
37 189446 SEAT, intake valve; chrome plated

stainless steel 1
38* 189492 SEAL, intake; PTFE 1
39* 189724 SEAL, intake valve; UHMWPE;

Used on Models 236611 and 198469 1

189725 SEAL, intake valve; PTFE;

Used on Model 237945 only 1
42* 166073 SEAL; PTFE 1

* These parts are included in the pump repair kit. See page

36 for the applicable kit for your pump.

Y Replacement Danger and Warning labels, tags and cards

are available at no cost.

34 308351

Displacement Pump Parts

2

Throat

Packing Stack.

See page 36.

3

*42

29

20

*8

11

*13

14

12

1

10

39*
15

Intake
Packing Stack.
See page 36.

16

37

38*

19

18

21

22

9

17a, b, c

04989

308351 35

Displacement Pump Parts

Part No. 236611 and 198469, Series A,
Standard UHMWPE/PTFE Packed Displacement Pump

Ref Part
No. No. Description Qty

4* 109306 V-PACKING, throat; PTFE 2
5* 184201 GLAND, throat, female; carbon steel 1
6* 109256 V-PACKING, throat; UHMWPE 3
7* 184251 GLAND, throat, male; carbon steel 1
23* 184246 GLAND, intake valve, male;

carbon steel 1
24* 109301 V-PACKING, intake valve; PTFE 2
25* 184196 GLAND, intake valve, female;

carbon steel 1
26* 109251 V-PACKING, intake valve; UHMWPE 2

* These parts are included in Repair Kit 222864, which may

be purchased separately. See page 34 for additional parts
included in the kit.

THROAT PACKINGS:
LIPS FACE DOWN

*5

*6

*7

LUBRICATE PACKINGS

4*

Part No. 237945, Series A, Optional PTFE Packed Displacement Pump

Ref Part
No. No. Description Qty

4* 109306 V-PACKING, throat; PTFE 5
5* 184201 GLAND, throat, female; carbon steel 1
7* 184251 GLAND, throat, male; carbon steel 1
23* 184246 GLAND, intake valve, male;

carbon steel 1
24* 109301 V-PACKING, intake valve; PTFE 4
25* 184196 GLAND, intake valve, female;

carbon steel 1

THROAT PACKINGS:
LIPS FACE DOWN

*5

*4

LUBRICATE PACKINGS

INTAKE PACKINGS:
LIPS FACE UP

*23

*26

*25

INTAKE PACKINGS:
LIPS FACE UP

*23

*24

*25

24*

04989

36 308351

*7

04989

* These parts are included in Repair Kit 222865, which may

be purchased separately. See page 34 for additional parts
included in the kit.

Notes

308351 37

Technical Data

(Model 236471 and 246942 King Pumps)

WARNING

Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.

Category Data

Ratio 65:1

Maximum fluid working pressure 236471: 40 MPa, 403 bar (5850 psi)

246942: 48 MPa, 483 bar (7000 psi)

Maximum air input pressure 236471: 0.6 MPa, 6 bar (90 psi)

246942: 0.7 MPa, 7 bar (100 psi)

Pump cycles per 3.8 liters (1 gal.) 21

Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)

Air motor piston effective area 506 cm@ (78.5 in.@)

Stroke length 120 mm (4.75 in.)

Displacement pump effective area 8 cm@ (1.24 in.@)

Maximum pump operating temperature 82_C (180_F)

Air inlet size 3/4 npsm(f)

Fluid outlet size 1” npt(f)

Weight approx. 73 kg (160 lb)

Displacement pump weight approx. 37 kg (81 lb)

Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;

304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene

Sound Pressure Levels dB(A)

(measured at 1 meter from unit)

Input Air Pressures at 15 cycles per minute

Air Motor 0.3 MPa, 2.8 bar (40 psi) 0.5 MPa, 4.8 bar (70 psi) 0.6 MPa, 6.2 bar (90 psi)

King 78.8 dB(A) 82.7 dB(A) 90.5 dB(A)

Sound Power Levels dB(A)

(tested in accordance with ISO 9614–2)

Input Air Pressures at 15 cycles per minute

Air Motor 0.3 MPa, 2.8 bar (40 psi) 0.5 MPa, 4.8 bar (70 psi) 0.6 MPa, 6.2 bar (90 psi)

King 86.5 dB(A) 88.8 dB(A) 97.7 dB(A)

38 308351

Technical Data

(Model 236471 and 246942 King Pumps)

Performance Charts

To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow

(lpm/gpm) and operating air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.

