Instructions - Parts
®
Merkur Pump
Assembly
312794E
ENG
For high-performance finishing and coating applications in hazardous or non-hazardous
locations. For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
ing pressure.
TI12811a
ll 2 G
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Pump Part Number Matrix
Pump Part Number Matrix
ID
Check your pump’s identification plate (ID) for the 6-digit part number.
Use the following matrix to define the construction of your pump, based
on the six digits. For example, Part No. W 1 5 A A S represents a wet cup
pump (W), 15 to 1 ratio (15), 25 cc lower (A), 3 UHMWPE/2 PTFE pack-
ings with chromex rod coating, no data monitoring, low noise exhaust
(A), and stainless steel construction (S).
ti12922a
W
15
A
A
S
Second and
Third Digits
(pressure
Fifth Digit
(Packings - X UHMWPE:X PTFE/
Piston Rod Coating/
Fourth Digit
(Displacement pump
volume per cycle*)
Sixth Digit
(lower
material)
First Digit
(Wet cup) ratio - XX:1)
Data Monitoring/Exhaust)
W
10
A
25 cc
A
3:2/Chromex/No Monitoring/Low Noise S Stainless
steel
™
15
18
B
C
50 cc
75 cc
B
E
3:2/Chromex/DataTrak /Low Noise
™
3:2/Chromex/DataTrak Cycle Count
Only/Low Noise
23
24
28
30
36
45
48
D
E
F
100 cc
125 cc
150 cc
* Cycle refers to combination of one upstroke and one downstroke.
312794E
3
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Pump Models
Pump Models
Maximum Fluid
Flow Rate
Air
Motor
Displacement Working Pressure at 60 cpm
Fluid
Inlet
Fluid
Outlet
Model, Series
Pump
psi (MPa, bar)
gpm (lpm)
Air Inlet
W10CAS, Series A M04LN0
W10CBS, Series A M04LT0
W15AAS, Series A M02LN0
W15BAS, Series A M04LN0
W15BBS, Series A M04LT0
W15FAS, Series A M12LN0
W15FBS, Series A M12LT0
W18EAS Series A M12LN0
W18EBS, Series A M12LT0
W23DAS, Series A M12LN0
W23DBS, Series A M12LT0
W24FAS, Series A M18LN0
W24FBS, Series A M18LT0
W28EAS, Series A M18LN0
W28EBS, Series A M18LT0
W30AAS, Series A M04LN0
W30ABS, Series A M04LT0
W30CAS, Series A M12LN0
W30CBS, Series A M12LT0
W36DAS, Series A M18LN0
W36DBS, Series A M18LT0
W45BAS, Series A M12LN0
W45BBS, Series A M12LT0
W48CAS, Series A M18LN0
W48CBS, Series A M18LT0
LW075A
LW025A
LW050A
1000 (6.9, 69)
1.2 (4.5)
0.4 (1.5)
0.8 (3.0)
3/4 in. npt 3/8 in. npt 1/4 npt(f)
1/2 in. npt 3/8 in. npt 1/4 npt(f)
3/4 in. npt 3/8 in. npt 1/4 npt(f)
1500 (10.3, 103)
1500 (10.3, 103)
LW150A
LW125A
LW100A
LW150A
LW125A
LW025A
LW075A
LW100A
LW050A
LW075A
1500 (10.3, 103)
1800 (12.4, 124)
2300 (15.8, 158)
2400 (16.5, 165)
2800 (19.3, 193)
3000 (20.7, 207)
3000 (20.7, 207)
3600 (24.8, 248)
4500 (31.0, 310)
4800 (33.1, 331)
2.4 (9.0)
2.0 (7.5)
1.6 (6.0)
2.4 (9.0)
2.0 (7.5)
0.4 (1.5)
1.2 (4.5)
1.6 (6.0)
0.8 (3.0)
1.2 (4.5)
1 in. npt 3/4 in. npt 1/2 npt(f)
1 in. npt 1/2 in. npt 1/2 npt(f)
3/4 in. npt 3/8 in. npt 1/2 npt(f)
1 in. npt 3/4 in. npt 1/2 npt(f)
1 in. npt 1/2 in. npt 1/2 npt(f)
1/2 in. npt 3/8 in. npt 1/4 npt(f)
3/4 in. npt 3/8 in. npt 1/2 npt(f)
3/4 in. npt 3/8 in. npt 1/2 npt(f)
3/4 in. npt 3/8 in. npt 1/2 npt(f)
3/4 in. npt 3/8 in. npt 1/2 npt(f)
4
312794E
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Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
•
•
Use equipment only in well ventilated area.
Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
•
•
Keep work area free of debris, including solvent, rags and gasoline.
Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
•
•
•
•
Ground all equipment in the work area. See Grounding instructions.
Use only grounded hoses.
