Graco 24V672 Use and care manual

Repair - Parts
Stainless Steel 3:1 Pump
333397A
EN
For use in EcoQuip®vapor abrasive blast equipment.
Use only with water, or water with additives to inhibit corrosion or mold.
For professional use only.
Model 24V672
300 psi (2.06 MPa, 20.6 bar) Maximum Fluid Working Pressure
100 psi (0.68 MPa, 6.8 bar) Maximum Air Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
WLD

2333397A
Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Component Identification . . . . . . . . . . . . . . . . . . . . 4
General Information . . . . . . . . . . . . . . . . . . . . . . . . 5
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 5
Wet Cup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preventive Maintenance Schedule . . . . . . . . . . . 6
Tighten Threaded Connections . . . . . . . . . . . . . . 6
Wet Cup Maintenance . . . . . . . . . . . . . . . . . . . . 6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pump Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General Information . . . . . . . . . . . . . . . . . . . . . . 9
Disconnect the Displacement Pump . . . . . . . . . . 9
Reconnect the Displacement Pump . . . . . . . . . 10
Disassemble the Displacement Pump . . . . . . . 10
Reassemble the Displacement Pump . . . . . . . . 11
Pump Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 12
Air Motor Repair . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Disconnect the Air Motor . . . . . . . . . . . . . . . . . . 13
Reconnect the Air Motor . . . . . . . . . . . . . . . . . . 13
Repair Air Valve . . . . . . . . . . . . . . . . . . . . . . . . 13
Replace Pilot Valves . . . . . . . . . . . . . . . . . . . . . 15
Repair Air Motor . . . . . . . . . . . . . . . . . . . . . . . . 15
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pump Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Pump Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 17
Lower Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Lower Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 19
Air Motor Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Air Motor Parts List . . . . . . . . . . . . . . . . . . . . . . 21
Air Valve Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Air Valve Parts List . . . . . . . . . . . . . . . . . . . . . . 22
Air Valve Parts List . . . . . . . . . . . . . . . . . . . . . . 23
Mounting Hole Diagram . . . . . . . . . . . . . . . . . . . . . 24
Air Motor Kits and Accessories . . . . . . . . . . . . . . 25
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Bracket Mount . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 30
Related Manuals
Manual Description
334142 EcoQuip EQ100S Operation and Maintenance Manual -
Vapor Abrasive Blast Equipment
334143 EcoQuip EQ300S-EQ600S Operation and Maintenance Manual -
Vapor Abrasive Blast Equipment

Warnings
333397A 3
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 symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where
applicable.
WARNING
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 from distributor or retailer.
•Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
•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. Alterations or modifications may void agency approvals and create
safety hazards.
•Make sure all equipment is rated and approved for the environment in which you are using it.
•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.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and cause
serious injury.
•Follow the Pressure Relief Procedure when you stop spraying/dispensing 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, cut 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 and disconnect all power sources.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including
eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is
not limited to:
•Protective eyewear, and hearing protection.
•Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

Component Identification
4333397A
Component Identification
F IG . 1. Component Identification
WLD
$
%
&
'
(
)
+
/
0
1
6
.
*
Ref. Description
A Ground Screw
B Enclosed Wet Cup
CWetCupFillPort
D Fluid Outlet
E Fluid Inlet
F Lower Cylinder
G Outlet Housing
H Displacement Rod
KTieRod
L Coupling Nut
M Tie Rod Nut
N Air Motor
S Sight Glass
Ref. Description

General Information
333397A 5
General Information
This pump is designed for water use only.
This pump is intended to be mounted using a bracket to
the frame of the system, which must be connected to
earth ground.
NOTE: Reference numbers and letters in parentheses
in the text refer to the call-outs in the figures and the
parts drawing.
NOTE: Always use Genuine Graco Parts and
Accessories, available from your Graco distributor.
Accessories must be adequately sized and pres-
sure-rated for your system.
NOTE: The equipment was tested with lightweight oil,
which is left in the fluid passages to protect parts.
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
Always de-pressurize the system prior to any repair.
1. Turn pot pressure regulator (PR) off.
2. Turn the compressor OFF and disconnect the air
inlet hose from the system.
3. Turn the 4-way selection (SL) to FILL position.
4. Open the dump valve on the blast tank.
5. Verify that the pot pressure gauge (PG) displays
zero pressure.
See F IG . 2 .
Wet Cup
Before starting, fill wet cup fill port (C) 1/2 full with Graco
Throat Seal Liquid (TSL) or compatible solvent. See
F IG . 3 .
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as splashing fluid and moving
parts, follow the Pressure Relief Procedure when you
stop spraying and before cleaning, checking, or servic-
ing the equipment.
F
IG . 2. System Control Panel
BA
SL
PG PR
F IG . 3. Fill Wet Cup
WLLD
WLD
76/
C

Maintenance
6333397A
Maintenance
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.
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.
Wet Cup Maintenance
Fill the Wet Cup half full with Graco TSL. Maintain level
daily.