A 0.6 MPa, 6.2 bar (90 psi) air pressure
B 0.5 MPa, 4.9 bar (70 psi) air pressure
C 0.3 MPa, 2.8 bar (40 psi) air pressure

Test Fluid: No. 10 Weight Oil

To find Pump Air Consumption (m#/min or scfm) at a specific fluid

flow (lpm/gpm) and air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Read vertical line up to intersection with selected air consumption
curve (dashes). Follow left to scale to read air consumption.

psi

MPa, bar

6000

42, 420

4000

28, 280

2000

14, 140

FLUID PRESSURE

0

gpm

liters/minute

psi

MPa, bar

6000

42, 420

4000

28, 280

2000

14, 140

FLUID PRESSURE

0

gpm

liters/minute

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Test Fluid: 4 Million CPS Weldable Rubber Base Sealer

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Air Consumption

scfm

m#/min

300

8.40

200

5.60

100

2.80

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A

B

C

3.8 7.6 11.4

Air Consumption

scfm

m#/min

300

8.40

200

5.60

100

2.80

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A

B

C

3.8 7.6 11.4

308351 39

Technical Data

(Models 240945, 253376, and 198475 Quiet King Pump and

Model 237265 Reduced Icing Quiet King Pump)

WARNING

Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.

Category Data

Ratio 65:1

Maximum fluid working pressure 40 MPa, 403 bar (5850 psi)

Maximum air input pressure 0.6 MPa, 6 bar (90 psi)

Pump cycles per 3.8 liters (1 gal.) 21

Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)

Air motor piston effective area 506 cm@ (78.5 in.@)

Stroke length 120 mm (4.75 in.)

Displacement pump effective area 8 cm@ (1.24 in.@)

Maximum pump operating temperature 82_C (180_F)

Air inlet size Models 240945, 253376, and 237265: 3/4 npsm(f)

Model 198475: G1/2

Fluid outlet size 1” npt(f)

Weight approx. 73 kg (160 lb)

Displacement pump weight approx. 37 kg (81 lb)

Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;

304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene
Model 253376: See manual 308570

Sound Pressure Levels dB(A)

(measured at 1 meter from unit)

Input Air Pressures at 15 cycles per minute

Air Motor 0.3 MPa, 2.8 bar (40 psi) 0.5 MPa, 4.8 bar (70 psi) 0.6 MPa, 6.2 bar (90 psi)

Quiet King 77.9 dB(A) 79.2 dB(A) 87.5 dB(A)

Sound Power Levels dB(A)

(tested in accordance with ISO 9614–2)

Input Air Pressures at 15 cycles per minute

Air Motor 0.3 MPa, 2.8 bar (40 psi) 0.5 MPa, 4.8 bar (70 psi) 0.6 MPa, 6.2 bar (90 psi)

Quiet King 85.2 dB(A) 86.6 dB(A) 95.2 dB(A)

40 308351

Technical Data

(Models 240945, 253376, and 198475 Quiet King Pump and

Model 237265 Reduced Icing Quiet King Pump)

Performance Charts

To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow

(lpm/gpm) and operating air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.