Hold gun firmly to side of grounded pail when triggering into pail.
If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
•
Keep a working fire extinguisher in the work area.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
•
•
Do not operate the unit when fatigued or under the influence of drugs or alcohol.
Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
•
•
Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS forms from distributor or retailer.
Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.
•
•
•
•
•
•
Do not alter or modify equipment.
Use equipment only for its intended purpose. Call your distributor for information.
Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
Do not kink or over bend hoses or use hoses to pull equipment.
Keep children and animals away from work area.
Comply with all applicable safety regulations.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
•
•
•
•
•
•
Do not point gun at anyone or at any part of the body.
Do not put your hand over the spray tip.
Do not stop or deflect leaks with your hand, body, glove, or rag.
Do not spray without tip guard and trigger guard installed.
Engage trigger lock when not spraying.
Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
312794E
5
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Related Manuals
WARNING
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
•
Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
•
•
Tighten all fluid connections before operating the equipment.
Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
•
•
•
Keep clear of moving parts.
Do not operate equipment with protective guards or covers removed.
Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
•
•
•
Read MSDS’s to know the specific hazards of the fluids you are using.
Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
Always wear impervious gloves when spraying or cleaning equipment.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
•
•
•
•
Protective eyewear
Clothing and respirator as recommended by the fluid and solvent manufacturer
Gloves
Hearing protection
Related Manuals
Manual Description
312792 Merkur Displacement Pump
™
312796
NXT Air Motor
312797 Merkur Non-Heated Spray Packages
Merkur Electrostatic Spray Packages,
Ambient and Heated
312798
313255 Merkur Heated Spray Packages
6
312794E
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Component Identification
Component Identification
N
A
K
L
J
H
D
B
M
G
F
E
ti11700a
FIG. 1. Component Identification
Key:
A
B
C
D
E
F
G
H
J
Ground Wire
TSL Reservoir
Wet Cup (not visible, under TSL reservoir)
Fluid Outlet
Fluid Inlet
Lower Cylinder
Upper Cylinder
Tie Rod Shield
Displacement Pump Adapter
Tie Rod
K
L
Coupling Nut
M
N
Jam Nut
Air Motor
312794E
7
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Installation
Installation
attached and tightened securely to the air motor. Con-
nect the other end of the ground wire (U) to a true earth
ground.
General Information
Reference numbers and letters in parentheses in
the text refer to the callouts in the figures and the
parts drawing.
U
Always use Genuine Graco Parts and Accessories,
available from your Graco distributor. If you supply
your own accessories, be sure they are adequately
sized and pressure-rated for your system.
ti12914a
GS
Prepare the Operator
FIG. 2. Ground screw and wire
All persons who operate the equipment must be trained
in the operation of all system components as well as the
proper handling of all fluids. All operators must thor-
oughly read all instruction manuals, tags, and labels
before operating the equipment.
Air and fluid hoses: Static electricity may build up
when fluids flow through pumps, hoses, and sprayers. At
least one hose must be electrically conductive, with a
maximum of 500 ft. (150 m) combined hose length to
ensure grounding continuity. Check electrical resistance
of hose. If total resistance to ground exceeds 25 meg-
ohms, replace hose immediately.
Prepare the Site
Ensure that you have an adequate compressed air
supply.
Air compressor: follow manufacturer’s recommenda-
tions.
Bring a compressed air supply line from the air com-
pressor to the pump location. Be sure all air hoses are
properly sized and pressure-rated for your system. Use
only electrically conductive hoses.
Spray gun / Dispense valve: Ground the spray gun
through connection to a Graco-approved grounded fluid
hose.
Fluid supply container: follow local code.
Object being sprayed: follow local code.
Keep the site clear of any obstacles or debris that could
interfere with the operator's movement.
Have a grounded, metal pail available for use when
flushing the system.
Solvent pails used when flushing: follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a nonconductive sur-
face, such as paper or cardboard, which interrupts
grounding continuity.
Grounding
To maintain grounding continuity when flushing or
relieving pressure: hold metal part of the spray
gun/dispense valve firmly to the side of a grounded
metal pail, then trigger the gun/valve.
The equipment must be grounded. Grounding reduces
the risk of static and electric shock by providing an
escape wire for the electrical current due to static build
up or in the event of a short circuit.
8
312794E
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Installation
•
•
•
Pump air regulator (H): controls pump speed and
outlet pressure. Locate it close to the pump.
Mount the Pump
Mount the pump only to Graco wall bracket 15T795, or
to a Graco cart, available from your distributor. Pump
pumps, follow these guidelines:
Air line filter (B): removes harmful dirt and mois-
ture from compressed air supply.
Air shutoff valve (A): isolates air line accessories
for servicing. Locate upstream from all other air line
accessories.
1. Be sure the wall can support the weight of the
pump, bracket, hoses and accessories, as well as
the stress caused during operation.
