Stainless Steel Dura-Flo 900 Pumps with Severe-Duty

Stainless Steel Dura-Flo 900 Pumps with Severe-Duty
Instructions – Parts List
STAINLESS STEEL
Dura–Flo 900t Pumps
308354H
With Severe–Duty Rod and Cylinder
U.S. Patent No. 5,456,583
Foreign 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.
Model 237286
04275B
Model 237287
04143B
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 2002, Graco Inc. is registered to I.S. EN ISO 9001
List of Models
Pump Part No.
and Series
Maximum Fluid
Working Pressure
Maximum Air
Input Pressure
56:1
38.6 MPa, 386 bar
(5600 psi)
0.7 MPa, 7 bar
(100 psi)
Bulldog
28:1
19.3 MPa, 193 bar
(2800 psi)
0.7 MPa, 7 bar
(100 psi)
237280,
Series A
Senator
17:1
11.7 MPa, 117 bar
(1700 psi)
0.7 MPa, 7 bar
(100 psi)
245172,
Series A
King
56:1
38.6 MPa, 386 bar
(5600 psi)
0.7 MPa, 7 bar
(100 psi)
245173,
Series B
Quiet King
56:1
38.6 MPa, 386 bar
(5600 psi)
0.7 MPa, 7 bar
(100 psi)
237290,
Series A
Viscount II
(hydraulic)
3.5:1
34 MPa, 345 bar
(5000 psi)
9.9 MPa, 99 bar
(1428 psi)
hydraulic pressure
248817,
Series A
Viscount II
(hydraulic)
3.5:1
34 MPa, 345 bar
(5000 psi)
9.9 MPa, 99 bar
(1428 psi)
hydraulic pressure
Pump Model
Ratio
237286,
Series B
Reduced Icing Quiet King
237287,
Series A
Table of Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operation/Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 10
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . 15
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Disconnecting the Displacement Pump . . . . . . . 16
Reconnecting the Displacement Pump . . . . . . . . 16
Displacement Pump Service . . . . . . . . . . . . . . . . 18
Parts Drawings and Parts Lists . . . . . . . . . . . . . . . . . . 22
Pump Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Displacement Pump . . . . . . . . . . . . . . . . . . . . . . . . 26
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Mounting Hole Layout . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2
308354
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.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
INSTRUCTIONS
This equipment is for professional use only.
Read all instruction manuals, tags, and labels before operating the equipment.
Use the equipment only for its intended purpose. If you are not sure, contact your Graco distributor.
Do not alter or modify this equipment.
Check equipment daily. Repair or replace worn or damaged parts immediately.
Do not exceed the maximum working pressure of the lowest rated system component. Refer to the
Technical Data on pages 28–30 for the maximum working pressure of this equipment.
Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
Do not use hoses to pull equipment.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82C (180F) or below –40C (–40F).
Wear hearing protection when operating this equipment.
Do not lift pressurized equipment.
Comply with all applicable local, state, and national fire, electrical, and safety regulations.
308354
3
WARNING
SKIN INJECTION HAZARD
Spray from the gun, 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.
Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgical treatment.
Do not point the gun at anyone or at any part of the body.
Do not put your hand or fingers over the spray tip.
Do not stop or deflect leaks with your hand, body, glove or rag.
Do not “blow back” fluid; this is not an air spray system.
Always have the tip guard and the trigger guard on the gun when spraying.
Check the gun diffuser operation weekly. Refer to the gun manual.
Be sure the gun trigger safety operates before spraying.
Lock the gun trigger safety when you stop spraying.
Follow the Pressure Relief Procedure on page 10 if the spray tip clogs and before cleaning,
checking or servicing the equipment.
Tighten all fluid connections before operating the equipment.
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.
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 air motor piston, can pinch or amputate your fingers.
Keep clear of all moving parts when starting or operating the pump.
Before servicing the equipment, follow the Pressure Relief Procedure on page 10 to prevent the
equipment from starting unexpectedly.
4
308354
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.
Ground the equipment and the object being sprayed. Refer to Grounding on page 6.
If there is any static sparking or you feel an electric shock while using this equipment, stop spraying immediately. Do not use the equipment until you identify and correct the problem.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
Keep the spray area free of debris, including solvent, rags, and gasoline.
Electrically disconnect all equipment in the spray area.
Extinguish all open flames or pilot lights in the spray area.
Do not smoke in the spray area.
Do not turn on or off any light switch in the spray area while operating or if fumes are present.
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.
Know the specific hazards of the fluid you are using.
Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
308354
5
Installation
General Information
W
X
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. Refer to
Product Data Sheet, Form No. 305715 (Senator
Pumps), Form No. 305716 (Bulldog Pumps), and Form
No. 305717 (King Pumps). If you supply your own
accessories, be sure they are adequately sized and
pressure rated for your system.
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE OR 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
ground 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 mm (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. 237569 Ground Wire and Clamp.
6
308354
0864
Fig. 2
2. Air and fluid hoses: use only electrically conductive
hoses.
4. Spray gun: ground through connection to a properly grounded fluid hose and pump.
WARNING
Fig. 1
Z
3. Air compressor: follow manufacturer’s recommendations.
Grounding
Z
Y
Y
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.
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.
System Accessories
Fig. 3 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.
Air and Fluid Hoses
Be sure all air hoses (H) and fluid hoses (N and P) are
properly sized and pressure-rated for your system.
Use only electrically conductive hoses. Fluid hoses
must have spring guards on both ends. Use a whip
hose (P) and a swivel (R) between the main fluid hose
(N) and the gun (S) to allow freer gun movement.
Mounting Accessories
Mount the pump (A) to suit the type of installation
planned. Fig. 3 illustrates a wall mount system. Pump
dimensions and the mounting hole layout are shown
on page 33.
TI1052
If you are using a floor stand, refer to its separate
manual for installation and operation instructions.
Installation
System Accessories (continued)
A pump runaway valve (C) 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.
An air manifold (G) has a 3/4 npsm(f) swivel air
inlet. It mounts to the pump support bracket, and
provides ports for connecting lines to air-powered
accessories.
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.
A second bleed-type air valve (K) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories.
