Graco Quiet King 03695A Operation manual

307741
Rev. R
First choice when
quality counts.t
03695A
Model 220106 Shown
INSTRUCTIONS-PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
255 mm (10 in.) DIAMETER
Quiet KingRAir Motor
0.6 MPa, 6.2 bar (90 psi) Maximum Working Pressure
Part No. 220106, Series A
Standard Quiet Air Motor
Part No. 235525, Series B
Quiet Air Motor
Part No. 237000, Series A
Reduced Icing Quiet Air Motor
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1985, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

2 307741
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 28. . . . . . . . . . . . . . . . . . . . . . . . . .
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
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are uncertain about usage, call your Graco
distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure stated on the equipment or in the Technical Data
for your equipment. Do not exceed the maximum working pressure of the lowest rated component
in your system.
DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DDo not use hoses to pull equipment.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
DWear hearing protection when operating this equipment.
DDo not lift pressurized equipment.
DDo not lift the equipment by the air motor lift ring if the total weight of the equipment exceeds 550 lb
(250 kg).
DComply with all applicable local, state, and national fire, electrical, and safety regulations.

3307741
WARNING
INJECTION HAZARD
Spray from the gun/valve, hose 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.
DFluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medi-
cal attention.
DDo not point the gun/valve at anyone or at any part of the body.
DDo not put your hand or fingers over the spray tip/nozzle.
DDo not stop or deflect leaks with your hand, body, glove or rag.
DDo not “blow back”fluid; this is not an air spray system.
DAlways have the tip guard and the trigger guard on the gun when spraying.
DCheck the spray gun diffuser operation weekly. Refer to the gun manual.
DBe sure the gun/valve trigger safety operates before spraying/dispensing.
DLock the gun/valve trigger safety when you stop spraying/dispensing.
DFollow the Pressure Relief Procedure on page 7 whenever you: are instructed to relieve pres-
sure; stop spraying/dispensing; clean, check, or service the equipment; and install or clean the
spray tip/nozzle.
DTighten all fluid connections before operating the equipment.
DCheck the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
DUse only Graco approved hoses. Do not remove any spring guard that is used to help protect the
hose 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.
DKeep clear of all moving parts when starting or operating the pump.
DBefore servicing the equipment, follow the Pressure Relief Procedure on page 7 to prevent the
equipment from starting unexpectedly.

4 307741
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.
DGround the equipment and the object being sprayed. Refer to Grounding on page 5.
DIf there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing/dispensing immediately. Do not use the equipment until you identify and correct the problem.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed/dispensed.
DKeep the spray/dispense area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the spray/dispense area.
DExtinguish all open flames or pilot lights in the spray/dispense area.
DDo not smoke in the spray/dispense area.
DDo not turn on or off any light switch in the spray/dispense area while operating or if fumes are
present.
DDo not operate a gasoline engine in the spray/dispense area.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.

5307741
Installation
General Information
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 Acces-
sories, available from your Graco distributor.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 4.
1. Pump: Use a ground wire and clamp as shown in
Fig. 1. Loosen the grounding lug locknut (W) and
washer (X). Insert one end of a 12 ga (1.5 mm@)
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
number 237569 Grounding Clamp and Wire.
2. Air and fluid hoses: Use only electrically conduc-
tive hoses.
3. Air compressor: Follow manufacturer’s recommen-
dations.
4. Spray gun or dispensing valve: Ground through
connection to a properly grounded fluid hose and
pump.
5. Object being sprayed: Follow your local code.
6. Fluid supply container: 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 continu-
ity.
8. To maintain grounding continuity when flushing or
relieving pressure, hold a metal part of the spray
gun/dispense valve firmly to the side of a grounded
metal pail, then trigger the gun/valve.
Fig. 1
W
X
Y
Z