•
Gun air regulator (D): controls air pressure to the
air-assisted spray gun.
2. Position the wall bracket about 1.2-1.5 m (4-5 ft)
above the floor. For ease of operation and service,
make sure the pump air inlet, fluid inlet, and fluid
outlet ports are easily accessible.
Fluid Line
•
Fluid filter (P): with a 60 mesh (250 micron) stain-
less steel element to filter particles from the fluid as
it leaves the pump.
3. Using the wall bracket as a template, drill 10 mm
(0.4 in.) mounting holes in the wall. Wall mounting
•
•
Fluid drain valve (W): required in your system, to
relieve fluid pressure in the hose and gun.
4. Attach the bracket to the wall. Use 9 mm (3/8 in.)
screws that are long enough to keep the pump from
vibrating during operation.
Gun or valve (L): dispenses the fluid. The gun
shown in FIG. 3 is an air-assisted spray gun for light
to medium viscosity fluids.
NOTE: Be sure the bracket is level.
•
•
Fluid line swivel (K): for easier gun movement.
Air and Fluid Hoses
Be sure all air hoses (N) and fluid hoses (M) are prop-
erly sized and pressure rated for your system. See FIG.
3. Use only electrically conductive fluid hoses.
Suction kit (V): enables the pump to draw fluid from
a container.
Accessories
Install the following accessories in the order shown in
FIG. 3, using adapters as necessary.
Air Line
•
Bleed-type master air valve (E): required in your
system to relieve air trapped between it and the air
motor and gun when the valve is closed.
Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing or
moving parts.
Be sure the valve is easily accessible from the pump
and located downstream from the air regulator.
312794E
9
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Installation
Typical Installation
A
B
C
D
E
F
G
H
J
Air Shutoff Valve
L
Air-Assisted Spray Gun
Gun Fluid Supply Hose
Gun Air Supply Hose
Fluid Filter
Pump Fluid Outlet
Grounding Wire
Pump Fluid Inlet
Suction Hose
Air Filter (optional accessory)
Gun Air Pressure Gauge
Gun Air Pressure Regulator
Bleed Type Master Air Valve
DataTrak
Pump Air Pressure Gauge
Pump Air Pressure Regulator
Solenoid Release Button
(not visible)
M
N
P
R
S
T
U
V
W
Fluid Drain Valve
K
Gun Swivel
A
B
F
C
D
G
H
J
E
S
T
G15 Spray Gun Shown
with Supply Hose
P
R
L
N
U
W
K
M
V
ti12800a
FIG. 3. Typical Installation. (Graco Cart-Mounted Package Shown.)
10
312794E
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Operation
Operation
Pressure Relief Procedure
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing or
moving parts.
Wet Cup
1. Engage the trigger lock.
2. Close the bleed-type master air valve.
3. Disengage the trigger lock.
Before starting, fill wet cup (T) 1/3 full with Graco Throat
Seal Liquid (TSL) or compatible solvent.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to spray
again.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after follow-
ing the steps above, VERY SLOWLY loosen tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.
T
ti11927a
FIG. 4. Fill Wet Cup
Flush Before Using Equipment
The equipment was tested with lightweight oil, which is
left in the fluid passages to protect parts. To avoid con-
taminating your fluid with oil, flush the equipment with a
compatible solvent before using the equipment. See
312794E
11
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Operation
12. Use the air regulator to control the pump speed and
the fluid pressure. Always use the lowest air pres-
sure necessary to get the desired results. Higher
pressures cause premature tip/nozzle and pump
wear.
Prime and Adjust the Pump
1. Lock gun trigger. Remove tip guard and spray tip
from gun. Refer to gun manual.
2. Close gun air regulator and pump air regulator (H)
by turning knobs counterclockwise reducing pres-
sure to zero. Close bleed-type air valve (E). Also
verify that all drain valves are closed.
NOTICE
Never allow the pump to run dry of the fluid being
pumped. A dry pump quickly accelerates to a high
speed, possibly damaging itself. If your pump accel-
erates quickly, or is running too fast, stop it immedi-
ately and check the fluid supply. If the supply
container is empty and air has been pumped into
the lines, refill the container and prime the pump
and the lines with fluid, or flush and leave it filled
with a compatible solvent. Be sure to eliminate all
air from the fluid system.
3. Check that all fittings throughout system are tight-
ened securely.
4. Position pail close to pump. Do not stretch suction
hose tight/let it hang to assist fluid flow into pump.
Shutdown and Care of the Pump
Stop the pump at the bottom of its stroke to prevent fluid
from drying on the exposed displacement rod and dam-
aging the throat packings.
D
For a longer shutdown, or overnight, always flush the
pump before the fluid dries on the displacement rod.
E
H
ti11882a
FIG. 5
5. Hold metal part of gun (L) firmly to side of grounded
metal pail, unlock trigger, and hold trigger open.
