Graco 222839 Series A, 222907 Series A Reconnecting the Displacement Pump, Service, 308200

Service

Reconnecting the Displacement Pump

WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 8.

1.Orient the pump’s fluid outlet to the air motor’s air inlet as was noted in step 3 under Disconnecting the Displacement Pump. Position the displace- ment pump (107) on the tie rods (102). See Fig. 4.

NOTE: If you removed the tie rods (102) from the air motor (101) or air motor adapter plate, reinstall them using an 11 mm wrench. Torque the rods to 20-25 N.m (15-18 ft-lb) on Model 222907, and 34-41 N.m (25-30 ft-lb) on Model 222839.

2.Screw the locknuts (106) onto the tie rods (102) and torque to 34-41 N.m (25-30 ft-lb), using the wrench (113) provided (or a 17 mm box or socket wrench).

3.Place the coupling nut (104) on the displacement rod (1), then place the collars (105) in the nut. Screw the nut onto the connecting rod (103) loosely. Hold the connecting rod flats with an adjustable wrench to keep it from turning. Using an adjustable wrench, torque the nut to 41-48 N.m (30-35 ft-lb).

4.Using a torque wrench in the square hole of the supplied wrench (113), torque the packing nut (2) to 27-34 N.m (20-25 ft-lb).

5.Mount the pump and reconnect all hoses. Recon- nect the ground wire if it was disconnected during repair. Turn on the air and run the pump slowly.

6.Fill the packing nut/wet-cup 1/3 full of Graco Throat Seal Liquid or compatible solvent.

101

108

103

102 2

105

1104

1

2 3

113 7 106 4

107

1Torque to 30–35 ft–lb (41–48 NSm).

Torque to 15–18 ft–lb (20–25 NSm) on model 222907; 25–30

2ft–lb (34–41 NSm) on model 222839.

3Torque to 20–25 ft–lb (27–34 NSm).

4Torque to 25–30 ft–lb (34–41 NSm).

01059

Fig. 4

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