A 0.6 MPa, 6.2 bar (90 psi) air pressure
B 0.5 MPa, 4.9 bar (70 psi) air pressure
C 0.3 MPa, 2.8 bar (40 psi) air pressure

Test Fluid: No. 10 Weight Oil

To find Pump Air Consumption (m#/min or scfm) at a specific fluid

flow (lpm/gpm) and air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Read vertical line up to intersection with selected air consumption
curve (dashes). Follow left to scale to read air consumption.

psi

MPa, bar

6000

42, 420

4000

28, 280

2000

14, 140

FLUID PRESSURE

0

gpm

liters/minute

psi

MPa, bar

6000

42, 420

4000

28, 280

2000

14, 140

FLUID PRESSURE

0

gpm

liters/minute

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Test Fluid: 4 Million CPS Weldable Rubber Base Sealer

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Air Consumption

scfm

m#/min

300

8.40

200

5.60

100

2.80

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A

B

C

3.8 7.6 11.4

Air Consumption

scfm

m#/min

300

8.40

200

5.60

100

2.80

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A
B
C

3.8 7.6 11.4

308351 41

Technical Data

(Model 237261, 246940 and 241901 Bulldog Pumps)

WARNING

Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.

Category Data

Ratio 31:1

Maximum fluid working pressure 21 MPa, 214 bar (3100 psi)

Maximum air input pressure 0.7 MPa, 7 bar (100 psi)

Pump cycles per 3.8 liters (1 gal.) 21

Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)

Air motor piston effective area 248 cm@ (38 in.@)

Stroke length 120 mm (4.75 in.)

Displacement pump effective area 8 cm@ (1.24 in.@)

Maximum pump operating temperature 82_C (180_F)

Air inlet size 3/4 npsm(f)

Fluid outlet size 1” npt(f)

Weight approx. 73 kg (160 lb)

Displacement pump weight approx. 37 kg (81 lb)

Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;

304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene

Sound Pressure Levels dB(A)

(measured at 1 meter from unit)

Input Air Pressures at 15 cycles per minute

0.28 MPa, 2.8 bar

Air Motor

Bulldog 82.4 dB(A) 87.3 dB(A) 88.5 dB(A) 90.0 dB(A)

Air Motor

Bulldog 91.6 dB(A) 95.9 dB(A) 97.4 dB(A) 98.1 dB(A)

(40 psi)

Sound Power Levels dB(A)

(tested in accordance with ISO 9614–2)

0.28 MPa, 2.8 bar
(40 psi)

0.48 MPa, 4.8 bar
(70 psi)

Input Air Pressures at 15 cycles per minute

0.48 MPa, 4.8 bar
(70 psi)

0.63 MPa, 6.3 bar
(90 psi)

0.63 MPa, 6.3 bar
(90 psi)

0.7 MPa, 7 bar
(100 psi)

0.7 MPa, 7 bar
(100 psi)

42 308351

Technical Data

(Model 237261, 246940 and 241901 Bulldog Pump)

Performance Charts

To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow

(lpm/gpm) and operating air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.

A 0.7 MPa, 7 bar (100 psi) air pressure
B 0.5 MPa, 4.9 bar (70 psi) air pressure
C 0.3 MPa, 2.8 bar (40 psi) air pressure

Test Fluid: No. 10 Weight Oil

To find Pump Air Consumption (m#/min or scfm) at a specific fluid

flow (lpm/gpm) and air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Read vertical line up to intersection with selected air consumption
curve (dashes). Follow left to scale to read air consumption.

psi

MPa, bar

3000

21, 210

2000

14, 140

1000

7, 70

FLUID PRESSURE

0

gpm

liters/minute

psi

MPa, bar

3000

21, 210

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Test Fluid: 4 Million CPS Weldable Rubber Base Sealer

Fluid Outlet Pressure

cycles per minute

10 30

A

20 40 50

Air Consumption

scfm

m#/min

150

4.20

100

2.80

50

1.40

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A

B

C

3.8 7.6 11.4

Air Consumption

scfm

m#/min

150

4.20

cycles per minute

10 30

20 40 50

2000

14, 140

1000

7, 70

FLUID PRESSURE

0

0.0 0.5 1.0 1.5 2.0 2.5

gpm

liters/minute

B

C

3.8 7.6 9.5

5.71.9

liters/minute

100

2.80

50

1.40

AIR CONSUMPTION

0

0.0 0.5 1.0 1.5 2.0 2.5

gpm

3.8 7.6 9.55.71.9

A

B

C

308351 43

Technical Data

(Model 237274 Reduced Icing Quiet Bulldog Pump)

WARNING

Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.

