Displacement Pump, Removing the pump. See Fig

Displacement Pump

WARNING

INJECTION HAZARD

To reduce the risk of serious injury, whenever you are instructed to relieve pressure, follow the Pressure Relief Procedure on page 10.

Removing the pump. (See Fig. 23.)

1.Relieve pressure.

2.Flush the pump. See page 11

3.Hold the intake valve (423) with a wrench and unscrew the suction tube (30). Remove the hose

(59).Remove the spring clips (112,114) and drain hose (113).

4.Push the retaining spring (26) up. Push the pin

(25)out the rear.

5.Loosen the locknut (27). Unscrew the pump.

	26
25	59
27
	28
112	423

113

114

Model 231326 Shown

Fig. 23

03486

Repairing the pump.

See manual 307806 for displacement pump repair.

Installing the pump. (See Fig. 24.)

1.Screw the pump about 3/4 of the way into the bearing housing (21). Hold the pin (25) up to the pin hole on the connecting rod (22) and continue screwing in the pump until the pin slides easily into the hole.

2.Back off the pump until the top threads of the pump cylinder are flush with the face of the bear- ing housing and the outlet nipple faces back.

3.Push the retaining spring (26) into the groove all the way around the connecting rod. Tighten the locknut (27) to 145 "5 in-lb (197 "7 Nm) using a wrench and a light hammer.

4.Connect the pump outlet hose. Install the suction tube parts. Install the spring clips and drain hose.

1The face of the bearing housing.

2Torque the nut to 145 "5 in-lb (197 "7 Nm).

27 2

Fig. 24	0031

308398 27