6. Pumps with runaway protection: Enable the
prime/flush function by pushing the prime/flush but-
ton on the DataTrak.
7. Open bleed-type air valve (E). Slowly open the
pump air regulator (H) until the pump starts.
8. Cycle pump slowly until all air is pushed out and the
pump and hoses are fully primed.
9. Pumps with runaway protection: Disable the
prime/flush function by pushing the prime/flush but-
ton on the DataTrak.
10. Release gun trigger and lock trigger safety. Pump
should stall against pressure.
11. 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.
12
312794E
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Maintenance
3. Place siphon tube in grounded metal pail containing
cleaning fluid.
Maintenance
4. Set pump to lowest possible fluid pressure, and start
pump.
Preventive Maintenance
Schedule
The operating conditions of your particular system
determine how often maintenance is required. Establish
a preventive maintenance schedule by recording when
and what kind of maintenance is needed, and then
determine a regular schedule for checking your system.
5. Hold a metal part of the gun firmly to a grounded
metal pail.
6. Units with runaway protection only: enable the
prime/flush function by pushing the prime/flush but-
ton on the DataTrak.
7. Trigger gun. Flush system until clear solvent flows
from gun.
Tighten Threaded Connections
Before each use, check all hoses for wear or damage.
Replace as necessary. Check that all threaded connec-
tions are tight and leak-free.
8. Units with runaway protection only: disable the
prime/flush function by pushing the prime/flush but-
ton on the DataTrak.
Flush the Pump
10. Clean the tip guard, spray tip, and fluid filter element
separately, then reinstall them.
11. Clean inside and outside of suction tube.
Read all Warnings. Follow all Grounding instructions.
See page 8.
Wet Cup
Fill the wet cup one-half full with Graco Throat Seal Liq-
uid (TSL). Maintain level daily.
Flush the pump:
•
•
•
•
Before first use
When changing colors or fluids
Before repairing equipment
Before fluid dries or settles out in a dormant pump
(check the pot life of catalyzed fluids)
•
•
At the end of the day
Before storing the pump.
Flush at the lowest pressure possible. 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.
2. Remove tip guard and spray tip from gun. Refer to
separate gun manual.
312794E
13
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Troubleshooting
Troubleshooting
NOTE: Check all possible problems and causes before
disassembling the pump.
Relieve the pressure before checking or servicing
the equipment.
Problem
Cause
Restricted air supply lines.
Solution
Pump output low on both strokes.
Clear any obstructions; be sure all shutoff
valves are open; increase pressure, but do
not exceed maximum working pressure.
Exhausted fluid supply.
Refill and reprime pump.
Clear.
Clogged fluid outlet line, valves, etc.
Worn piston packing.
Replace. See displacement pump manual
312792.
Pump output low on only one stroke.
Held open or worn ball check valves.
Worn piston packings.
Check and repair.
Replace.
No output.
Improperly installed ball check valves. Check and repair.
Pump operates erratically.
Exhausted fluid supply.
Refill and reprime pump.
Held open or worn ball check valves.
Worn piston packing.
Check and repair.
Replace.
Pump will not operate.
Restricted air supply lines.
Clear any obstructions; be sure all shut off
valves are open; increase pressure, but do
not exceed maximum working pressure.
Exhausted fluid supply.
Refill and reprime pump.
Clear.
Clogged fluid outlet line, valves, etc.
Damaged air motor.
See air motor manual 312796.
Fluid dried on piston rod.
Disassemble and clean pump. See page 15
and manual 312792. In future, stop pump at
bottom of stroke.
Runaway solenoid has tripped.
Retract solenoid. See air motor manual
312796.
14
312794E
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Repair
Repair
6. Lower the coupling nut (9) enough to remove the
coupling collars (10), and then remove the coupling
nut (9).
9
10
General Information
•
Reference numbers and letters in parentheses in
the text refer to the callouts in the figures and the
parts drawing.
•
Always use Genuine Graco Parts and Accessories,
available from your Graco distributor. If you supply
your own accessories, be sure they are adequately
sized and pressure rated for your system.
ti12812a
ti12813a
7. Pull up on TSL reservoir (7) to remove.
8. Use a hammer and
brass rod to loosen the
jam nut (4). Unscrew
the jam nut as far as
possible.
Disconnect the Displacement
Pump
1. Stop the pump in the middle of the stroke.
9. Unscrew the displace-
ment pump by hand
and place on work
bench.
3. Disconnect the air and fluid hoses and the ground
wire (13).
ti12816a
4. Remove the tie rod shield (11).
5. Hold the flats of the air
motor piston rod with a
wrench. Use another
wrench to loosen the
coupling nut (9).