Category Data

Ratio 31:1

Maximum fluid working pressure 21 MPa, 214 bar (3100 psi)

Maximum air input pressure 0.7 MPa, 7 bar (100 psi)

Pump cycles per 3.8 liters (1 gal.) 21

Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)

Air motor piston effective area 248 cm@ (38 in.@)

Stroke length 120 mm (4.75 in.)

Displacement pump effective area 8 cm@ (1.24 in.@)

Maximum pump operating temperature 82_C (180_F)

Air inlet size 3/4 npsm(f)

Fluid outlet size 1” npt(f)

Weight approx. 73 kg (160 lb)

Displacement pump weight approx. 37 kg (81 lb)

Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;

304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene

Sound Pressure Levels dB(A)

(measured at 1 meter from unit)

Input Air Pressures at 15 cycles per minute

0.28 MPa, 2.8 bar

Air Motor

Reduced Icing Quiet Bulldog 81.5 dB(A) 83.6 dB(A) 85.6 dB(A) 85.8 dB(A)

Air Motor

Reduced Icing Quiet Bulldog 90.2 dB(A) 93.5 dB(A) 94.9 dB(A) 93.3 dB(A)

(40 psi)

Sound Power Levels dB(A)

(tested in accordance with ISO 9614–2)

0.28 MPa, 2.8 bar
(40 psi)

0.48 MPa, 4.8 bar
(70 psi)

Input Air Pressures at 15 cycles per minute

0.48 MPa, 4.8 bar
(70 psi)

0.63 MPa, 6.3 bar
(90 psi)

0.63 MPa, 6.3 bar
(90 psi)

0.7 MPa, 7 bar
(100 psi)

0.7 MPa, 7 bar
(100 psi)

44 308351

Technical Data

(Model 237274 Reduced Icing Quiet Bulldog Pump)

Performance Charts

To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow

(lpm/gpm) and operating air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.

A 0.7 MPa, 7 bar (100 psi) air pressure
B 0.5 MPa, 4.9 bar (70 psi) air pressure
C 0.3 MPa, 2.8 bar (40 psi) air pressure

Test Fluid: No. 10 Weight Oil

To find Pump Air Consumption (m#/min or scfm) at a specific fluid

flow (lpm/gpm) and air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Read vertical line up to intersection with selected air consumption
curve (dashes). Follow left to scale to read air consumption.

psi

MPa, bar

3000

21, 210

2000

14, 140

1000

7, 70

FLUID PRESSURE

0

gpm

liters/minute

psi

MPa, bar

3000

21, 210

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Test Fluid: 4 Million CPS Weldable Rubber Base Sealer

Fluid Outlet Pressure

cycles per minute

10 30

A

20 40 50

Air Consumption

scfm

m#/min

150

4.20

100

2.80

50

1.40

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A

B

C

3.8 7.6 11.4

Air Consumption

scfm

m#/min

150

4.20

cycles per minute

10 30

20 40 50

2000

14, 140

1000

7, 70

FLUID PRESSURE

0

0.0 0.5 1.0 1.5 2.0 2.5

gpm

liters/minute

B

C

3.8 7.6 9.5

5.71.9

liters/minute

100

2.80

50

1.40

AIR CONSUMPTION

0

0.0 0.5 1.0 1.5 2.0 2.5

gpm

3.8 7.6 9.55.71.9

A

B

C

308351 45

Technical Data

(Model 237264 and 246941 Senator Pumps)

WARNING

Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.

Category Data

Ratio 19:1

Maximum fluid working pressure 15 MPa, 157 bar (2280 psi)

Maximum air input pressure 0.8 MPa, 8.4 bar (120 psi)

Pump cycles per 3.8 liters (1 gal.) 21

Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)

Air motor piston effective area 154 cm@ (24 in.@)

Stroke length 120 mm (4.75 in.)

