Graco Series B Operation manual

308883
Rev. F
First choice when
quality counts.
INSTRUCTIONS–PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
50:1 Ratio Fire-BallrGrease Pumps
FOR LUBRICATING PRODUCTS ONLY
8400 psi (58 MPa, 580 bar) Maximum Fluid Working Pressure
140 psi (0.97 MPa, 9.7 bar) Maximum Air Working Pressure
Model No. 239877, Series B
pail length
Model No. 239887, Series B
120-pound drum length
Model No. 239888, Series B
400-pound drum length
WARNING
This product is designed to be used only in
pumping non-corrosive and non-abrasive lubricants
and greases. Any other use can cause unsafe
operating conditions and result in component
rupture, fire, or explosion, which can cause serious
injury, including fluid injection.
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement Pump Service 10. . . . . . . . . . . . . . . . . . . .
Air Motor and Throat Service 12. . . . . . . . . . . . . . . . . . . .
Parts Drawing 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensional Drawings 18. . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 18. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 20. . . . . . . . . . . . . . . . . . . . . . . . . .
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 1999, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
Model No. 239887 shown
9038B
Parts

2 308883
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.
This equipment is for professional use only.
Read all instruction manuals, tags, and labels before you operate this equipment.
Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
Do not 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 component in your system.
This equipment has a 8400 psi (58 MPa, 580 bar) maximum working pressure at 140 psi
(0.97 MPa, 9.7 bar) maximum incoming air pressure.
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.
Handle hoses carefully. Do not pull on hoses to move equipment.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not
expose Graco hoses to temperatures above 66C (150F) or below –40C (–40F).
Do not move or lift pressurized equipment.
Comply with all applicable local, state, and national fire, electrical, and safety regulations.

3
308883
TOXIC FLUID HAZARD
Hazardous fluids 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.
INJECTION HAZARD
Fluid from the dispensing 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.
Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate
medical attention.
Do not point the dispensing valve at anyone or at any part of the body.
Do not put your hand or fingers over the end of the dispensing valve.
Do not stop or deflect leaks with your hand, body, glove or rag.
Use only extensions and no-drip tips which are designed for use with your dispensing valve.
Do not use a low pressure flexible nozzle with this equipment.
Follow the Pressure Relief Procedure on page 8 if the grease fitting coupler clogs and before
you clean or service this equipment.
Tighten all fluid connections before you operate this 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.
WARNING

4 308883
MOVING PARTS HAZARD
Moving parts, such as the air motor piston, can pinch or amputate your fingers.
Do not operate the pump with the air motor plates removed.
Keep clear of all moving parts when you start or operate the pump.
Before you service this equipment, follow the Pressure Relief Procedure on page 8 to prevent
the equipment from starting unexpectedly.
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 dispensed to. Refer to Grounding below.
If there is any static sparking or you feel an electric shock while using this equipment, stop
dispensing 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 dispensed.
Keep the dispensing area free of debris, including solvent, rags, and gasoline.
Do not smoke in the dispensing area.
WARNING

5
308883
Notes

6 308883
Installation
Grounding
Proper grounding is an essential part of maintaining a
safe system.
To reduce the risk of static sparking, ground the pump.
Check your local electrical code for detailed grounding
instructions for your area and type of equipment.
Ground all of this equipment:
Pump: Use a ground wire and clamp as shown
in Fig. 1.
Air and fluid hoses: Use only electrically conductive
hoses.
Air compressor: Follow the manufacturer’s
recommendations.
Fluid supply container: Follow the local code.
To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
valve firmly to the side of a grounded metal pail,
then trigger the valve.
To ground the pump, remove the ground screw (Z)
and insert through the eye of the ring terminal at end of
the ground wire (Y). Fasten the ground screw back
onto the pump and tighten securely. Connect the other
end of the ground wire to a true earth ground. See Fig.
1. To order a ground wire and clamp, order Part No.
222011.
Fig. 1 TI1052
Y
Z
Fig. 2
For Stationary Mountings
KEY
A Fluid dispense line
B Pump ground wire (required)
C Air regulator with gauge
D Main air supply line
E Air line filter
F Air line lubricator
G Pump runaway valve
H Follower plate
J Bleed-type Master Air Valves
(required)
K Fluid drain valve
Recommended air line
configuration to reduce
moisture in pump
1/2 in.
B
C
D
E
F
G
H
J
A
04191C
J
K

