Graco 312794E Disconnect the Air Motor, Reconnect the Air Motor, Torque, All Other Sizes

Disconnect the Air Motor

1.Flush the pump, if possible. (See page 13.) Relieve the pressure. (See page 11.)

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).

4.Use a socket to remove the tie rod nuts (6): 13 mm for M02xxx, 23 mm for all others.

5.Use a 13 mm socket to remove the top two mount- ing screws (MS).

6.Lift up on the air motor to remove it. The tie rods (5) and drip shield (12) will remain attached.

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.

MS

5

6

11

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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.

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Repair

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.Screw the tie rods (5) into the bottom cover of the air motor. Torque according to the following table:

Motor	Torque
M02xxx	5-10 ft-lb (7-13.5 N•m)
All Other Sizes	50-55 ft-lb (68-75 N•m)

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.

4.Attach the tie rod nuts (6) and torque according the following table:

Motor	Torque
M02xxx	15-20 ft-lb (20-27 N•m)
All Other Sizes	50-60 ft-lb (68-81 N•m)

5.Tighten the mounting screws.

6.Hand tighten the coupling nut, then torque accord- ing to the following table:

Motor	Torque
M02xxx	23-26 ft-lb (31-35 N•m)
All Other Sizes	75-80 ft-lb (102-108 N•m)

7.Connect the air and fluid hoses, the ground wire, and the tie rod shield.

312794E 17