6 307741
Installation
Noise Reduction
Instruction Manual 307375 is supplied with this motor.
It provides information on noise reduction.
The following are additional recommendations for
Maximum Noise Reduction:
DThe air line should be connected to the air motor
inlet with an electrically conductive flexible hose.
Also, use flexible fluid outlet and suction hoses.
Where possible, avoid using solid plumbing, which
carries noise vibrations.
DMount the air motor on resilient rubber pads, rather
than sheet metal.
DDetermine minimum air inlet pressure and pump
cycle rate to achieve desired spray/dispensing
results or minimum fluid pressure and flow. This will
result in less system wear and less overall noise.
Air Motor Icing
Moisture in the compressed air can collect in the air
motor and freeze, causing the motor to stall. This is
called icing. If icing occurs, shut off the air supply and
allow the ice to thaw.
To minimize icing, reduce the moisture in your com-
pressed air supply by using an air dryer or a filter
which traps water.
Slope the main air line slightly downward so water will
collect at the end of the line, where it can be drained.
Additionally, plumb each drop line from the top of the
main air line. Install an automatic drain or a drain valve
at the bottom of each drop.
Model 237000 Reduced Icing Air Motor allows you to
divert a stream of air over the air valves. This flow of
warm air prevents water from collecting and freezing.
The amount of air is adjustable with a needle valve
(88, see the parts drawing on page 22).
For additional help in designing your system, contact
your Graco distributor.

7307741
Troubleshooting
Pressure Relief Procedure
WARNING
INJECTION HAZARD
To reduce the risk of serious injury, in-
cluding fluid injection, splashing in the
eyes or on the skin, or moving parts,
always follow the Pressure Relief Procedure
whenever you
Dare instructed to relieve the pressure
Dshut off the pump
Dstop spraying/dispensing
Dcheck or service any of the system equipment
Dinstall or clean the spray tips/nozzles
1. Lock the gun/valve trigger safety.
2. Turn off the air to the motor.
3. Close the bleed-type master air valve (required in
your system).
4. Unlock the gun/valve trigger safety. Hold a metal
part of the gun/valve firmly to a grounded metal
pail. Trigger the gun/valve to relieve pressure.
5. Lock the gun/valve trigger safety.
6. Open the fluid drain valve. Leave the fluid drain
valve open until you are ready to spray/dispense
again.
If you suspect that the spray tip/nozzle or hose is
completely clogged, or that pressure has not been fully
relieved after following the steps above, very slowly
loosen the tip guard retaining nut or hose end coupling
to relieve pressure gradually, then loosen completely.
Now clear the tip/nozzle or hose obstruction.
Stalled Motor
To restart a stalled motor, close the bleed-type master
air valve to bleed off all trapped air pressure. Turn the
air back on. This will trip the air valve of the air motor,
causing the piston to go to the top or bottom of its
stroke.
WARNING
MOVING PARTS HAZARD
The piston in the air motor moves when
air is supplied to the motor. Moving parts
can pinch or amputate your fingers or
other body parts. Relieve the pressure before
servicing the motor.
If Motor Will Not Operate
Check the following areas for damage or wear and
replace parts as needed.
Air valving mechanism: director valve (3), spring (4),
air valve housing (5), valve plate (2), valve plate seal
(1).
Trip rod: check for broken spring or bent rod (40). Do
not attempt to repair the trip rod.
Damaged toggle mechanism: guide (16), spring (17),
housing (18), pin (19).

8 307741
Troubleshooting
Air Leaks
Air leaks are caused by worn or damaged gaskets or
seals. To locate the leaks, first shut off the air supply to
the pump and open the bleed-type master air valve to
relieve air pressure. Disconnect the main air supply
line from the air inlet. Remove the shield (27) as
explained on page 10, then reinstall the other parts
and connect the main air line to the inlet.
Open the bleed-type master air valve and adjust the air
pressure to .07–0.1 MPa, 0.7–1.0 bar (10–15 psi). Stall
the pump on both the up and down stroke as indicated
in the Check Chart below. Use the methods listed in
the Check Chart to find where air is leaking. See Fig.
2.
WARNING
MOVING PARTS HAZARD
Keep you fingers away from all moving
parts while performing this test, to
reduce the risk of pinching or amputating
your fingers. Reinstall the air motor shield before
resuming normal operation of the pump.
Check for air leaks by feeling, listening, or squirting oil
around the suspected area. The oil will bubble if there
is a leak.
CHECK CHART
Stroke Position Letter Ref. Points Check Method Cause of Leakage
UP stroke only FBy listening for air leak at
exhaust outlets Worn trip rod packing (65).
BBy feel Blown air cylinder gasket
(35).
CSquirt oil around wiper (44) Worn throat packing (46).
GBy feel Damaged cylinder gasket
(38).
DOWN stroke only DBy feel. Damaged air manifold gas-
ket (30).
BOTH strokes EBy feeling exhaust, or
hearing a high-pitched
sound
Worn director valve (3).
Replace, or lap faces with
no. 500 grit sandpaper.
FBy feel, or hearing a high-
pitched sound Worn piston o-ring (33).
D or G By feel Blown manifold gaskets
(38 and 30).
HSquirt oil around o-ring
(15) Damaged housing o-ring (15).
KBy feel Damaged o-ring (26).