WARNING
A bleed-type master air valve (E) and a fluid drain
valve (M) are required in your system. 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 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.
Order Part No. 107141.
A fluid drain valve (M) helps reduce the risk of
serious bodily 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 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.
Fluid Line Accessories
Install the following accessories in the locations shown
in Fig. 3, using adapters as necessary:
A fluid filter (L) with a 60 mesh (250 micron)
stainless steel element, to filter particles from the
fluid as it leaves the pump.
A fluid drain valve (M), which is required in your
system, helps relieve fluid pressure in the hose
and gun (see the WARNING at left).
A gun (S) dispenses the fluid. The gun shown in
Fig. 3 is an airless spray gun for light to medium
viscosity fluids.
A gun swivel (R) allows freer gun movement.
A suction kit (T) allows the pump to draw fluid
from a supply container.
Air Line Accessories
Install the following accessories in the locations shown
in Fig. 3, using adapters as necessary:
An air line lubricator (D) provides automatic air
motor lubrication.
A bleed-type master air 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 above). Be sure the bleed valve is easily accessible from the pump, and is located
downstream from the air regulator.
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 bleed-type master air valve.
CAUTION
To prevent intake valve damage, always apply PTFE
tape to the female threads of the intake valve before
connecting a suction hose or fitting to the intake.
308354
7
Installation
TYPICAL INSTALLATION
KEY
A
B
C
D
E
F
G
H
J
K
Electrically Conductive Air Supply Hose
Air Line Filter
Bleed-Type Master Air Valve
(for accessories)
L Fluid Filter
M Fluid Drain Valve (required)
N Electrically Conductive
Fluid Supply Hose
Pump
Wall Bracket
Pump Runaway Valve
Air Line Lubricator
Bleed-Type Master Air Valve
(required, for pump)
Pump Air Regulator
Air Manifold
J
P
R
S
T
Y
Fluid Whip Hose
Gun Swivel
Airless Spray Gun
Suction Kit
Ground Wire and Clamp
(required; see page 6
for installation instructions)
W Air Line Drain Valve
K
MAIN AIR LINE
Y
D
A
S
E
F
C
G
B
H
R
P
L
N
W
M
T
Fig. 3
8
308354
04177B
Installation
(HYDRAULIC-POWERED PUMPS)
A gun (S) dispenses the fluid. The gun shown in
Fig. 4 is an airless spray gun for light to medium
viscosity fluids.
A fluid filter (L) with a 60 mesh (250 micron)
stainless steel element, to filter particles from the
fluid as it leaves the pump.
A gun swivel (R) allows freer gun movement.
A fluid drain valve (M), which is required in your
system, helps relieve fluid pressure in the hose
and gun (see the WARNING on page 7).
A suction kit (T) allows the pump to draw fluid
from a supply container.
Fluid Line Accessories
Install the following accessories in the locations shown
in Fig. 4, using adapters as necessary:
KEY
TYPICAL HYDRAULIC-POWERED INSTALLATION
A
B
C
D
E
F
G
H
J
K
L
M
N
Pump
Wall Bracket
Hydraulic Supply Line
Hydraulic Return Line
Drain Line (from pressure reducing valve)
Pressure Gauge
Flow Control Valve
Pressure Reducing Valve
Accumulator
Drain Line (from motor drip pan)
Fluid Filter
Fluid Drain Valve (required)
Electrically Conductive
Fluid Supply Hose
P Fluid Whip Hose
E
R Gun Swivel
S Airless Spray Gun
T Drum Suction Kit
U Hydraulic Supply Line Shutoff Valve
V Hydraulic Return Line Shutoff Valve
Y Ground Wire (required, see page 6 for
installation instructions)
AA Hydraulic Return Line Filter
HYDRAULIC
POWER SUPPLY
J
H
F
V
S
A
Y
R
U
P
L
G
B
N
C
M
D
AA
DRAINAGE
CONTAINER
K
T
200 LITER (55 GAL.)
DRUM
04582B
Fig. 4
308354
9
Operation/Maintenance
Pressure Relief Procedure
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:
are instructed to relieve the pressure,
stop spraying,
check or service any of the system equipment,
or install or clean the spray tips.
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.
WARNING
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 the pressure, then
torque the nut to 136–149 N.m (100–110 ft-lb) using
the supplied wrench (110). Do this whenever necessary. Do not overtighten the packing nut.
1. Lock the gun/valve trigger safety.
2. Shut off the air supply to the pump.
Model
237287
Shown
3. Close the bleed-type master air valve (required in
your system).
4. Unlock the gun/valve trigger safety.
5. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
6. Lock the gun/valve trigger safety.
1
2
110
7. Open the drain valve (required in your system),
having a container ready to catch the drainage.
8. Leave the drain valve open until you are ready to
spray again.
1
If you suspect that the spray tip 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 or hose.
10
308354
Fig. 5
Torque to 136–149
(100–110 ft-lb)
04143B
Operation/Maintenance
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 12.
Starting and Adjusting the Pump
1. See Fig. 3. Connect the suction kit (T) to the
pump’s fluid inlet. Place the tube into the fluid
supply.
CAUTION
To prevent intake valve damage, always apply PTFE
tape to the female threads of the intake valve before
connecting a suction hose or fitting to the intake.
2. Close the air regulator (F).
NOTE: When changing fluid containers with the hose
and gun already primed, open the drain valve (M) to
help prime the pump and vent air before it enters the
hose. Close the drain valve when all air is eliminated.
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.
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.
In a circulating system, the pump will speed up or
slow down on demand, until the air supply is shut
off.
3. Open the pump’s bleed-type master air valve (E).
4. Hold a metal part of the gun (S) firmly to the side
of a grounded metal pail and hold the trigger open.
5. Slowly open the 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 trigger and lock the trigger safety.
The pump should stall against pressure.
8. If the pump fails to prime properly, open the drain
valve (M). Use the drain valve as a priming valve
until the fluid flows from the valve. Close the valve.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing
your system, which could cause component rupture and serious injury, never
exceed the specified Maximum Incoming Air Pressure to the pump (see the Technical Data, on
pages 28–30).
