Repair
Remove Motor
1.Stop the pumps near the bottom of their stroke. Fol- low Shutdown, page 30.
2.Disconnect the air line from the air motor (103).
3.Remove the air motor rod cover (121) and pump guards (122).
8.Refer to the air motor manual to service or repair the air motor.
9.Follow the steps in reverse order to reinstall the air motor.
NOTE: Position air motor for correct mix ratio. See Motor Position on page 20 for instructions. Torque nuts (108) to
Air Motor shown | 103 |
|
| Air Controls | |
|
| |
121 |
| See FIG. 10 on page 37. |
122
r_258914_3a0420a_7a
4.Use a wrench to hold the tie rod (102) flats to keep the rods from turning. Unscrew the nuts (108) and washers (107) from the tie rods.
Replace Air Control Assembly
1.Close the main air shutoff valve on the air supply line and on the system. Depressurize the air line.
2.Disconnect the air motor air lines and system air line.
3.Remove the nut (8) and washer (5). Remove the bottom air control manifold assembly from the cart.
Air Motor shown
lift ring
102
104
111
107 | 2589143a0420a 8a |
| |
108 |
|
109 | r_ |
|
4.Loosen the upper air control assembly from the air motor.
5.Follow the steps in reverse order to reinstall the new air control assembly.
Replace Air Filter Element
1.Close the main air shutoff valve on the air supply line and on the system. Depressurize the air line.
2.Unscrew the serrated ring on filter bowl (210).
3.Remove and replace the filter element (210a). See
Air Controls, 258983, page 52.
Replace System Air Regulator
1.Close the main air shutoff valve on the air supply line and on the system.
2.Disconnect air motor air lines and system air line.
5.Place a wrench on adapter rod (104). Use tool (70) to loosen the serrated yoke nut (109) that holds the air motor (103) above the yoke (111).
6.Face the front of the machine and slide the air motor (103) to the opening in the yoke (111).
3.Remove the regulator assembly (201) and replace with new regulator. See Air Controls, 258983, page 52.
4.Follow the steps in reverse order to reassemble.
7. Use a hoist to remove the air motor by the lift ring.
36 | 3A0420T |