9307741
Troubleshooting
03705A
Fig. 2
D(30*)
E(3)
G (38*)
F (33*)
C (44*)
*45, *46
B(*35)
*65
H(15)
K(26)
29
Model 220106 Shown
1
2
Pack cavity with light
waterproof grease.
Grease packing (46*).
3Lips of packing (46*)
must face up.
123

10 307741
Service
WARNING
To avoid serious injury and equipment
damage, do not lift the equipment by the
air motor lift ring if the total weight of the
equipment exceeds 550 lb (250 kg). The
lift ring cannot support that weight.
Tools Required
DPadded pliers, Part No. 207579 (for use on trip
rod).
DTorque wrench
D1 in. deep well socket wrench
DSet of socket or box wrenches
DAdjustable wrench
DO-ring pick
DLight waterproof grease
DLoctiter242 or equivalent
Disassembly
NOTE: Repair Kit 220153 is available. Parts included
are marked with an asterisk, for example (30*). For the
best results, use all the new parts in the kit.
NOTE: Inspect all parts as they are disassembled and
replace worn or damaged parts.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.
1. Relieve the pressure.
2. Disconnect the air hose from the air inlet swivel
(68). Disconnect the displacement pump from the
motor.
NOTE: Refer to Fig. 3 for steps 3 to 5.
3. To remove the shield, perform step a or b, as
applicable.
a. For Models 220106 and 235525: Remove the
lift ring (25), o-ring (26), screws (24), lock-
washers (23), air inlet assembly, and shield
(27). See Fig. 3.
b. For Model 237000: See page 22. Remove the
lift ring (25), o-ring (26), screws (24), lock-
washers (23), air inlet fitting (68), and mufflers
(76). Remove the air tube (83) from the fitting
(87) and push it down through the grommet
(81). Remove the shield (27).
4. Remove the gasket (53). Lift off the manifold cap
(29). Remove the gasket (30).
5. Unscrew the toggle retainers (14), and remove the
o-rings (15), housing guides (16), springs (17),
housings (18), and pins (19) from each side of the
manifold (20).
07281A
Fig. 3
1918
16
15
14
20
17
30
29
53
25 67 32 68
24
26
23
21
27
Model 220106 Shown

11307741
Service
NOTE: Refer to Fig. 4 for steps 6 to 11.
6. Remove the screws (31) and lockwashers (13)
from the manifold (20).
7. To prevent the spring-loaded director valves
(3) from popping out, carefully lift the manifold
(20) up about 51 mm (2 in.) from the cylinder (36).
Place one hand under the manifold to hold the
director valves in the valve housing (5), then
continue lifting the manifold. Remove your hand
slowly, allowing the valve springs to release gently.
Inspect the director valves (3) and compression
springs (4).
8. Turn the manifold (20) over. Place wrenches on
the flats of the adjusting screw (11) and nut (12)
and turn the screw further into the nut until you can
remove it. Do this in all four positions.
WARNING
The openings in the valve plates (2) are very sharp.
Be careful not to cut yourself.
9. Remove and check the valve plates (2), handling
them carefully. Clean the plates and mating sur-
faces of the manifold (20). Remove the rubber pad
(8).
NOTE: If you replace the valve plates, also replace the
seals (1).
CAUTION
Be careful not to damage the surface of the trip rod
(40), which would restrict its free movement. Special
padded pliers, 207579, are available.
10. Pull the trip rod (40) up and grasp it with the
padded locking pliers (order 207579). Hold the
flats of the valve housing hub (10) with a wrench,
screw off the trip rod nut (7) and remove the air
valve housing (5). Remove the lockwasher (6) and
screw off the hub (10). Now release the pliers.
11. Remove the gasket (38) from the air cylinder (36).
07282A
Fig. 4
20
11
12
8
21
Detail of Air Manifold and Valve Plates
31
13
36
3
4
10
7
65
38
40
4
3
20
12