Threads are very sharp. Use a rag to protect hands
when hand turning or carrying the pump.
ti12815a
312794E
15
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Repair
6. Align fluid outlet as shown and tighten the jam nut.
Reconnect the Displacement
Pump
7. Align the TSL reservoir (7) and push it down into
place.
1. Tilt the air motor onto its back, then hand turn the
displacement pump into the adapter plate. Set the
pump upright again.
8. Hold the flats of the motor rod with a wrench. Use
another wrench to tighten the coupling nut (9).
Torque according to the following table.
2. Hold the air motor piston rod up with one hand. With
your other hand, put the coupling nut (9) on the dis-
placement rod.
Displacement Pump
LW025A
Torque
23-26 ft-lb (31-35 N•m)
3. Put the coupling
collars (10) into
the coupling nut
(9) so large
75-80 ft-lb (102-108 N•m)
LW050A–LW150A
10
flanges point
upward.
9
4. Gently let the air
motor piston rod
drop onto the dis-
placement rod.
ti12817a
Hand tighten the
coupling nut (9).
5. Screw the displacement pump into the adapter plate
(3) until the cylinder top is flush with the top of the
adapter plate.
Cylinder, not
wet cup, should
be flush with
plate.
ti12814a
FIG. 6. Align cylinder and adapter plate.
16
312794E
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Repair
Disconnect the Air Motor
See manual 312796 for air motor service and parts
information,
Reconnect the Air Motor
1. Slide the drip shield (12) onto the tie rods (5).
2. Disconnect the air and fluid hoses, the ground wire
(13), and the tie rod shield (11).
3. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to loosen the coupling
nut (9).
2. Screw the tie rods (5) into the bottom cover of the air
motor. Torque according to the following table:
Motor
M02xxx
Torque
4. Use a socket to remove the tie rod nuts (6): 13 mm
for M02xxx, 23 mm for all others.
5-10 ft-lb (7-13.5 N•m)
5. Use a 13 mm socket to remove the top two mount-
ing screws (MS).
50-55 ft-lb (68-75 N•m)
All Other Sizes
6. Lift up on the air motor to remove it. The tie rods (5)
and drip shield (12) will remain attached.
3. As needed for the larger air motors, use two people
to reattach. Align the tie rods (5) with the holes in
the pump adapter (3). Carefully lower the air motor
into place.
Cart Mount: Remove the two screws on the arms
and tip back or remove the air control panel for eas-
ier removal of the air motor.
4. Attach the tie rod nuts (6) and torque according the
following table:
Motor
M02xxx
Torque
15-20 ft-lb (20-27 N•m)
MS
5
50-60 ft-lb (68-81 N•m)
All Other Sizes
6
5. Tighten the mounting screws.
6. Hand tighten the coupling nut, then torque accord-
ing to the following table:
Motor
M02xxx
Torque
11
23-26 ft-lb (31-35 N•m)
75-80 ft-lb (102-108 N•m)
All Other Sizes
ti12819a
7. Connect the air and fluid hoses, the ground wire,
and the tie rod shield.
7. Slide the drip shield (12) off
the tie rods (5).
8. Use a socket on the flats of
the tie rods (5) to remove
them from the bottom cover of
the air motor.
12
ti12916a
312794E
17
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Pump Parts
Pump Parts
1
2
3
Torque varies by air motor size.
M02xxx: 5-10 ft-lb (7-13.5 N•m)
All others: 50-55 ft-lb (68-75 N•m)
Torque varies by air motor size.
M02xxx: 15-20 ft-lb (20-27 N•m)
All others: 50-60 ft-lb (68-81 N•m)
1
Torque varies by displacement pump size.
25 cc: 23-26 ft-lb (31-35 N•m)
All others: 75-80 ft-lb (102-108 N•m)
12*
4
Torque to 70-75 ft-lb (95-102 N•m)
10*
3
9*
8*
7*
1 5*
3*
11*
2
6*
4
4
2
ti12810a
18
312794E
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Pump Parts
Qty
.
Qty
.
Ref. Part No. Description
Ref. Part No. Description
10*
-----
COLLAR, coupling; see page
20 to order package of 10
2
1
2
3*
4
5*
See Table MOTOR
1
1
1
1
See Table DISPLACEMENT PUMP
See Table ADAPTER, pump
See Table NUT, jam
ROD, tie
11*
12*
13*
See Table SHIELD, tie rod
See Table SHIELD, drip
238909
1
1
1
WIRE, grounding assembly, not
shown
15M661
15M662
M02xxx motor
All other motor sizes
3
3
----- Not sold separately.
6*
NUT, tie rod
104541
15U606
M02xxx motor
All other motor sizes
3
3
1
correct kit for your pump.
7*
8*
See Table RESERVOIR, TSL
See Table ADAPTER, 1/2-20 ID X M22 x
1.5 OD
NOTE: Replacement Warning labels, signs, tags, and
cards are available at no cost.