Troubleshooting
333397A 7
Troubleshooting
NOTE: Perform Pressure Relief Procedure (page 5)
before checking or servicing the equipment.
NOTE: Check all possible problems and causes before
disassembling the pump.
Pump
Problem Cause Solution
Pump output is low on both strokes. Air supply lines are restricted. Clear any obstructions from the air
lines. Make sure all shutoff valves are
open. Increase the pressure, but do
not exceed the maximum working
pressure.
Fluid supply is empty. Refill and reprime the pump.
Fluid outlet line or valves are
clogged.
Clear the fluid outlet line and valves,
etc.
Throat packings are worn. Replace the throat packings.
Air pressure is insufficient; or the
air valves are closed or clogged.
Open and clean the air valves.
Enclosed wet cup is too loose. Tighten the enclosed wet cup.
Pump output is low on only one
stroke.
Piston packings are worn. Replace the piston packings.
No output. Ball check valves are improperly
installed.
Check and repair the ball check
valves.
Pump operates erratically. Fluid supply is empty. Refill and reprime the pump.
Ball check valves are held open or
worn.
Check and repair the ball check
valves.
Piston packings are worn. Replace the piston packings.
Pump will not operate. Air supply lines are restricted. Clear any obstructions from the air
lines. Make sure all shutoff valves are
open. Increase the pressure, but do
not exceed the maximum working
pressure.
Fluid supply is empty. Refill and reprime the pump.
Fluid outlet line or valves are
clogged.
Clear the fluid outlet line and valves,
etc.
Air pressure is insufficient; or the
air valves are closed or clogged.
Open and clean the air valves.
Air motor is damaged. See Air Motor Repair, page 13.
Dried fluid seizure of the
displacement rod.
See F
IG . 12, page 18. Clean the dis-
placement rod (107). Check or replace
the throat packings. Always stop the
pump at the bottom of the stroke and
keep the wet cup filled with TSL.

Troubleshooting
8333397A
Air Motor
Problem Cause Solution
Air motor will not run. Damaged air valve (214). Replace or service the air valve (214).
See F
IG . 13, page 20.
Damaged pilot valve (213). Replace the pilot valves (213).
See F
IG . 13, page 20.
Air is continuously exhausting
around the air motor piston rod.
Damaged u-cups (207). Replace the piston rod u-cups (207).
See F
IG . 13, page 20.
Air is continuously exhausting from
the muffler.
Damaged air valve plate (313) or
cup (314).
Replace or service the air valve plate
(214). See F
IG . 14, page 22.
Air motor “bounces” at the top of the
stroke.
Damaged bottom pilot valve (213). Replace the bottom pilot valve (213).
See F
IG . 13, page 20.
Air motor “bounces” at the bottom of
the stroke.
Damaged top pilot valve (213). Replace the top pilot valve (213).
See F
IG . 13, page 20.
Icing inside the motor. Air motor is operating at high pres-
sure or at a high cycle rate.
Reduce the pressure, cycle rate, or duty
cycle of motor.
Reduce the dew point of the
compressed air in the moisture
coalescing filter.

Pump Repair
333397A 9
Pump Repair
General Information
•Reference numbers and letters in parentheses in
the text refer to the call-outs in the Component
Identification (page 4) and the Parts section
(pages 17-23).
•Always use Genuine Graco Parts and Accessories,
available from your Graco distributor. Accessories
must be adequately sized and pressure rated for
your system.
Disconnect the Displacement
Pump
1. Flush the pump if possible.
2. Slowly increase the pot pressure until the pump
begins to move, then quickly lower pressure to stop
the pump in the middle of the stroke.
3. Perform the Pressure Relieve Procedure, page 5.
4. Disconnect the air and fluid hoses. Remove the
pump from its mounting.
5. See F
IG . 11, page 17. Unscrew the tie rod nuts (4)
from the tie rods (3). Unscrew coupler and remove
coupler collars. Carefully pull the displacement
pump (2) off of the air motor.
6. Note the relative position of the pump fluid outlet (D)
to the air motor air inlet. See F
IG . 1, page 4.
7. Refer to page 10 for displacement pump service. To
service the air motor, refer to page 13.