12 307741
Service
NOTE: Refer to Fig. 5 for steps 12 to 18.
12. Remove the rubber pad (8) from the cylinder (36).
Remove the trip rod bearing (37), using a 1 in.
deep-well socket wrench. Remove the gasket (66),
v-block packing (65), and backup washer (64) from
the bearing.
CAUTION
Be careful not to tilt the cylinder when removing it
from the piston to avoid damaging the smooth inner
surface of the cylinder.
13. Remove the screws (31) and lockwashers (13) and
carefully pull the cylinder straight up off the piston
(34).
14. Pull the piston (34) and trip rod (40) up out of the
base (47). Remove the o-ring (33) from the piston.
NOTE: The connecting rod stud (39) is fastened to the
piston shaft (34) with anaerobic sealant, and may be
difficult to remove.
CAUTION
Be careful not to damage the polished surface of the
piston shaft.
15. Lock the hex of the piston shaft (34) in a vise and
unscrew the connecting rod stud (39) from the
piston shaft.
CAUTION
Handle the trip rod assembly (40) carefully. Nicks
and scratches cause premature spring failure.
NOTE: A damaged trip rod cannot be repaired; use a
new one.
16. Remove the trip rod (40) from the piston (34).
17. Remove the v-block packing (46), backup washer
(45), o-ring (41), and gasket (35) from the base
(47).
18. Turn the base over and remove the wiper seal
(44). Inspect the bearing (70) in place. Remove
only if damaged.

13307741
Service
03701
07283A
Fig. 5
34
33
40
39
46
45
44
70
35
47
8
37
66
64
65
36
13
31
34
47
40
07421A
41

14 307741
Service
Reassembly
1. Clean all parts thoroughly and inspect for wear or
damage. Replace parts as necessary.
NOTE: Refer to Fig. 6 for steps 2 to 5.
2. Turn the base (47) upside down. If the bearing (70)
was removed, press-fit the new bearing so its top
edge is flush with the shoulder (S) of the packing
cavity. After installation, measure the inner diame-
ter of the bearing. It must be uniformly 35 mm
(1.375 in.) to ensure that the piston shaft does not
bind. If incorrect, size the bearing while in place;
this can be done with a 35 mm (1.375 in.) diameter
steel ball.
3. Grease the wiper seal (44*) and press-fit in the
base (47).
4. Turn the base upright. Install the backup washer
(45*) in the base (47). Grease the v-block packing
(46*) and install it in the base so the lips face up.
5. Place the o-ring (41) onto the air motor base (47).
Place the gasket (35*) on the base so one of its
notches (K) aligns with the optional fluid outlet (L).
07421A
Fig. 6
1
3
4
2
46*
45*
44*
70
35*
Innerdiameter of the bearing must be uniformly 35 mm (1.375 in.).
Grease.
Lips of packing must face up.
Align notch (K) in gasket (35) with the optional fluid outlet (L) in the base (47).
47
L
K
4
4
3
1
2
S
41
2

15307741
Service
NOTE: Refer to Fig. 7 for steps 6 to 10.
6. Grease the trip rod (40) with light, water-proof
grease and slide it into the piston (34) shaft. Clean
the threads of the piston and the connecting rod
stud (39). Apply LoctiteR242 or the equivalent to
both. Screw the stud into the piston and torque it
to 200–220 NSm (148–162 ft-lb).
7. Place the cylinder (36) upside down on the base
(47). Grease the piston (34), o-ring (33*), and
inside of the cylinder. Place the o-ring around the
piston; the o-ring is larger than the piston groove.
Install the piston in the cylinder so the excess of
the o-ring fits into one of the air channels (M) of
the cylinder. Use your fingers to push the o-ring
out of the channel and seat it in the piston groove.
Very carefully lower the piston into the cylinder.
8. Regrease the inside of the cylinder (36). Carefully
turn the piston assembly and cylinder over and
guide it into the base (47). Align one of the cylin-
der’s air channels (M) with the notch (K) in the
gasket (35) and with the optional fluid outlet (L) of
the base. Install the lockwashers (13) and screws
(31) and torque to 34 NSm (25 ft-lb).
9. Install the backup washer (64*) and v-block pack-
ing (65*) in the bearing (37) so the lips of the
packing face out of the bearing. Install the gasket
(66) on the bearing. Grease the trip rod (40) and
thread the bearing onto the trip rod and into the
cylinder (36). Use a 1 in. deep-well socket wrench
to tighten the bearing.
10. Install the rubber pad (8) in the cylinder (36).
Fig. 7
1
3
4
2
Grease with light, waterproof grease.
Align air channel (M) and notch (K) in gasket (35)
with the optional fluid outlet (L) in the base (47).
Apply Loctiter242 or equivalent to threads.
Torque to 200–220 NSm (148–162 ft-lb).
Grease inside wall of cylinder.
5
6
7
Torque to 34 NSm (25 ft–lb).
Lips must face down, out of bearing (37).
07283A
8
37
66
64*
65*
36
13
31
34
47
40
03701
40
39
34
33*
M
K
L
1
2
2
3
1
1
4
5
6
7
7
7