9*
NUT, coupling
15M758
15T311
LW025x displacement
pumps
All other pump sizes
1
1
Parts That Vary by Model
Motor
Tie Rod
Piston
TSL Reservoir
JamNut (7, includes
Shield
Motor Diam. Displacement
Pump
Adapter (11, includes Drip Shield
Model
(1)
(in.)
Pump (2)
Adapter (3)
(4)
o-ring)
(8)
screw)
(12)
W10CAS M04LN0
W10CBS M04LT0
3.5
LW075A
15R978
24A636
24A623
15M675
24A958
15T462
W15AAS
M02LN0
W15AES
2.5
3.5
6.0
6.0
6.0
7.5
7.5
3.5
6.0
7.5
6.0
7.5
LW025A
LW050A
LW150A
LW125A
LW100A
LW150A
LW125A
LW025A
LW075A
LW100A
LW050A
LW075A
15R862
15R977
15T395
15T394
15T393
15T395
15T394
15R863
15T392
15T393
15T391
15T392
24A634
24A635
24A639
24A638
24A637
24A639
24A638
24A634
24A636
24A637
24A635
24A636
24A620
24A622
24A628
24A627
24A626
24A628
24A627
24A621
24A625
24A626
24A624
24A625
24A957
24A958
24A959
24A959
24A959
24A959
24A959
24A958
24A959
24A959
24A959
24A959
15T461
15T462
15V028
15V028
15V028
15V028
15V028
15T462
15V028
15V028
15V028
15V028
W15BAS M04LN0
W15BBS M04LT0
W15FAS M12LN0
W15FBS M12LT0
W18EAS M12LN0
W18EBS M12LT0
W23DAS M12LN0
W23DBS M12LT0
W24FAS M18LN0
W24FBS M18LT0
W28EAS M18LN0
W28EBS M18LT0
W30AAS M04LN0
W30ABS M04LT0
W30CAS M12LN0
W30CBS M12LT0
W36DAS M18LN0
W36DBS M18LT0
W45BAS M12LN0
W45BBS M12LT0
W48CAS M18LN0
W48CBS M18LT0
15M675
312794E
19
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Repair Kits
Repair Kits
LW025A
LW050A
LW075A
2.5 in.
motor
3.5 in.
motor
3.5 in.
motor
6-7.5 in
motor
3.5 in.
motor
6-7.5 in
Kit Description
motor LW100A LW125A LW150A
Wet-Cup O-Ring
Package of 10
24A630
24A631
24A631
24A619
24A632
24A619
24A633 24A633
24A619 24A619
Coupling Collars (10)
Package of 10
24A618
24A619
Connecting Kit
Includes pump adapter (3),
three tie rods (5), three tie rod
nuts (6), TSL reservoir and
o-ring (7), adapter (8),
coupling nut (9), two coupling
collars (10), tie rod shield and
screw (11), and drip shield
(12).
24A281 24A282
24A283 24A285
24A284 24A286 24A287
24A288 24A289
NOTE:
For displacement pump repair kits, see manual 312792.
For air motor repair kits, see manual 312796.
20
312794E
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Performance Charts
Performance Charts
Model W10xxx
10:1 Ratio, 75 cc/cycle
Cycles per Minute
10
40
20
30
50
60
1000
(7, 70)
16
(0.45)
A
14
(0.4)
800
(5.5, 55)
12
A
(0.34)
10
600
(0.28)
B
C
(4, 40)
8
(0.23)
B
400
6
(3, 30)
(0.17)
C
4
(0.1)
200
(1.4, 14)
2
(.06)
0
0.2
0.6
1.0
(3.8)
1.2
0.4
0.8
(3.0)
0
(4.5)
(2.3)
(0.75)
(1.5)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
Model W15Axx
15:1 Ratio, 25 cc/cycle
Cycles per Minute
= air consumption
15
38
45
53
8
23
30
1400
(10, 100)
A
9
(0.25)
8
1200
(0.23)
(8, 80)
7
A
(0.2)
1000
(7, 70)
B
6
(0.17)
800
5
(0.14)
(5.5, 55)
B
C
4
600
(0.1)
(4, 40)
C
3
(.08)
400
(3, 30)
2
(.06)
200
(1.4, 14)
1
(.03)
0
0.05
0
0.1
0.2
0.25
(0.9)
0.35
(1.3)
0.15
(0.6)
0.3
(0.4)
(0.2)
(0.75)
(1.1)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
312794E
21
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Performance Charts
Model W15Bxx
15:1 Ratio, 50 cc/cycle
Cycles per Minute
23
45
53
61
8
15
30
38
18
1600
(0.5)
(11, 110)
16
1400
(0.45)
A
(10, 100)
14
A
1200
(0.4)
(8, 80)
12
(0.34)
1000
(7, 70)
10
B
(0.28)
B
800
(5.5, 55)
8
(0.23)
600
(4, 40)
6
(0.17)
C
400
C
4
(3, 30)