Pump Repair
10 333397A
Reconnect the Displacement
Pump
1. See F IG . 13, page 20. Orient the pump fluid outlet
(D) to the air motor air inlet (214) as explained in
step 4 in Disconnect the Displacement Pump
(page 9).
2. See F
IG . 11, page 17. Position the displacement
pump (2) on the tie rods (3).
3. Screw the tie rod nuts (4) onto the tie rods (3)
loosely.
4. Install coupler nut and collars onto displacement
rod. Hold the flats of the air motor position rod with a
wrench. use another wrench to tighten the coupling.
nut (9).
5. See F
IG . 1, page 4. Apply thread sealant to the
pump fluid outlet (D) and the threads of the fluid
hose. Mount the pump and reconnect all hoses.
Reconnect the ground wire if it was disconnected
during repair. Torque the enclosed wet cup (B) to 60
ft-lb (81 N•m). Fill the wet cup fill port (C) with Graco
TSL.
6. Tighten the tie rod nuts (4) evenly, and torque to
15-20 ft-lb (20-27 N•m).
7. Start the pump and run it at approximately 40 psi
(2.8 bar) air pressure, to check that it is operating
properly.
8. Check for fluid leakage at the enclosed wet cup (B).
Perform Pressure Relief Procedure, page 5.
Disassemble the Displacement
Pump
When disassembling the pump, lay out all removed
parts in sequence, to ease reassembly. See page 12.
NOTE: Repair Kit 17B186 (Neoprene/UHMWPE pack-
ings) is available. For the best results, use all of the new
parts in the kit. Parts included in the kit are marked with
one asterisk, for example (1*).
Clean all of the parts thoroughly when disassembling.
Check parts carefully for damage or wear. Replace
parts as needed.
1. Remove the displacement pump from the air motor
as explained on page 9.
2. See F
IG . 12, page 18. Unscrew the locking ring
(117) from the cylinder (111). Remove the intake
valve housing (113).
3. Remove the o-ring (112), ball stop pin (105), ball
guide (122) and ball (102) from the intake valve
housing (113).
4. Loosen the enclosed wet cup (115). Push the dis-
placement rod (107) down as far as possible, then
pull it out from the bottom of the cylinder (111).
5. Secure the flats of the displacement rod (107) in a
vise. Use a wrench on the flats of the piston mount-
ing stud (28), and screw the piston off of the rod.
Remove one cotter pin (101) and the ball stop pin
(110). Take note which set of holes it is in, then
remove the ball (102).
6. Place the flats of the piston mounting stud (128) in a
vise, and unscrew the piston stud (114). Remove
the piston packings (125), glands (124, 127), shim
(129), and washer (123).
7. Remove the enclosed wet cup (115), throat pack-
ings (109, 119) and glands (106, 108) from the out-
let housing (116). NOTE: Throat packings are
spring loaded. Be careful when removing the throat
packings or they could fall to the floor and become
dirty.
8. Inspect all parts for damage. Clean all parts and
threads with a compatible solvent before reassem-
bling. Replace any worn or damaged parts.
9. Inspect the polished surfaces of the displacement
rod (107) and cylinder (111) for scratches, scoring
or other damage, which can cause premature pack-
ing wear and leaks. To check, run a finger over the
surface or hold the part up to the light at an angle.
10. Be sure the piston stud (114) and intake valve hous-
ing (113) are not chipped or nicked.