Displacement pump effective area 8 cm@ (1.24 in.@)

Maximum pump operating temperature 82_C (180_F)

Air inlet size 3/4 npsm(f)

Fluid outlet size 1” npt(f)

Weight approx. 73 kg (160 lb)

Displacement pump weight approx. 37 kg (81 lb)

Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;

304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene

Sound Pressure Levels dB(A)

(tested at 1 meter from motor)

Input Air Pressures at 15 cycles per minute

40 psi

Air Motor

Standard Senator 84.3 dB(A) 87.8 dB(A) 89.8 dB(A) 91.2 dB(A)

Air Motor

Standard Senator 91.6 dB(A) 94.6 dB(A) 96.4 dB(A) 97.3 dB(A)

(2.8 bar, 280 kPa)

Sound Power Levels dB(A)

(tested in accordance with ISO 9614)

40 psi
(2.8 bar, 280 kPa)

70 psi
(4.8 bar, 480 kPa)

Input Air Pressures at 15 cycles per minute

70 psi
(4.8 bar, 480 kPa)

90 psi
(6 bar, 600 kPa)

90 psi
(6 bar, 600 kPa)

100 psi
(7 bar, 700 kPa)

100 psi
(7 bar, 700 kPa)

46 308351

Technical Data

(Model 237264 and 246941 Senator Pumps)

Performance Charts

To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow

(lpm/gpm) and operating air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.

A 0.8 MPa, 8.4 bar (120 psi) air pressure
B 0.7 MPa, 7 bar (100 psi) air pressure
C 0.5 MPa, 4.9 bar (70 psi) air pressure

Test Fluid: No. 10 Weight Oil

To find Pump Air Consumption (m#/min or scfm) at a specific fluid

flow (lpm/gpm) and air pressure (psi/MPa/bar):

1. Locate desired flow along bottom of chart.

2. Read vertical line up to intersection with selected air consumption
curve (dashes). Follow left to scale to read air consumption.

psi

MPa, bar

3000

21, 210

2000

14, 140

1000

7, 70

FLUID PRESSURE

0

gpm

liters/minute

psi

MPa, bar

3000

21, 210

Fluid Outlet Pressure

cycles per minute

21 42 63

A

B

C

0123

3.8 7.6 11.4

liters/minute

Test Fluid: 4 Million CPS Weldable Rubber Base Sealer

Fluid Outlet Pressure

cycles per minute

10 30

20 40 50

Air Consumption

scfm

m#/min

150

4.20

100

2.80

50

1.40

AIR CONSUMPTION

0

0123

gpm

cycles per minute

21 42 63

A

B

C

3.8 7.6 11.4

Air Consumption

scfm

m#/min

150

4.20

cycles per minute

10 30

20 40 50

2000

14, 140

1000

7, 70

FLUID PRESSURE

0

0.0 0.5 1.0 1.5 2.0 2.5

gpm

liters/minute

A

C

3.8 7.6 9.5

5.71.9

liters/minute

100

2.80

50

1.40

AIR CONSUMPTION

0

0.0 0.5 1.0 1.5 2.0 2.5

gpm

3.8 7.6 9.55.71.9

A

C

308351 47

Technical Data

(Model 198466 and 246938 Viscount II Pumps)

WARNING

Be sure that all fluids and solvents used are chemically compatible with the
Wetted Parts listed below. Always read the manufacturer’s literature before
using fluid or solvent in this pump.

Category Data

Maximum fluid working pressure 40 MPa, 403 bar (5850 psi)

Maximum hydraulic fluid input pressure 10.3 MPa, 103 bar (1500 psi)

Pump cycles per 3.8 liters (1 gal.) 21

Fluid flow at 60 cycles/min 10.6 liters/min (2.8 gpm)

Hydraulic motor piston effective area 31.6 cm@ (4.9 in.@)

Stroke length 120 mm (4.75 in.)