(0.1)
200
(1.4, 14)
2
(.06)
0
0.3
(1.1)
0.7
0.4
0.8
0.2
0
0.1
(0.4)
0.5
(1.9)
0.6
(2.3)
(0.8)
(1.5)
(2.6)
(3.0)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
= air flow
Model W15Fxx
15:1 Ratio, 150 cc/cycle
Cycles per Minute
25
13
38
51
63
1600
(11, 110)
40
1400
(10, 100)
A
(1.1)
A
1200
(8, 80)
30
1000
(0.9)
(7, 70)
B
800
(5.5, 55)
20
(0.6)
C
B
600
(4, 40)
C
400
10
(3, 30)
(0.3)
200
(1.4, 14)
0
0.5
0
1.0
2.0
2.5
1.5
(1.9)
(3.8)
(9.5)
(5.7)
(7.6)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
22
312794E
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Performance Charts
Model W18xxx
18:1 Ratio, 125 cc/cycle
Cycles per Minute
30
45
15
61
2000
(14, 140)
40
(1.1)
A
A
1600
(11, 110)
30
(0.9)
B
1200
(8, 80)
B
20
(0.6)
C
800
(5.5, 55)
C
400
10
(0.3)
(3, 30)
0
0.5
0
1.0
(3.8)
2.0
1.5
(1.9)
(7.6)
(5.7)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
= air flow
Model W23xxx
23:1 Ratio, 100 cc/cycle
Cycles per Minute
23
45
53
61
8
15
30
38
3000
(21, 210)
40
2500
(1.1)
(17, 170)
A
A
B
30
2000
(0.9)
(14, 140)
B
1500
(10, 100)
20
(0.6)
C
1000
(7, 70)
C
10
(0.3)
500
(3, 30)
0
0.2
0.4
1.0
1.2
1.4
1.6
0.6
0.8
0
(3.8)
(6.1)
(4.5)
(0.75)
(1.5)
(2.3)
(3.0)
(5.3)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
312794E
23
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Performance Charts
Model W24xxx
24:1 Ratio, 150 cc/cycle
Cycles per Minute
25
38
63
13
51
70
(2.0)
3000
(21, 210)
A
B
60
2500
(17, 170)
A
2000
(14, 140)
B
(1.7)
50
(1.4)
40
(1.1)
1500
C
(10, 100)
30
(0.9)
1000
(7, 70)
20
(0.6)
C
500
10
(3, 30)
(0.3)
0
2.5
2.0
1.0
1.5
0.5
(1.9)
0
(5.7)
(7.6)
(9.5)
(3.8)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
= air flow
Model W28xxx
28:1 Ratio, 125 cc/cycle
Cycles per Minute
15
30
61
45
3000
60
(21, 210)
(1.7)
A
A
B
2500
50
(17, 170)
(1.4)
40
(1.1)
2000
(14, 140)
B
C
1500
30
(10, 100)
(0.9)
C
1000
(7, 70)
20
(0.6)
500
10
(3, 30)
(0.3)
0
2.5
(9.5)
2.0
1.0
(3.8)
1.5
0.5
(1.9)
0
(7.6)
(5.7)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
24
312794E
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Performance Charts
Model W30Axx
30:1 Ratio, 25 cc/cycle
Cycles per Minute
15
38
45
53
8
23
30
61
18
3000
(0.5)
(21, 210)
16
A
(0.45)
2500
(17, 170)
14
A
(0.4)
12
2000
(0.34)
(14, 140)
B
10
B
C
(0.28)
1500
(10, 100)
8
(0.23)
6
1000
(7, 70)
(0.17)
C
4
(0.1)
500
(3, 30)
2
(.06)
0
0.05
0
0.1
0.3
0.25
(0.9)
0.35
(1.3)
0.4
0.2
0.15
(0.6)
(1.1)
(0.4)
(1.5)
(0.2)
(0.75)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
= air flow
Model W30Cxx
30:1 Ratio, 75 cc/cycle
Cycles per Minute
10
40
20
30
50
60
3500
(24, 240)
40
3000
(1.1)
(21, 210)
A
A
2500
(17, 170)
30
(0.9)
B
2000
B
(14, 140)
20
1500
(0.6)
(10, 100)
C
C
1000
(7, 70)
10
(0.3)
500
(3, 30)
0
0
0.2
0.6
1.2
1.0
(3.8)
0.8
0.4
(4.5)
(2.3)
(0.75)
(3.0)
(1.5)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
312794E
25
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Performance Charts
Model W36xxx
36:1 Ratio, 100 cc/cycle
Cycles per Minute
45
8
15
23
30
38
53
61
60
4000
(1.7)
(28, 280)
3500
(24, 240)
50
A
B
(1.4)
A
3000
(21, 210)
40
(1.1)
2500
(17, 170)
30
2000
(0.9)
(14, 140)
B
C
1500
20
(0.6)
(10, 100)
C
1000
(7, 70)
10
500
(0.3)
(3, 30)
0
0.6
0.8
0.4
1.6
1.4
0.2
1.2
(4.5)
1.0
0
(3.0)
(2.3)
(5.3)
(6.1)