Pump Repair
333397A 11
Reassemble the Displacement
Pump
1. See F IG . 12, page 18. Lubricate the throat packings
and install them in the outlet housing (116) one at a
time as follows, with the lips of the v-packings facing
down: the male gland (106*), two neoprene v-pack-
ings (109*), one UHMWPE v-packing (119*), and
the female gland (108*). Apply thread lubricant and
install the enclosed wet cup (115) loosely. See
Detail A, page 12.
2. If you removed the cylinder (111), be sure to replace
the o-ring (104). Lubricate the o-ring and apply
thread lubricant to the cylinder, then reinstall the cyl-
inder in the outlet housing (116).
3. Lubricate the piston packings and install them onto
the piston stud (114) one at a time in the following
order, with the lips of the v-packings facing up: the
female gland (127*), one UHMWPE v-packing
(125*), one neoprene v-packing (119*), one UHM-
WPE v-packing (125*), the male gland (124*), the
shim (129*), and the washer (123*). See Detail B,
page 12.
4. Screw the piston stud (114) onto the piston mount-
ing stud (128). Torque to 50–70 ft-lb (68–95 N•m).
Install the piston ball (102*) on the piston seat. Slide
the ball stop pin (110*) into the desired set of holes,
and secure with the cotter pin (101*).
5. Place the flats of the displacement rod (107) in a
vise. Screw the piston assembly onto the displace-
ment rod. Torque to 50–70 ft-lb (68–95 N•m).
6. Insert the displacement rod (107) into the bottom of
the cylinder (111), and be careful not to scratch the
cylinder. Push the rod straight up until it protrudes
from the enclosed wet cup (115).
7. Install the ball (102*), guide (122), o-ring (112), and
ball stop pin (105*) in the intake valve housing
(113). Place the intake valve assembly in the lock-
ing ring (117). Apply thread lubricant to the locking
ring and cylinder (111), and screw the ring onto the
cylinder.
8. Reconnect the displacement pump to the air motor
(see page 10).

Pump Repair
12 333397A
Pump Diagram
Lubricate
See Detail A
Lips of v-packings must be face down
Apply lubricant
See Detail B
Lips of v-packings must be face up
Torque to 60 ft-lb (4.1 N•m)
Detail A: Throat Packings
Detail B: Piston Packings
14
57
1
2
6
3
6
13
2
7
5
4
7
4
139
138
112
114
128
104
135
137
136
111
102
117
113
134
133
116
115
107
122
123
4
7
4
4
4
ti23797a

Air Motor Repair
333397A 13
Air Motor Repair
Disconnect the Air Motor
1. Perform the Pressure Relieve Procedure, page 5.
2. Disconnect the air and fluid hoses.
3. See F
IG . 4. Use a socket to remove the top two
mounting screws (MS).
4. Lift up on the air motor to remove it. The tie rods (3)
and the lower will remain attached.
5. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to loosen the coupling
nut (9).
6. Use a socket to remove the tie rod nuts (4). See F
IG .
11. page 17.
7. Use a wrench on the flats of the tie rods (3) to
remove them from the bottom cover of the air motor.
Reconnect the Air Motor
1. Screw the tie rods (3) into the bottom cover of the
air motor. Torque to 5-10 ft-lb (7-13.5 N•m).
2. Slide the pump onto the tie rods (3).
3. Attach the tie rod nuts (4) and torque to 15-20 ft-lb
(20-27 N•m).
4. Hold the flats of the air motor piston rod with a
wrench. Use another wrench to tighten the coupling
nut (9).
5. Tighten the mounting screws.
6. Connect the air and fluid hoses.
Repair Air Valve
Replace Complete Air Valve
1. Stop the pump at the middle of its stroke. Perform
the Pressure Relieve Procedure, page 5.
2. Disconnect the air line to the motor.
3. For motors with DataTrak: See F
IG . 5. Remove
screw (S) to disconnect the reed switch (RS) from
the air valve (AV).
4. See F
IG . 13, page 20. Remove screws (211).
Remove the air valve (214) and gasket (209).
5. To repair the air valve, see Disassemble the Air
Valve, step 1 (page 14). To install a replacement air
valve, continue with step 6.
6. Align the new air valve gasket (209) on the mani-
fold, then attach the air valve (214).
7. For motors with DataTrak: Use a screw to attach
the reed switch assembly to the new air valve. Be
sure the sensor cables are connected properly (see
pump or package manual).
8. Reconnect the air line to the motor.
F IG . 4: Disconnect Air Motor
WLD
3
MS
9
F IG . 5: Reed Switch Assembly and Air Line Removal
ti23967a
RS
AV
S