10. Use the air regulator (F) to control pump speed
and fluid pressure. Always use the lowest air
pressure necessary to get the desired results.
Higher pressures cause premature tip and pump
wear.
308354
11
Operation/Maintenance
Shutdown and Care of the Pump
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
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.
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.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
1. Relieve the pressure.
Always flush the pump before the fluid dries on the
displacement rod. See Flushing below.
3. Hold a metal part of the gun firmly to the side of a
grounded metal pail.
Flushing
WARNING
FIRE AND EXPLOSION HAZARD
Before flushing, read the section FIRE
OR EXPLOSION HAZARD on page 5.
Be sure the entire system and flushing
pails are properly grounded. Refer to
Grounding on page 6.
12
2. Remove the spray tip from the gun.
308354
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.
Operation/Maintenance
(HYDRAULIC-POWERED PUMPS)
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 14.
10. With the pump and lines primed, and with adequate hydraulic volume supplied, the pump will
start and stop as you open and close the gun. In a
circulating system, the pump will speed up or slow
down on demand, until the hydraulic power supply
is shut off.
Starting and Adjusting the Pump
1. Refer to Fig. 4 on page 9. Connect the suction kit
(T) to the pump’s fluid inlet, and place the tube into
the fluid supply.
2. Check the hydraulic fluid level before each use,
and add fluid as necessary.
11. Use the fluid pressure gauge (F) and flow control
valve (G) to control the pump speed and the fluid
outlet pressure. Always use the lowest hydraulic
flow and pressure necessary to get the desired
results. Higher pressures cause premature tip/nozzle and pump wear.
3. Make certain that the supply line shutoff valve (U)
and the return line shutoff valve (V) are closed.
4. Start the hydraulic power supply.
5. Hold a metal part of the gun (S) firmly to the side
of a grounded metal pail and hold the trigger open.
6. Open the return line shutoff valve (V) first, then
slowly open the supply line shutoff valve (U).
7. Cycle the pump slowly until all air is pushed out
and the pump and hoses are fully primed.
8. Release the gun trigger and lock the trigger safety.
The pump should stall against pressure.
9. If the pump fails to prime properly, open the drain
valve (M). Use the drain valve as a priming valve
until the fluid flows from the valve. Close the valve.
NOTE: When changing fluid containers with the hose
and gun already primed, open the drain valve (M) to
help prime the pump and vent air before it enters the
hose. Close the drain valve when all air is eliminated.
WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of overpressurizing
your system, which could cause component rupture and serious injury, never
exceed the specified Maximum Incoming Air Pressure to the pump (see the Technical Data on page
31).
To prevent overpressurizing the hydraulic motor or
its seals, always shut off the supply line valve (U)
first, then shut off the return line valve (V).
CAUTION
Do not allow the hydraulic oil temperature to exceed
54C (130F). The pump seals will wear faster and
leakage may occur if the pump is operated at higher
oil temperatures.
308354
13
Operation/Maintenance
(HYDRAULIC-POWERED PUMPS)
Shutdown and Care of the Pump
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
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
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 10.
1. Relieve the pressure.
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.
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.
14
CAUTION
308354
2. Remove the spray tip 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.
Troubleshooting Chart
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
PROBLEM
1. Relieve the pressure.
2. Check all possible causes and problems before
disassembling the pump.
CAUSE
SOLUTION
The pump fails to oper- Restricted air/hydraulic line or an inade- Clear the line; increase the air/hydraulic supply.
ate.
quate air/hydraulic supply; closed or Check that the valves are open.
clogged valves.
Obstructed fluid hose or gun;
the fluid hose ID is too small.
Open, clear*; use a hose with a larger ID.
Fluid has dried on the displacement rod. Clean the rod; always stop the pump at the bottom
of its stroke;
keep the wet-cup 1/3 filled with a compatible solvent.
Dirty, worn, or damaged motor parts.
Clean or repair; see the separate motor manual.
The pump operates, Restricted air/hydraulic line or an inade- Clear the line; increase the air/hydraulic supply.
but the output is low on quate air/hydraulic supply; closed or Check that the valves are open.
both strokes.
clogged valves.
Obstructed fluid hose or gun;
the fluid hose ID is too small.
Open, clear*; use a hose with a larger ID.
Worn packings in the displacement Replace the packings.
pump.
The pump operates, Held open or worn intake valve.
but the output is low on
the downstroke.
Clear the valve; service.
The pump operates, Held open or worn piston valve or pack- Clear the valve; replace the packings.
but the output is low on ings.
the upstroke.
Erratic or accelerated Exhausted fluid supply.
pump speed.
Refill the supply and prime the pump.
Held open or worn piston valve or pack- Clear the valve; replace the packings.
ings.
Held open or worn intake valve.
*
Clear the valve; service.
To determine if the fluid hose or gun is obstructed, follow the Pressure Relief Procedure on page 10. 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 when the air or hydraulic power is turned on, the obstruction is in the fluid hose or gun.
NOTE: If you experience air motor icing, call your Graco distributor.
308354
15
Service
Required Tools
Set of adjustable wrenches
Large pipe wrench
Torque wrench
Rubber mallet
O-ring pick
Large vise
Thread lubricant
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 10.
2. Relieve the pressure.
3. Disconnect the air hose and the fluid hose.
4. Disconnect the displacement pump (109) from the
motor (101) as follows. Note the relative position of
the pump’s fluid outlet (U) to the air inlet (V) of the
motor. 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 wall bracket), 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.
If the pump is mounted on a cart, slowly tip the cart
backward until the handle rests on the ground, then
disconnect the displacement pump.
16
308354
5. Using an adjustable wrench (or hammer and
punch), unscrew the coupling nut (106) from the
motor shaft (W). Do not lose or drop the coupling
collars (107). See Fig. 6.
6. Hold the tie rod flats with a wrench to keep the
rods from turning. Unscrew the nuts (108) from the
tie rods (105). Carefully remove the displacement
pump (109) from the motor (101).
7. Refer to page 18 for displacement pump service.
To service the air motor, refer to the separate
motor manual, supplied.
