Graco 24V672, Repair Parts

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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
WLD
3
MS
9
F
IG
. 5: Reed Switch Assembly and Air Line Removal
ti23967a
RS
AV
S