Displacement pump effective area 8 cm@ (1.24 in.@)

Maximum pump operating temperature 82_C (180_F)

Hydraulic fluid inlet size G1/2

Fluid outlet size 1” npt(f)

Weight approx. 80 kg (177 lb)

Displacement pump weight approx. 37 kg (81 lb)

Wetted parts Carbon Steel; Chrome, Zinc, and Nickel Plating;

304, 316, 440, and 17–4 PH Grades of Stainless Steel;
Alloy Steel; Ductile Iron; PTFE; Glass-Filled PTFE;
Ultra-High Molecular Weight Polyethylene

Sound Pressure Levels dB(A)

(measured at 1 meter from unit)

Hydraulic
Motor

Viscount II 88 dB(A)

Input Hydraulic Pressures at 25 cycles/min

10 MPa, 100 bar (1450 psi)

Hydraulic
Motor

Viscount II 103 dB(A)

Sound Power Levels dB(A)

(tested in accordance with ISO 3744)

Input Hydraulic Pressures at 25 cycles/min

10 MPa, 100 bar (1450 psi)

48 308351

Dimensions and Mounting Hole Layout

Model 236471 Shown

G

E

All Models, except 198466 and 246938

94.28 mm
(3.712”)

B

101.6 mm
(4.0”)

A

94.28 mm
(3.712”)

50.8 mm
(2.0”)

Three M16 x

2.0 Holes

88 mm
(3.464”)

11.1 mm
(0.437”)
DIA (4)

0653

C

Model 198466 and 246938

D

F

188.4 mm
(7.42 in.)

04995

11.1 mm

(0.437 in.)
DIA (4)

Part No. A B C D E F G

236471
246942

237265
240945

1376.7 mm
(54.20 in.)

1383.0 mm
(54.33 in.)

583.0 mm
(22.95 in.)

589.6 mm
(23.21 in.)

793.7 mm
(31.25 in.)

793.7 mm
(31.25 in.)

728.5 mm
(28.68 in.)

728.5 mm
(28.68 in.)

257.0 mm
(10.12 in.)

257.0 mm
(10.12 in.)

1 in. npt(f) 3/4 npsm(f)

1 in. npt(f) 3/4 npsm(f)

253376

237261
246940

241901 1494 mm

237274 1388.0 mm

237264
246941

198466
246938

198475 1339.7 mm

1338.0 mm
(52.68 in.)

(58.82 in.)

(54.65 in.)

1341.0 mm
(52.80 in.)

1438.86 mm
(56.65 in.)

(52.74 in.)

544.0 mm
(21.42 in.)

544.0 mm
(21.42 in.)

595.0 mm
(23.43 in.)

548.0 mm
(21.57 in.)

645.16 mm
(25.4 in.)

546.0 mm
(21.5 in.)

793.7 mm
(31.25 in.)

949.0 mm
(37.39 in.)

793.7 mm
(31.25 in.)

793.7 mm
(31.25 in.)

793.7 mm
(31.25 in.)

793.7 mm
(31.25 in.)

728.5 mm
(28.68 in.)

884.0 mm
(34.82 in.)

728.5 mm
(28.68 in.)

728.5 mm
(28.68 in.)

728.5 mm
(28.68 in.)

728.5 mm
(28.68 in.)

257.0 mm
(10.12 in.)

413.0 mm
(16.26 in.)

257.0 mm
(10.12 in.)

257.0 mm
(10.12 in.)

257.0 mm
(10.12 in.)

257.0 mm
(10.12 in.)

1 in. npt(f) 3/4 npsm(f)

1 in. npt(f) 3/4 npsm(f)

1 in. npt(f) 3/4 npsm(f)

1 in. npt(f) 3/4 npsm(f)

1 in. npt(f) G 1/2

1 in. npt(f) G 1/2

287.2 mm
(11.31 in.)

04508

308351 49

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

TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers

to identify the distributor closest to you:

1–800–328–0211 Toll Free

612–623–6921

612–378–3505 Fax

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.

50 308351

Graco Headquarters: Minneapolis

MM 308351

International Offices: Belgium, Korea, China, Japan

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

www.graco.com

PRINTED IN USA 308351K 05/1995, Revised 03/2006