Reconnecting the Displacement Pump
1. Make sure the coupling nut (106) and the coupling
collars (107) 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 at left). Orient the pump’s fluid
outlet (U) to the air inlet (V) as was noted in step 4
under Disconnecting the Displacement Pump.
Position the displacement pump (109) on the tie
rods (105).
3. Screw the nuts (108) onto the tie rods (105) and
torque to 81–89 N.m (60–66 ft-lb).
4. Screw the coupling nut onto the motor shaft (W)
loosely. Hold the motor shaft 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).
5. Reconnect all hoses. Reconnect the ground wire if
it was disconnected. Fill the packing nut (2) 1/3 full
of Graco Throat Seal Liquid or compatible solvent.
6. Turn on the air 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 10.
7. Before returning the pump to production, relieve
the pressure and retorque the packing nut (2) to
136–149 N.m (100–110 ft-lb).
Service
V
Model 237287 Shown
110
101
W
107
106
2
1
3
105
2
3
108
1
109
U
1
Torque to 136–149 N.m (100–110 ft-lb)
2
Torque to 196–210 N.m (145–155 ft-lb)
3
Torque to 81–89 N.m (60–66 ft-lb)
04142B
Fig. 6
308354
17
Service
DISPLACEMENT PUMP SERVICE
Disassembly
If the assembly separates at joint B:
c.
When disassembling the pump, lay out all the removed
parts in sequence, to ease reassembly.
NOTE: Packing Repair Kits are available. For the best
results, use all the new parts in the kit. Kit parts are
marked with an asterisk, for example (3*). You can
also convert the pump to different packing materials.
Refer to page 27.
1. Place the pump lengthwise in a large vise, with the
jaws on either the outlet housing (7) as shown in
Fig. 7 or on the cylinder (9) flats. Using the supplied wrench (110), loosen, but do not remove, the
packing nut (2).
2. Apply a pipe wrench to the flats of the intake valve
(19). Unscrew the intake valve (19) from the intake
housing (18). Be careful to catch the intake ball
(17) as you remove the intake valve, so that it
does not fall and suffer damage. Remove the seal
(8) from the intake valve. Inspect the ball and the
seat (D) of the intake valve for wear or damage.
3. Apply a pipe wrench to the hex of the valve housing (18). The pump assembly may separate at joint
A or joint B.
CAUTION
To reduce the possibility of costly damage to the rod
(1) and cylinder (9), always use a rubber mallet to
drive the rod out of the cylinder. Never use a hammer.
If the assembly separates at joint A:
a. Unscrew the valve housing (18) from the
cylinder, using a 2–5/8 in. wrench for the
cylinder flats. Using a rubber mallet, drive the
displacement rod (1) and piston assembly out
of the outlet housing (7) and cylinder (9) until
the piston comes free. Pull the rod and piston
from the cylinder, being careful not to scratch
the parts.
b. Using a 2–5/8 in. wrench for the cylinder flats,
unscrew the cylinder (9) from the outlet housing (7). Remove the two seals (8) from the
cylinder. Shine a light into the cylinder (9) to
inspect the inner surface for scoring or wear.
Now go to step 4.
18
308354
Unscrew the cylinder (9) and valve housing
(18) from the outlet housing (7). Gently pull the
cylinder and valve housing straight out of the
outlet housing; the displacement rod (1) and
piston assembly will come out with these
parts.
d. Place the valve housing (18) in the vise and
unscrew the cylinder (9) from the housing,
using a 2–5/8 in. wrench for the cylinder flats.
The displacement rod (1) and piston assembly
will remain in the cylinder.
e. Using a rubber mallet, drive the displacement
rod (1) and piston assembly out of the cylinder
(9) until the piston comes free. Pull the rod and
piston from the cylinder, being careful not to
scratch the parts.
f.
Remove the two seals (8) from the cylinder.
Shine a light into the cylinder (9) to inspect the
inner surface for scoring or wear. Now go to
step 4.
4. Place the flats of the piston seat housing (16) in a
vise, as shown in Fig. 8.
5. Using an adjustable wrench, unscrew the piston
ball housing (10) from the piston seat housing. Be
careful to catch the piston ball (11) as you separate the piston seat housing and ball housing, so
that it does not fall and suffer damage.
6. Examine the displacement rod (1) for scratches or
other damage. Only if the rod needs replacement, unscrew it from the piston ball housing (10),
using an adjustable wrench on the flats of the rod.
7. Remove the glands and v-packings (P) from the
piston seat housing (16). Inspect the ball (11), and
the seat (E) and guides (F) on the housing for
wear or damage. See Fig. 9.
8. Unscrew the packing nut (2) from the outlet housing (7). Remove the glands and v-packings (T).
See Fig. 9.
9. Clean all parts with a compatible solvent and
inspect them for wear or damage.
Service
D
1
18
19
1
7
9
3
2
17*
8*
2
A
B
1
2
1
Torque to 325–353 N.m (240–260 ft-lb).
2
Lubricate.
3
Torque to 190–217 N.m (140–160 ft-lb).
03794B
Fig. 7
1
1
1
10
11*
1
10
16
1
16
1
Torque to 271–298 N.m (200–220 ft-lb).
03793A
Fig. 8
308354
19
Service
Reassembly
1. If it was necessary to remove the piston ball
housing (10) from the displacement rod (1), clean
the threads of the rod and the ball housing. Screw
the ball housing onto the rod, hand tight. Place the
flats of the piston ball housing in a vise and torque
the rod to 271–298 N.m (200–220 ft-lb). See Fig.
9.
2. For standard displacement pump 236470, place
the piston packings on the piston seat housing (16)
in the following order, with the lips of the v-packings facing up: the female gland (15*), one PTFE
v-packing (14*), four leather
v-packings (12*), and the male gland (13*).
See the Piston Packing Stack Detail in Fig. 9.
NOTE: If your pump uses an optional packing configuration, or you want to convert the pump to a different
packing material, see page 27.
3. Place the flats of the piston seat housing (16) in a
vise. Place the ball (11*) on the housing. Screw the
piston ball housing (10) onto the piston seat housing hand tight, then torque to 271–298 N.m
(200–220 ft-lb). See Fig. 8.