16 307741
Service
NOTE: Refer to Fig. 8 for steps 11 to 16.
11. Place the gasket (38*) on top of the cylinder (36).
12. Thread the hub (10) onto the trip rod (40). Lift the
rod and grasp it with the padded locking pliers.
Screw the hub down as far as possible by hand.
13. Install the air valve housing (5), lockwasher (6),
and trip rod nut (7) so the nut is flush with the top
of the trip rod (40). Tighten the nut 2 turns more,
so there is 1 mm (0.04 in.) clearance between the
top of the rod and the top of the nut. Hold the flats
of the trip rod nut with a wrench. With another
wrench, tighten the hub (10) to 28–34 NSm (21–25
ft-lb). Release the pliers.
14. Place the plate seals (1) on the valve plates (2).
Place the plates in the air manifold (20). Install the
adjusting screw (11) and nut (12) assemblies in all
four corners of the plates. Important: Adjust the
screws and nuts evenly so they snugly hold the
plates. Do not exceed 4 NSm (35 in-lb).
15. Install the rubber pad (8) in the air manifold (20).
NOTE: On Model 235525, check that the plugs (9) are
in place in the air manifold exhaust ports (E).
On Model 237000, check that the tubing (82) is se-
curely attached to the air manifold (20). See page 22.
16. Place the springs (4) and air director valves (3)
into the valve housing (5). Hold the springs and
valves in place and install the air manifold (20)
over the housing, making sure it is properly ori-
ented. The exhaust ports (E) must be oriented to
the optional outlet (L) of the base as shown. Be
sure the valve housing (5) moves up and down
freely, and then install and tighten the screws (31)
and lockwashers (13) holding the manifold (20) to
the cylinder (36).
02963
Fig. 8
Torqueto 28–34 NSm (21–25 ft-lb)
2
3
Make top of nut flush with top of trip
rod, then tighten 2 turns more.
Top of nut (7) must be 1 mm (0.04”)
from end of rod (40).
1
C
40
7
5
1
Detail of Valve Housing
31
13
36
3
4
10
7
65
38*
40
4
3
07282A
Torqueto 34 NSm (25 ft-lb).
Tighten snugly. Do not exceed 4 NSm (35 in-lb).
20
11
12
8
21
Detail of Air Manifold and Valve Plates
12
4
20
L
2
3
4
E

17307741
Service
NOTE: Refer to Fig. 9 for steps 17 to 22.
17. Lubricate the housing (18), spring (17), and guide
(16) with light, water-proof grease. Assemble the
housing and spring into the guide. Lubricate the
pin (19) and slide it into the housing. Slide these
assembled parts into the air manifold (20). Be sure
the pin (19) is aligned with the slot (C, Fig. 8) of
the air valve housing (5) before assembling the
rest of the air valve. Repeat for the other side.
18. Install the o-ring (15) on the retainer (14). Screw
the retainers into both sides of the manifold (20);
they should readily screw all the way into the
manifold by hand. If they do not, the parts are not
assembled correctly; inspect, and correct any
misalignment. Now firmly tighten the retainers
(14).
19. Place the gasket (30*), cap (29), and gasket (53)
on the air manifold (20). Check the parts list for
your model for the correct gasket (30*) to use. Be
sure these parts are oriented as shown in the parts
drawing for your model.
WARNING
MOVING PARTS HAZARD
Do not operate without the air motor
shield in place. Pinching or amputation
of fingers or hands may occur. See
MOVING PARTS HAZARD on page 3.
20. To install the shield (27), perform step a or b, as
applicable.
a. For Models 220106 and 235525: Install the
o-ring (26), lift ring (25), screws (24), lock-
washers (23), air inlet assembly, and shield
(27). Torque the screws to 12–16 NSm (9–12
ft-lb).
b. For Model 237000: See page 22. Thread the
tube (83) through the grommet (81) in the
shield (27) as much as possible. Install the
shield. Install the o-ring (26), lift ring (25),
screws (24), lockwashers (23), air inlet fitting
(68), and mufflers (76). Torque the screws to
12–16 NSm (9–12 ft-lb). Connect the tube (83)
to the fitting (87).
21. Test the motor at 0.1–0.2 MPa, 1–2 bar (15–30
psi) before reconnecting to the pump, to be sure it
operates properly.
22. Reconnect the motor to the displacement pump,
remount the pump and connect the air and fluid
lines. Reconnect the ground wire before operating
the pump.
Fig. 9
07281A
1918
16
15
4
20
17
*30
29
53
25 67 32
68
24
26
23
21
27
1
2
Grease with light, waterproof grease.
Torque to 12–16 NSm (9–12 ft-lb).
Model 220106 Shown
1
1
1
1
2