(3.8)
(1.5)
(0.75)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
= air flow
Model W45xxx
45:1 Ratio, 50 cc/cycle
Cycles per Minute
8
15
23
30
38
45
53
61
5000
50
(35, 350)
(1.4)
A
40
(1.1)
4000
A
(28, 280)
3000
30
(21, 210)
B
C
(0.9)
B
20
(0.6)
2000
(14, 140)
C
1000
(7, 70)
10
(0.3)
0
0.5
0.1
0
0.2
0.6
0.8
(3.0)
0.3
0.7
0.4
(1.9)
(1.1)
(2.6)
(0.4)
(2.3)
(0.75)
(1.5)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
26
312794E
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Performance Charts
Model W48xxx
48:1 Ratio, 75 cc/cycle
Cycles per Minute
10
6000
40
20
30
50
60
(42, 420)
60
5000
(1.7)
(35, 350)
A
A
C
50
(1.4)
4000
(28, 280)
40
(1.1)
B
B
3000
(21, 210)
30
(0.9)
C
2000
(14, 140)
20
(0.6)
1000
(7, 70)
10
(0.3)
0
0
0.2
0.6
1.2
1.0
(3.8)
0.8
0.4
(4.5)
(2.3)
(3.0)
(0.75)
(1.5)
Fluid Flow gpm (lpm) tested in No. 10 weight oil
KEY
A
B
C
=
=
=
100 psi (0.7 MPa, 7 bar)
70 psi (0.5 MPa, 5 bar)
40 psi (0.3 MPa, 3 bar)
= fluid flow
= air flow
312794E
27
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Pump Dimensions
Pump Dimensions
D
A
B
C
ti12862a
A
B
C
D
Weight
lbs (kg)
Pump Model
in. (mm)
in. (mm)
in (mm)
in (mm)
W10xxx
W15Axx
W15Bxx
W15Fxx
W18xxx
W23xxx
W24xxx
W28xxx
W30Axx
W30Cxx
W36xxx
W45xxx
W48xxx
24.6 (625)
24.1 (612)
24.0 (610)
25.2 (640)
25.2 (640)
25.1 (638)
25.2 (640)
25.2 (640)
24.1 (612)
25.0 (635)
25.1 (638)
24.5 (622)
25 (635)
5.6 (142)
4.2 (107)
5.6 (142)
8.6 (218)
8.6 (218)
8.6 (218)
10.1 (257)
10.1 (257)
5.6 (142)
8.6 (218)
10.1 (257)
8.6 (218)
10.1 (257)
5.8 (147)
5.1 (130)
7.8 (198)
6.2 (157)
7.8 (198)
11.4 (290)
11.4 (290)
11.4 (290)
12.9 (328)
12.9 (328)
7.8 (198)
11.4 (290)
12.9 (328)
11.4 (290)
12.9 (328)
30 (14)
15 (7)
5.8 (147)
28 (13)
61 (28)
61 (28)
59 (27)
64 (29)
64 (29)
22 (10)
56 (26)
62 (28)
54 (25)
59 (27)
11.7 (297)
11.7 (297)
11.7 (297)
14.8 (375)
14.8 (375)
5.8 (147)
11.7 (297)
14.8 (375)
11.7 (297)
14.8 (375)
28
312794E
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Wall Bracket Mounting Dimensions
Wall Bracket Mounting Dimensions
11 in.
(279 mm)
4 in.
(102 mm)
Four 0.40 in. (10 mm)
mounting holes
ti12833a
Technical Data
Minimum air inlet pressure . . . . . . . . . . . . . . . . . . . . . . . . 10 psi (0.07 MPa, 0.7 bar)
Air consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Performance Charts
Maximum ambient air temperature. . . . . . . . . . . . . . . . . . 120°F (49°C)
Maximum fluid temperature . . . . . . . . . . . . . . . . . . . . . . . 160°F (71°C)
Stroke length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 in. (63.5 mm)
Sound data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Technical Data in air motor manual 312796.
Wetted parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stainless steel, tungsten carbide with 6% nickel,
UHMWPE, PTFE
312794E
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Graco Standard Warranty
Graco warrants all equipment referenced in this document which is 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 procédures concernées.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 312794
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2008, Graco Inc. is registered to ISO 9001
Revised 5/2010
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