4. For standard displacement pump 236470, lubricate
the throat packings and place them in the outlet
housing (7) in the following order, with the lips of
the v-packings facing down: the male gland (6*),
four leather v-packings (3*), one
PTFE v-packing (5*), and the female gland (4*).
See the Throat Packing Stack Detail in Fig. 9.
NOTE: If your pump uses an optional packing configuration, or you want to convert the pump to a different
packing material, see page 27.
5. Install the packing nut (2) loosely into the outlet
housing (7).
20
308354
6. Lubricate the piston packings. Slide the displacement rod (1) and piston assembly down into the
cylinder (9). The cylinder is symmetrical, so either
end may face up. Use a rubber mallet to drive the
rod into the cylinder, until the piston seat housing
(16) is near the bottom of the cylinder.
7. Install the seal (8*) on the top of the cylinder (9).
Lubricate the seal and the top threads of the
cylinder.
8. Place the outlet housing (7) in a vise, as shown in
Fig. 7. Slide the displacement rod (1) up into the
outlet housing, then screw the cylinder (9) into the
outlet housing handtight. The threads will engage
easily until the seal (8*) contacts the sealing
surface of the outlet housing. The top of the rod
will protrude from the packing nut (2).
9. Install the seal (8*) on the bottom of the cylinder
(9). Lubricate the seal and the threads of the
cylinder. With the beveled ball stop surfaces (S)
facing down (see Fig. 9), screw the intake housing (18) onto the cylinder handtight. The threads
will engage easily until the seal contacts the sealing surface of the intake housing.
10. Install the seal (8*) on the intake valve (19). Lubricate the seal and the threads of the intake valve.
Place the intake ball (17*) in the intake housing
(18), then screw the intake valve into the intake
housing handtight. The threads will engage easily
until the seal contacts the sealing surface of the
intake housing.
11. Using a pipe wrench, torque the intake housing
(18) to 325–353 N.m (240–260 ft-lb). This will
torque both cylinder joints (A and B). See Fig. 7.
12. Using a pipe wrench, torque the intake valve (19)
to 190–217 N.m (140–150 ft-lb). See Fig. 7.
13. Torque the packing nut (2) to 136–149 N.m
(100–110 ft-lb).
14. Reconnect the displacement pump to the air motor
as explained on page 16.
Service
1
1
Torque to 136–149 N.m (100–110 ft-lb).
2
Torque to 325–353 N.m (240–260 ft-lb).
3
Torque to 271–298 N.m (200–220 ft-lb).
4
Lubricate.
7
See Throat Packing Detail at left.
5
Lips face up.
8
See Piston Packing Detail at left.
6
Lips face down.
9
Torque to 190–217 N.m (140–160 ft-lb).
2
1
7
Throat Packing Stack Detail
(Displacement Pump 236470 Shown;
see page 27 for options.)
T
7
2 (Ref)
6
4
*4
*5
6
4
*3
*6
4
*8
7 (Ref)
B
3
Piston Packing Stack Detail
(Displacement Pump 236470 Shown;
see page 27 for options.)
10
*11
F
9
E
18
10 (Ref)
8
2
P
9 (Ref)
16
16 (Ref)
*13
4
5
3
A
*12
17*
4
5
*14
4
D
*8
*15
18 (Ref)
19
9
*8 (Ref)
S
03634B
Fig. 9
308354
21
Parts
Part No. 237286 Pump, Series B
56:1 Ratio, with Reduced Icing
Quiet King Air Motor
Ref.
No.
Part No.
Description
101
245112
AIR MOTOR, King, reduced icing
For Model 237286
See 309348 for parts
AIR MOTOR, King
For Model 245172
See 309347 for parts
AIR MOTOR, Quiet King
For Model 245173
See 309348 for parts
LABEL, warning
ROD, tie; 224 mm (8.82 in.)
shoulder to shoulder; carbon steel
NUT, coupling
COLLAR, coupling
NUT, hex; M16 x 2.0
PUMP, displacement
See page 26 for parts
WRENCH, spanner
Part No. 245172 Pump, Series A
56:1 Ratio, with King Air Motor
245111
Part No. 245173 Pump, Series A
56:1 Ratio, with Quiet King Air Motor
220106
102 176529
105 190000
101
106
107
108
109
186925
184129
106166
236470
110
112887
Qty.
1
1
1
1
3
1
2
3
1
1
Replacement Danger and Warning labels, tags and cards
are available at no cost.
102
107
105
110
106
109
108
04276B
These parts are included in Connection Kit
235417. For applications requiring stainless steel
tie rods, order Connection Kit 235418.
22
308354
Parts
Part No. 237287 Pump, Series A
28:1 Ratio, with Bulldog Air Motor
Ref.
No.
Part No.
Description
101
208356
AIR MOTOR, Bulldog
See 307049 for parts
LABEL, warning
ROD, tie; 224 mm (8.82 in.)
shoulder to shoulder; carbon steel
NUT, coupling
COLLAR, coupling
NUT, hex; M16 x 2.0
PUMP, displacement
See page 26 for parts
WRENCH, spanner
102 176529
105 190000
102
106
107
108
109
186925
184129
106166
236470
110
112887
Qty.
1
1
3
1
2
3
1
1
Replacement Danger and Warning labels, tags and cards
are available at no cost.
101
110
107
105
106
109
108
04142B
These parts are included in Connection Kit
235417. For applications requiring stainless steel
tie rods, order Connection Kit 235418.
308354
23
Parts
Part No. 237280 Pump, Series A
17:1 Ratio, with Senator Air Motor
Ref.
No.
Part No.
Description
101
217540
AIR MOTOR, Senator
See 307592 for parts
LABEL, warning
ROD, tie; 224 mm (8.82 in.)
shoulder to shoulder; carbon steel
NUT, coupling
COLLAR, coupling
NUT, hex; M16 x 2.0
PUMP, displacement
See page 26 for parts
WRENCH, spanner
102 176529
105 190000
102
106
107
108
109
186925
184129
106166
236470
110
112887
Qty.