18 307741
Parts
Model 220106, Series A
Standard Quiet Air Motor
03696A
25 67 32
68
69
63
62
24
26
23
21
27
28
53
29
*30
8
20 31
13
19
18
17
16
15
14
12 11 10
7654321
*38
8
37
66
*65
*64
43
44*
31
13
41
47
45*
46*
39
40
34
33*
35*
36
70
71Y
72Y

19307741
Parts
Model 220106, Series A
Standard Quiet Air Motor
Ref
No. Part No. Description Qty Ref No. Part No. Description Qty
1 168184 SEAL, plate 2
2 176536 PLATE, valve 2
3n176518 VALVE, director 2
4 176543 SPRING, compression 2
5n176519 HOUSING, air valve 1
6 105319 LOCKWASHER; 10 mm 1
7 176569 NUT, trip rod 1
8n176549 PAD, rubber 2
10 176568 HUB, valve housing 1
11 176550 SCREW, adjusting 4
12 176548 NUT, adjusting 4
13 100018 LOCKWASHER 4
14 178428 RETAINER, toggle 2
15n105318 O-RING; nitrile rubber 2
16n178427 GUIDE, housing 2
17n178429 SPRING, compression 2
18n178426 HOUSING, spring 2
19n105321 PIN, dowel 2
20 181322 MANIFOLD, air 1
21 100549 ELBOW, pipe, 90_street;
3/4 npt (m x f) 1
23 104572 LOCKWASHER; 8 mm 8
24 105322 CAPSCREW, hex hd;
M8 x 1.5 x 100 8
25 176537 RING, lift 1
26n166221 O-RING; nitrile rubber 1
27 181276 SHIELD 1
28 181308 INSULATION 2
29 181321 CAP, manifold 1
30* 181323 GASKET; cellulose fibre 1
31 105324 CAPSCREW, hex hd;
M12 x 1.75 x 30 16
32 166466 TEE, pipe; 3/4 npt(f) 1
33* 102727 O-RING; nitrile rubber 1
34 220105 PISTON ASSEMBLY 1
35* 168189 GASKET; buna-N/cellulose 1
36 181297 CYLINDER 1
37n215933 BEARING, trip rod 1
38* 176575 GASKET; cellulose fibre 1
39 176564 STUD, connecting rod 1
40n218597 TRIP ROD ASSY 1
41n102737 O-RING; buna-N 1
43 102725 PLUG, pipe 1
44* 161569 SEAL, wiper 1
45* 161563 WASHER, backup 1
46* 161562 V-PACKING; nitrile rubber 1
47 235844 AIR MOTOR BASE ASSY
includes item 70 1
53n177081 GASKET; neoprene 1
62 104582 WASHER, tab 1
63 104029 CLAMP, grounding 1
64* 161559 WASHER, backup 1
65* 161560 V-PACKING; polyurethane 1
66n150647 GASKET; copper 1
67 108307 ELBOW, pipe, 90_; 3/4 npt(mbe) 1
68 157785 UNION, swivel; 3/4 nps(f) swivel x
3/4 npt(m) 2
69 214953 HOSE, air; buna-N; 3/4”ID; cpld
3/4 npt(mbe); 1.25’(381 mm) 1
70 189059 BEARING 1
71Y290331 LABEL, warning; English 1
72Y189991 LABEL, warning 1
* These parts are included in Repair Kit 220153,
which may be purchased separately.
nKeep these spare parts on hand to reduce down
time.
YReplacement Danger and Warning labels, tags and
cards are available at no cost. The 290331 label is
also available in the following languages:
German (Part No. 290396)
French (Part No. 290397)
Spanish (Part No. 290398).

20 307741
Parts
Model 235525, Series B
Quiet Air Motor
03698A
25 68
63
62
24
26
23
27 28
53
29
*30
8
20 31
1319
18
17
16
15
14
12 11 10
7654321
*38
8
37
66
*65
*64
43
44*
31
13
41
47
45*
46*
39
40
34
33*
35*
36
9
70
71Y
72Y