7
308883
Installation
Mounting
WARNING
Mount the pump securely so that it cannot move
around during operation. Failure to do so could
result in personal injury or equipment damage.
1. Plan the mounting layout for easy operator access
to the pump air controls, sufficient room to change
drums and a secure mounting platform.
2. If using a follow plate (H), remove the drum cover.
Scoop the material to the center of the drum to
make the surface concave. Place the plate on the
material. Guide the pump foot valve through the
plate.
3. Mount the pump to the drum cover or other
suitable mounting device.
4. For ease in changing drums, install a pump
elevator.
Air and Fluid Line and Accessories
See Fig. 2 above.
Three accessories are required in your system: an
air shut-off valve/air bleed device, fluid drain valve,
and ground wire. These accessories help reduce
the risk of serious bodily injury, including fluid
injection, splashing in the eyes or on the skin,
injury from moving parts if you are adjusting or
repairing the pump, and explosion from static
sparking.
The air bleed device relieves air trapped
between it and the air motor after the air supply
is shut off. Trapped air can cause the air motor
to cycle unexpectedly, causing serious injury if
you are adjusting or repairing the pump. Use a
bleed-type master air valve (J). Install them
near the pump air inlet within easy reach from
the pump.
The fluid drain valve (K) assists in relieving fluid
pressure in the displacement pump, hoses, and
dispensing valve. Triggering the valve to relieve
pressure may not be sufficient.
The ground wire (B) reduces the risk of static
sparking.
WARNING
CAUTION
Do not hang the air accessories directly on the air
inlet. The fittings are not strong enough to support
the accessories and may cause one or more to
break. Provide a bracket on which to mount the
accessories.
NOTE: Install the air line accessories in the order
shown in Fig. 2.
1. Install a pump runaway valve (G) to shut off the air
to the pump if the pump accelerates beyond the
pre-adjusted setting. A pump that runs too fast can
be seriously damaged.
2. Install an air line lubricator (F) for automatic air
motor lubrication.
3. Install a bleed-type master air valve (J) to relieve
air trapped between the valve and the motor (see
WARNING at left). Order Part No. 107142.
4. Install the air regulator (C) to control pump speed
and pressure (see WARNING at left).
5. Install an air line filter (E) to remove harmful dirt
and contaminants from your compressed air
supply.
6. Install a second bleed-type master air valve (J)
upstream from all other accessories, to isolate the
accessories for servicing.

8 308883
Operation
Pressure Relief Procedure
INJECTION HAZARD
The equipment stays pressurized until
pressure is manually relieved. To reduce
the risk of serious injury from
pressurized fluid, fluid from the valve or splashing
fluid, follow this procedure whenever you
Are instructed to relieve pressure
Stop dispensing
Check, clean or service any system equipment
Install or clean dispensing devices
WARNING
1. Close the pump air regulator and the bleed-type
master air valve (required in your system).
2. Hold a metal part of the dispensing valve firmly to
a grounded metal waste container and trigger the
valve to relieve the fluid pressure.
Startup
1. If there are multiple pumps on the air line, close
the air regulators and bleed-type master air valves
to all but one pump. If there is only one pump,
close its air regulator and bleed-type master air
valve.
2. Open the master air valve from the compressor.
3. Open the dispensing valve into a grounded metal
waste container, making firm metal-to-metal
contact between the container and valve. Open the
bleed-type master air valve and open the pump air
regulator slowly, just until the pump is running.
When the pump is primed and all air has been
pushed out of the lines, close the dispense valve.
4. If you have more than one pump, repeat this
procedure for each pump.
NOTE: When the pump is primed, and with sufficient
air supplied, the pump starts when the dispensing
valve is opened and shuts off when it is closed.
5. Set the air pressure to each pump at the lowest
pressure needed to get the desired results.
COMPONENT RUPTURE HAZARD
The maximum working pressure of each
component in the system may not be the
same. To reduce the risk of
overpressurizing any component in the system, be
sure you know the maximum working pressure of
each component. Never exceed the maximum
working pressure of the lowest rated component in
the system. Overpressurizing any component can
result in rupture, fire, explosion, property damage,
and serious injury.
The pump has a rated ratio of 50:1. However, it is
capable of reaching stall pressures equal to 60
times the air input pressure. Calculate the fluid
output pressure using the air regulator reading.
Multiply the air pressure shown on the regulator
gauge by 60. For example:
140 psi air x 60 = 8400 psi fluid output
0.97 MPa air x 60 = 58.2 MPa fluid output
9.7 bar air x 60 = 582 bar fluid output
Regulate air to the pump so that no air line or fluid
line component or accessory is overpressurized.
WARNING
6. Never allow the pump to run dry of the material
being pumped.
CAUTION
A dry pump will quickly accelerate to a high speed,
possibly damaging itself. If your pump accelerates
quickly, or is running too fast, stop it immediately and
check the material supply. If the supply container is
empty and air has been pumped into the lines, prime
the pump and lines with material, or flush it and leave
it filled with a compatible solvent. Be sure to elimi-
nate all air from the material lines.
NOTE: A pump runaway valve (G) can be installed on
the air line to automatically shut off the pump if it starts
to run too fast.
7. Read and follow the instructions supplied with
each component in your system.
8. To shut off the system, always follow the Pressure
Relief Procedure at the left.