1
1
3
1
2
3
1
1
Replacement Danger and Warning labels, tags and cards
are available at no cost.
101
107
110
105
106
108
109
04141B
These parts are included in Connection Kit
235417. For applications requiring stainless
steel tie rods, order Connection Kit 235418.
24
308354
Parts
Part No. 237290 Pump, Series A, with
Viscount Hydraulic Motor
Part No. 248817 Pump, Series A, with
Viscount Hydraulic Motor
Ref.
No.
Part No.
Description
101
235345
103
105
190287
184596
106
107
108
109
186925
184129
106166
236470
HYDRAULIC MOTOR, Viscount
See 307158 for parts
ADAPTER, connecting rod
ROD, tie; 315 mm (12.40 in.)
shoulder to shoulder
NUT, coupling
COLLAR, coupling
NUT, hex; M16 x 2.0
PUMP, displacement
For Model 237290
See page 26 for parts
PUMP, displacement
For Model 248817
See page 26 for parts
WRENCH, packing nut
248816
110
112887
Qty.
1
1
3
1
2
3
1
1
1
101
103
107
105
106
108
110
109
05192B
308354
25
Parts
NOTE: The parts listed on this page are common to all
displacement pumps covered in this manual. Refer to page
27 for the different packing configurations available.
* These parts are included in Repair Kit 237172, which may
be purchased separately for standard Displacement
Pump 236470. See page 27. They are also included in
Conversion Kits 237173, 237174, and 237710.
Replacement Danger and Warning labels, tags and cards
are available at no cost.
2
Ref
No.
Part
No.
1
2
7
8*
9
10
11*
189316
236582
237182
109499
189383
189408
101859
16
236587
17*
108001
18
189396
19
236588
22
101748
24
25
172477
172479
Description
Qty
ROD, displacement; stainless steel
PACKING NUT; stainless steel
HOUSING, outlet; stainless steel
SEAL; PTFE
CYLINDER; stainless steel
HOUSING, ball, piston; carbon steel
BALL, piston; stainless steel;
0.75 in. (22.2 mm) dia.
HOUSING, seat, piston valve;
stainless steel w/tungsten carbide seat
BALL, intake; stainless steel;
1.5 in. (38.1 mm) dia.
VALVE HOUSING, intake; stainless
steel
VALVE, intake; stainless steel
w/tungsten carbide seat
PLUG, pipe, socket hd; 3/8 npt;
stainless steel
TAG, warning (not shown)
TAG, warning (not shown)
10
Throat
Packing
Stack
(see page 27)
7
11*
22
Piston
Packing
Stack
(see page 27)
16
8*
1
18
*8
8*
17*
9
19
03630B
26
308354
1
1
1
3
1
1
1
1
1
1
1
1
1
1
Packing Kits
Leather Packing Kit 237172, for Standard Displacement Pump 236470, Series A
Ref
No.
Part
No.
Description
3*
4*
5*
6*
12*
13*
14*
15*
184304
184174
109304
184224
184305
184225
109305
184175
V-PACKING, throat; leather
GLAND, throat, female; stainless steel
V-PACKING, throat; PTFE
GLAND, throat, male; stainless steel
V-PACKING, piston; leather
GLAND, piston, male; stainless steel
V-PACKING, piston; PTFE
GLAND, piston, female; stainless steel
Qty
4
1
1
1
4
1
1
1
PISTON PACKINGS:
LIPS FACE UP
THROAT PACKINGS:
LIPS FACE DOWN
*4
*13
5*
*3
*12
*6
*15
14*
LUBRICATE PACKINGS
0805
0806
* Kit also includes items 8, 11, and 17 (see page 26).
PTFE Packing Kit 237173, for Optional Displacement Pump 236897, Series A
Ref
No.
Part
No.
Description
4*
5*
6*
13*
14*
15*
184174
109304
184224
184225
109305
184175
GLAND, throat, female; stainless steel
V-PACKING, throat; PTFE
GLAND, throat, male; stainless steel
GLAND, piston, male; stainless steel
V-PACKING, piston; PTFE
GLAND, piston, female; stainless steel
THROAT PACKINGS:
LIPS FACE DOWN
Qty
1
5
1
1
5
1
PISTON PACKINGS:
LIPS FACE UP
*4
*13
*5
*14
*6
*15
0805
0806
LUBRICATE PACKINGS
* Kit also includes items 8, 11, and 17 (see page 26).
UHMWPE and Leather Packing Kit 237174 (Optional)
Ref
No.
Part
No.
Description
3*
4*
5*
6*
12*
13*
14*
15*
184304
184174
109254
184224
184305
184225
109255
184175
V-PACKING, throat; leather
GLAND, throat, female; stainless steel
V-PACKING, throat; UHMWPE
GLAND, throat, male; stainless steel
V-PACKING, piston; leather
GLAND, piston, male; stainless steel
V-PACKING, piston; UHMWPE
GLAND, piston, female; stainless steel
THROAT PACKINGS:
LIPS FACE DOWN
Qty
2
1
3
1
2
1
3
1
PISTON PACKINGS:
LIPS FACE UP
*4
*13
*5
3* *14
*6
*15
12*
0805
0806
LUBRICATE PACKINGS
Kit also includes items 8, 11, and 17 (see page 26).
UHMWPE and PTFE Packing Kit 237710 (Optional)
Ref
No.
Part
No.
Description
3*
4*
5*
6*
12*
13*
14*
15*
109304
184174
109254
184224
109305
184225
109255
184175
V-PACKING, throat; PTFE
GLAND, throat, female; stainless steel
V-PACKING, throat; UHMWPE
GLAND, throat, male; stainless steel
V-PACKING, piston; PTFE
GLAND, piston, male; stainless steel
V-PACKING, piston; UHMWPE
GLAND, piston, female; stainless steel
THROAT PACKINGS:
LIPS FACE DOWN
Qty
2
1
3
1
2
1
3
1
PISTON PACKINGS:
LIPS FACE UP
*4
*13
*5
3* *14
*6
*15
12*
0805
0806
LUBRICATE PACKINGS
Kit also includes items 8, 11, and 17 (see page 26).