Air Motor Repair
14 333397A
Replace Seals or Rebuild Air Valve
Air Valve Seal Kits are available. See page 25 to order
the correct kit for your pump. Parts are marked †.
Air Valve Repair Kits are available. See page 25 to
order the correct kit for your pump. Parts are marked ◆.
Air Valve End Cap Kits are available. See page 25 to
order the correct kit for your pump. Parts are marked ✠.
Disassemble the Air Valve
1. Perform steps 1-5 under Replace Complete Air
Valve, page 13.
2. See F
IG . 6. Use a 2 mm or 5/64 hex key to remove
two screws (302†◆). Remove the valve plate
(313◆).
3. Remove the cup (314◆) and spring (304◆).
4. See F
IG . 14, page 22. Remove the snap ring
(303◆✠ ) from each end. Use the piston to push the
end caps (308✠) out of the ends. Remove the end
cap o-rings (301✠◆).
5. Remove the piston (306◆). Remove the u-cup seals
(309†◆) from each end and the detent assembly
(310◆) and the detent cam (307◆) from the center.
Reassemble the Air Valve
1. Lubricate the detent cam (307◆) and install into the
housing.
2. See F
IG . 7. Lubricate the u-cups (309†◆) and install
on the piston (306◆) with the lips facing toward the
center of the piston.
3. Lubricate both ends of the piston (306◆) and install
it in the housing.
4. Lubricate and install the detent assembly (310◆)
into the piston.
5. Standard models (No DataTrak or DataTrak with
cycle count only): Lubricate new o-rings (301†✠◆)
and install on the end caps (308✠). Install the end
caps into the housing.
6. Install a snap ring (303◆✠ ) on each end to hold the
end caps in place.
7. Install the spring (304◆).
8. See F
IG . 8. Lubricate and install the air valve cup
(314◆). Align the small round magnet with the air
inlet.
9. Install the valve plate (313◆). Tighten the screws
(302†◆) to hold it in place.
F
IG . 6: Air Plate Removal
302†◆
313◆
314◆
304◆
ti12751a
314c◆
314b◆
314a◆
311
F IG . 7: Air Valve U-cup Installation
F
IG . 8: Cup Installation
Lips face down
Lips face up
309†◆
309†◆
306◆
ti12754a
WLD
Magnet
314◆
302†◆
313◆

Air Motor Repair
333397A 15
Replace Pilot Valves
1. Stop the pump at the middle of its stroke. Perform
the Pressure Relieve Procedure, page 5.
2. Disconnect the air line to the motor.
3. Use a 10 mm socket wrench to remove the old pilot
valves (213) from the top and bottom covers.
4. Lubricate and install the new pilot valves (213).
Torque to 95-105 in-lb (11-12 N•m).
Repair Air Motor
Disassemble the Air Motor
1. For motors with DataTrak: Remove the screw to
disconnect the reed switch from the air valve. See
F
IG . 5, page 13.
2. See F
IG . 13, page 20. Use a 10 mm socket wrench
to remove four screws (211). Remove the air valve
(214) and gasket (209).
3. Remove the muffler.
4. Remove four screws (211) and remove the manifold
(220) and two gaskets (208).
5. Use a 10 mm socket wrench to remove the pilot
valves (213) from the top and bottom cover.
6. Remove the 13 mm tie bolts (B).
7. Remove the top cover. Remove the o-ring (202).
8. Remove the shield (206) from around the cylinder
(205). Remove the cylinder.
9. Slide the piston assembly (219) straight up off the
bottom cover.
10. Remove o-ring (204) from around the piston.
11. Remove u-cup seals (207) and o-ring (217) from the
bottom cover.
WLD
213
213
ti12747a
B