9
308883
Troubleshooting
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
Relieve pressure before you check or service any
system equipment.
MOVING PARTS HAZARD
Never operate the pump with the
warning plate or the identification plate
removed. These plates protect your
fingers from pinching or amputation by moving
parts in the air motor.
WARNING
Problem Cause Solution
Pump fails to operate Inadequate air supply pressure or
restricted air lines
Increase air supply and/or
clear restriction.
Closed or clogged pump valves Open and/or clean.
Clogged fluid line, hose, valve, or
other accessory
Relieve pressure.
Clear obstruction.
Damaged air motor Assess damage, and service
air motor.
Exhausted fluid supply Refill and reprime or flush.
Continuous air exhaust Worn or damaged air motor
gasket or seal
Assess wear or damage,
and service air motor.
Erratic pump operation Exhausted fluid supply Refill and reprime or flush
Worn pump seals Replace.
Damaged shovel tube Replace.
Damaged check seat Replace pump piston or
shovel rod (or other dam-
aged part).
Pump operates, but output low on
up stroke
Worn piston seal Replace.
Damaged upper check seat Replace pump piston.
Pump operates, but output low on
down stroke
Worn fluid intake seal Replace.
Damaged lower check seat Replace shovel rod.
Pump operates, but output low on
both strokes
Inadequate air supply pressure or
restricted air lines
Increase air supply and/or
clear restriction.
Closed or clogged pump valves Open and/or clean.
Exhausted fluid supply Refill fluid supply, and
reprime pump.
Clogged fluid line, hose, valve, or
other accessory
Relieve pressure.
Clear obstruction.
Worn seals Replace.
Grease leaking from muffler plates Worn throat seal Replace.

10 308883
Displacement Pump Service
Be sure you have all necessary parts on hand
before you start. If using a repair kit, use all the
parts in the kit for the best results.
Displacement Pump Repair Kit 241623 is available.
Parts included in the kit are marked with a
dagger () in the parts drawing and list.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 8.
1. Flush the pump.
2. Relieve the pressure before you proceed.
3. Disconnect the hoses, remove the pump from its
mounting, and clamp the air motor base (5) in a
vise.
CAUTION
To avoid damaging the shovel tube, do not use
slots in the tube to tighten or loosen tube.
4. Use strap wrench to screw shovel tube (67) off of
pump cylinder (59).
5. Use strap wrench to screw shovel (66) off of
shovel rod (58).
6. Use strap wrench on pump cylinder (59) to screw it
out of extension tube (64). Screw tube connector
(63) out of pump cylinder. Remove bearing (61)
and seal (62).
7. Screw the shovel rod (58) out of the piston (52).
Remove the lower ball (56). Screw the piston out
of the extension rod (57). Remove the upper ball
(56), retaining washer (53), and seal (54).
8. Clean all the parts in a compatible solvent and
inspect them for wear or damage. Use all the parts
in the repair kit, and replace other parts as
necessary.
9. Generously lubricate all the parts with light
water-resistant grease and reassemble the pump.
NOTES:
Torque the shovel tube (67) to the pump cylinder
(59) at 45 to 55 ft-lb (61 to 75 N-m), and torque the
pump cylinder (59) to the extension tube (64) at
45 to 55 ft-lb (61 to 75 N-m).
Torque the shovel rod (58) to the piston (52) at 25
to 30 ft-lb (34 to 41 N-m), and torque piston (52) to
the extension rod (57) at 25 to 30 ft-lb (34 to 41
N-m).
10. If the ground wire was disconnected before
servicing, be sure to reconnect it before you
operate the pump.