308354
27
Technical Data
(Model 237286 Reduced Icing Quiet King Pump,
Model 245173 Quiet King Pump, and
Model 245172 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.
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56:1
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 38.6 MPa, 386 bar (5600 psi)
Maximum air input pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 MPa, 7 bar (100 psi)
Pump cycles per 3.8 liters (1 gal.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fluid flow at 60 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.9 liters/min (3.4 gpm)
Air motor piston effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506 cm (78.5 in.)
Stroke length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mm (4.75 in.)
Displacement pump effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 cm (1.40 in.)
Maximum pump operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82C (180F)
* Noise level at 90 psi, 25 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 dBa
* Sound power level at 90 psi, 25 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 dBa
Air inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npsm(f)
Fluid inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 in. npt(f)
Fluid outlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 in. npt(f)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 109 kg (240 lb)
Wetted parts . . . . . . . . . 316, 440 and 17–4 PH Grades of Stainless Steel; Tungsten Carbide;
PTFE; Glass-Filled PTFE; Leather
* Tested in accordance with ISO 3744.
KEY: Fluid Outlet Pressure – Black Curves
Air Consumption – Gray Curves
NOTE:Recommended pump speed for continuous operation
(to shaded area): 60 cpm
psi
bar
MPa
5000
350
35
A
B
C
6.3 bar (90 psi) Air Pressure
4.9 bar (70 psi) Air Pressure
2.8 bar (40 psi) Air Pressure
cycles/min
18
36
54
60
72
A
90 scfm
m/min
250
7.00
200
5.60
4000
280
28
B
A
3000
210
21
B
2000
140
14
150
4.20
100
2.80
C
C
50
1.40
1000
70
7
0
gpm 0
1
3.8
liters/min
2
7.6
3
11.4
4
15.2
5
19.0
FLUID FLOW (NO. 10 WEIGHT 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 (black). Follow left to scale to read fluid outlet
pressure.
28
308354
To find Pump Air Consumption (m/min. or scfm) at a specific fluid
flow (lpm/gpm) and air pressure (bar/psi):
1. Locate desired flow along bottom of chart.
2. Read vertical line up to intersection with selected air consumption
curve (gray). Follow right to scale to read air consumption.
Technical Data
(Model 237287 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.
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28:1
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 19.3 MPa, 193 bar (2800 psi)
Maximum air input pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 MPa, 7 bar (100 psi)
Pump cycles per 3.8 liters (1 gal.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fluid flow at 60 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.9 liters/min (3.4 gpm)
Air motor piston effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 cm (38 in.)
Stroke length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mm (4.75 in.)
Displacement pump effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 cm (1.86 in.)
Maximum pump operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82C (180F)
* Noise level at 100 psi, 25 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 dBa
* Sound power level at 100 psi, 25 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 dBa
Air inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npsm(f)
Fluid inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 in. npt(f)
Fluid outlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 in. npt(f)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 109 kg (240 lb)
Wetted parts . . . . . . . . . 316, 440 and 17–4 PH Grades of Stainless Steel; Tungsten Carbide;
PTFE; Glass-Filled PTFE; Leather
* Tested in accordance with ISO 3744.
KEY: Fluid Outlet Pressure – Black Curves
Air Consumption – Gray Curves
A
B
C
0.7MPa, 7 bar (100 psi) Air Pressure
0.5 MPa, 4.9 bar (70 psi) Air Pressure
0.3 MPa, 2.8 bar (40 psi) Air Pressure
NOTE:Recommended pump speed for continuous operation
(to shaded area): 60 cpm
psi
bar
MPa
3000
210
21
2500
175
17.5
2000
140
14
cycles/min
18
36
54
60
72
90
scfm
m/min
A
A
250
7.00
200
5.60
B
B
150
4.20
1500
105
10.5
1000
70
7
C
100
2.80
C
50
1.40
500
35
3.5
0
gpm 0
1
3.8
liters/min
2
7.6
3
11.4
4
15.2
5
19.0
FLUID FLOW (NO. 10 WEIGHT OIL)
To find Fluid Outlet Pressure (bar/psi) at a specific fluid flow
(lpm/gpm) and operating air pressure (bar/psi):
To find Pump Air Consumption (m/min or scfm) at a specific fluid flow (lpm/gpm) and air pressure (bar/psi):
1. Locate desired flow along bottom of chart.
1. Locate desired flow along bottom of chart.
2. Follow vertical line up to intersection with selected fluid
outlet pressure curve (black). Follow left to scale to read
fluid outlet pressure.
2. Read vertical line up to intersection with selected air consumption curve (gray). Follow right to scale to read air
consumption.
308354
29
Technical Data
(Model 237280 Senator 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.
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17:1
Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 11.7 MPa, 117 bar (1700 psi)
Maximum air input pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 MPa, 7 bar (100 psi)
Pump cycles per 3.8 liters (1 gal.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fluid flow at 60 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.9 liters/min (3.4 gpm)
Air motor piston effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 cm (24 in.)
Stroke length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mm (4.75 in.)
Displacement pump effective area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 cm (1.40 in.)
Maximum pump operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82C (180F)
* Noise level at 100 psi, 25 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 dBa
* Sound power level at 100 psi, 25 cycles/min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 dBa
Air inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npsm(f)
Fluid inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 in. npt(f)
Fluid outlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 in. npt(f)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 109 kg (240 lb)
Wetted parts . . . . . . . . . 316, 440 and 17–4 PH Grades of Stainless Steel; Tungsten Carbide;
PTFE; Glass-Filled PTFE; Leather
* Tested in accordance with ISO 3744.