Air Motor Repair
16 333397A
Reassemble the Air Motor
NOTE: For easier reassembly, start with the top cover
(210) turned over on the workbench and assemble the
air motor upside-down.
1. See F
IG . 13, page 20. Lubricate and install the o-rig
(202) on the top cover (210).
2. Lubricate the inside of the cylinder (205). Lower the
cylinder onto the top cover (210).
3. Lubricate and install the o-ring (204) around the pis-
ton (219).
4. Slide the piston assembly (219) down into the cylin-
der (205). Be sure the o-ring (202) stays in place.
5. Install the shield (206) around the cylinder (205) and
in the groove on the top cover (210).
6. See F
IG . 9. Lubricate and install the new u-cup seal
with flange (207) in the bottom of the bearing in the
bottom cover (201). The u-cup must face up and the
flange must face down. Lubricate and install the
new u-cup seal (207) in the top of the bearing. The
lips must face up.
7. Lubricate and install the o-ring (202) on the bottom
cover (201).
8. See F
IG . 10. Carefully place the bottom cover (201)
on the cylinder (205). Slide the rod through the
bearing. The manifold surfaces of the top and bot-
tom covers must align. Be sure the shield (206) is in
the groove on both the top and bottom covers.
9. Install the tie bolts (211) and tighten by hand.
10. Install two gaskets (208) on the manifold (220).
Install the manifold (214). Torque bolts to 95-105
in-lb (10.7-11.9 N•m).
NOTE: The manifold is reversible for ease of place-
ment of the muffler or the remote exhaust.
11. Align the air valve gasket (208*◆) on the manifold,
then attach the air valve.
12. Tighten the tie bolts (211) halfway. Work in a criss-
cross pattern. Check that the shield remains in the
grooves on both covers. Tighten the bolts in pattern
to 11-13 ft-lb (15-18 N•m).
13. Lubricate and install pilot valves (213) in the top and
bottom cover. Torque to 95-105 in-lb (11-12 N•m).
14. Reinstall the muffler.
F
IG . 9: Air Motor U-cup Installation
207
207
Lips face up
U-cup faces up.
Flange faces down.
ti12755a
ti15486a
201
F
IG . 10: Align Shield in Grooves on Covers
groove
groove
210
201
206
ti14544a

Parts
333397A 17
Parts
Pump Parts Pump Parts List
See Air Motor Kits and Accessories, page 25.
F IG . 11: Pump Parts
WLD
Torque to 5-10 ft-lb (7-13.5 N•m)
1
Torque to 15-20 ft-lb (20-27 N•m)
2
Torque to 23-26 ft-lb (31-35 N•m)
3
1
2
3
3
1
3
10
9
2
4
Ref. Part Description Qty.
1 M02LN0 MOTOR, air, 2.5 in. 1
2 24V671 LOWER, displacement, sst 1
3 17B185 ROD, tie (Pack of 3) 3
4 104541 NUT, locl 3
8# 102228 COVER, oil hole 1
9 15M758 NUT, coupler, lower 1
10 184132 COLLAR, coupling 2

Parts
18 333397A
Lower Parts
F IG . 12: Lower Parts
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*
*
*
*

Parts
333397A 19
Lower Parts List
See Air Motor Kits and Accessories, page 25.
Ref. Part Description Qty.
101‡ 100063 PIN, cotter 2
102‡ 101917 BALL, bearing, .875 dia. 304 ss 2
104‡ 164782 PACKING, o-ring, 2 1/16 x 2 1/4 1
105‡ 162947 PIN, str hdls 1
106‡ 186987 GLAND, packing, 316 sst 1
107 17B183 ROD, displacement 1
108‡ 186988 GLAND, packing, 304 sst 1
109‡ 166133 PACKING, vee 2
110‡ 176637 PIN, stop, ball 1
111 186994 CYLINDER, pump 1
112‡ 164846 PACKING, o-ring, 1.75 id x 1.93 od 1
113 186992 HOUSING, valve, intake 1
114 186993 STUD, piston, 10:1 pr & 5:1 mo 1
115✓NUT, packing, sealed 1
116 17B184 HOUSING, outlet 1
117 164630 RING, locking 1
118✓111178 PACKING, o-ring 1
119‡ 170625 PACKING, vee 1
122 164679 GUIDE, ball 1
123‡ 176634 WASHER, stud, piston 1
124‡ 186990 GLAND, packing, 316 sst 1
125‡ 176638 PACKING, vee 3
127‡ 186989 GLAND, packing, 316 sst 1
128 176644 STUD, mtg, piston 1
129‡ 111790 SHIM 2
133‡ SPRING 1
134✓SEAL, u-cup 1
135✓117739 WIPER, rod 1
136# 102228 COVER, oil hole 1
137# SIGHTGLASS, plastic 1
138# PLUG, pipe, sst, 1/8 npt 5
139# FITTING, adapter, fill port 1
Ref. Part Description Qty.

Parts
20 333397A
Air Motor Parts
F IG . 13: Air Motor Parts
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2
Apply lubricant.
11-13 ft-lb (15-18 N•m )
1
2
1
2
2