Graco 03761B dimensions Pump Service, Disconnecting the Air Motor, Reconnecting the Air Motor

Pump Service

Disconnecting the Air Motor

WARNING

To reduce the risk of serious injury whenever you			115
are instructed to relieve pressure, always follow the		103
Pressure Relief Procedure on page 8.
			3
1.	Flush the pump.
2.	Relieve the pressure. Remove the pump from its
	mounting.
3.	See Fig. 6. Unscrew the tie rod locknuts (103).
4.	Unscrew and remove the screw (105) and barrel	105
	(104).
5.	Raise the air motor (115) away from the displace-
	ment pump (114). Unscrew the displacement rod
	(15) from the air motor connecting rod (S).
6.	To order pump parts, refer to the parts lists on
	pages 12–16. Refer to pages 17–34 for displace-

ment pump service and parts information. Refer to	106
manual 307456 for air motor service and parts in-
	2
formation.

Reconnecting the Air Motor

1.When reconnecting the air motor, use lithium base grease on the threads of the displacement rod

(15). Make sure the o-ring (14) is in place on the rod.

2.Insert the muffler (T) into the air motor connecting rod (S) as shown in Fig. 6.

3.Tighten the displacement rod (15) into the air mo- tor connecting rod hand tight, and install the barrel and screw set (104 and 105).

4.Apply thread sealant to the threads of the tie rods (106). To ensure proper alignment, first thread the tie rod locknuts (106) loosely onto the tie rods, then torque evenly to 15 NSm (8 ft–lb).

NOTE: Removing the muffler (T) will increase both	Fig. 6
pump flow rate and exhaust noise.

5.Reconnect the groundwire if it was disconnected during service.

S

104

T

14

15 1

114

1Grease the threads.

2Apply thread sealant. Torque evenly to

315 NSm (8 ft–lb).

03766B

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