KEY: Fluid Outlet Pressure – Black Curves
Air Consumption – Gray Curves
NOTE: Recommended pump speed for continuous
operation (to shaded area): 60 cpm
psi
bar
MPa
2500
175
17.5
A
B
C
0.7 MPa, 7 bar (100 psi) Air Pressure
0.5 MPa, 4.9 bar (70 psi) Air Pressure
0.3 MPa, 2.8 bar (40 psi) Air Pressure
cycles/min
18
36
54
60
72
90
scfm
m/min
200
5.60
2000
140
14
A
1500
105
10.5
150
4.20
B
1000
70
7
A
B
C
500
35
3.5
C
0
gpm 0
liters/min
1
3.8
2
7.6
3
11.4
4
15.2
100
2.80
50
1.40
5
19.0
FLUID FLOW (NO. 10 WEIGHT OIL)
To find Fluid Outlet Pressure (bar/psi) at a specific fluid flow
(lpm/gpm) and operating air pressure (bar/psi):
To find Pump Air Consumption (m/min or scfm) at a specific fluid flow (lpm/gpm) and air pressure (bar/psi):
1. Locate desired flow along bottom of chart.
1. Locate desired flow along bottom of chart.
2. Follow vertical line up to intersection with selected fluid
outlet pressure curve (black). Follow left to scale to read
fluid outlet pressure.
2. Read vertical line up to intersection with selected air consumption curve (gray). Follow right to scale to read air
consumption.
30
308354
Technical Data
(Model 237290 and 248817 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
Ratio
3.5:1
Maximum fluid working pressure
34 MPa, 345 bar (5000 psi)
Maximum hydraulic oil input pressure
9.9 MPa, 99 bar (1428 psi)
Pump cycles per 3.8 liters (1 gal.)
18
Fluid flow at 60 cycles/min
12.9 liters/min (3.4 gpm)
Hydraulic motor piston effective area
31.6 cm (4.9 in.)
Stroke length
120 mm (4.75 in.)
Displacement pump effective area
9 cm (1.40 in.)
Maximum pump operating temperature
82C (180F)
* Noise level at 1450 psi hydraulic
pressure, 25 cycles/min
88 dB(A)
* Sound power level at 1450 psi
hydraulic pressure, 25 cycles/min
103 dB(A)
Hydraulic oil inlet size
3/4 npt(f)
Fluid inlet size
2 in. npt(f)
Fluid outlet size
1 in. npt(f)
Weight
approx. 68 kg (150 lb)
Wetted parts
Carbon Steel; Chrome Steel; Alloy Steel; Chrome, Zinc, and Nickel
Plating; 440 and 17–4 PH Grades of Stainless Steel; Ductile Iron;
Tungsten Carbide; PTFE; Glass-Filled PTFE
* Tested in accordance with ISO 3744.
308354
31
Technical Data
(Model 237290 and 248817 Viscount II Pump)
Performance Charts
To find Fluid Outlet Pressure (psi/MPa/bar) at a specific fluid flow
(lpm/gpm) and operating hydraulic pressure (psi/MPa/bar):
To find Pump Hydraulic Oil Consumption (gpm or lpm) at a specific
fluid flow (lpm/gpm):
1. Locate desired flow along bottom of chart.
1. Locate desired flow along bottom of chart.
2. Follow vertical line up to intersection with selected fluid outlet
pressure curve (black). Follow left to scale to read fluid outlet
pressure.
2. Read vertical line up to intersection with selected hydraulic consumption curve (dashes). Follow left to scale to read oil consumption.
A
B
C
9.9 MPa, 99 bar (1428 psi) hydraulic oil pressure
7 MPa, 70 bar (1000 psi) hydraulic pressure
4 MPa, 40 bar (571 psi) hydraulic pressure
Test Fluid: No. 10 Weight Oil
Fluid Outlet Pressure
32
308354
cycles per minute
18
36
54
72
A
gpm
lpm
(hyd. oil)
10
38.0
8
30.4
6
22.8
4
15.2
2
7.6
0
gpm 0
liters/minute
Hydraulic Oil Consumption
18
OIL CONSUMPTION
FLUID PRESSURE
psi
MPa, bar
5000
34, 345
4000
28, 280
3000
21, 210
2000
14, 140
1000
7, 70
0
gpm 0
liters/minute
B
C
1
3.8
2
7.6
3
11.4
4
15.2
cycles per minute
36
54
72
hydraulic oil
consumption
1
3.8
2
7.6
3
11.4
4
15.2
Dimensions
Mounting Hole
Layout
Model 237287 Shown
94.28 mm
(3.712 in.)
G
101.6 mm
(4.0 in.)
94.28 mm
(3.712 in.)
C
50.8 mm
(2.0 in.)
A
Three M16 x
2.0
Holes
11.1 mm
(0.437 in.)
DIA (4)
88 mm
(3.464 in.)
0653
D
B
F
E
04143B
Pump Model
A
B
C
D
E
F
G
237280
1138 mm
(44.80 in.)
590 mm
(23.23 in.)
548 mm
(21.57 in.)
257 mm
(10.12 in.)
2 in. npt(f)
1 in. npt(f)
3/4 npsm(f)
237286
1180 mm
(46.44 in.)
590 mm
(23.23 in.)
590 mm
(23.21 in.)
257 mm
(10.12 in.)
2 in. npt(f)
1 in. npt(f)
3/4 npsm(f)
237287
1134 mm
(44.65 in.)
590 mm
(23.23 in.)
544 mm
(21.42 in.)
257 mm
(10.12 in.)
2 in. npt(f)
1 in. npt(f)
3/4 npsm(f)
245172
1130 mm
(44.49 in.)
590 mm
(23.23 in.)
540 mm
(21.26 in.)
257 mm
(10.12 in.)
2 in. npt(f)
1 in. npt(f)
3/4 npsm(f)
245173
1136 mm
(44.72 in.)
590 mm
(23.23 in.)
546 mm
(21.5 in.)
257 mm
(10.12 in.)
2 in. npt(f)
1 in. npt(f)
3/4 npsm(f)
237290
1344 mm
(52.91 in.)
681 mm
(26.81 in.)
663 mm
(26.10 in.)
not applicable
2 in. npt(f)
1 in. npt(f)
3/4 npt(f)
248817
1344 mm
(52.91 in.)
681 mm
(26.81 in.)
663 mm
(26.10 in.)
not applicable
2 in. npt(f)
1 in. npt(f)
3/4 npt(f)
308354
33
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. 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.
MM 308354
This manual contains English.
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
www.graco.com
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
06/1995, Revised 07/2006
34
308354
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