Displacement Pump

NOTE: Packing Repair Kit 239939 is available. Refer- ence numbers of parts included in the kit are marked with an asterisk, i.e., (223*).

Removing pump (See Fig.8)

7. Loosen screws (17). Remove pump (18).

Repairing pump

See manual 308815 for displacement pump repair instructions and parts.

1Torque to

50 ft-lb (68 N￿m)

2Apply pipe sealant (110110)

12

11

14 15 222

 

 

18

 

 

48

 

 

1

17

213

36

43

47

2

50

232912,

232913,

232915,

232917

215

*214

*227

213

Installing pump (See Fig. 8 and 9)

15

201

14

202

Fig. 9

7840A

1. Lightly grease or oil transducer (67). See Fig. 15.

Guide pump over alignment pins and pressure

transducer. Tap it into position with a soft hammer.

Tighten screws (17) to 50 ft-lb (68 N￿m).

Fig. 8

9663A

1.

Relieve pressure; page 3.

2.Flush pump, if possible. Relieve pressure. Stop pump with piston rod (222) in its lowest position, if possible. To lower piston rod manually, rotate motor fan blades.

3.Remove filter (48).

4.232912, 232913, 232915, 232917. Unscrew drain hose from inlet adapter (43). Remove drain hose by unscrewing displacement pump nipple (36).

5.232910, 232911, 232914, 232916, 232918, 232665 and 232919. Remove suction tube. Re- move drain hose by unscrewing displacement pump nipple (36).

6.Use a screwdriver to push retaining spring (15) up and push out pin (14).

2. Align hole in rod (222) with connecting rod assem-

bly (12). Use screwdriver to push retaining spring

(15) up and push in pin (14). Push retaining spring

into place around connecting rod.

WARNING

MOVING PARTS HAZARD

Be sure retaining spring (18) is firmly in groove all around, to prevent pin (14) from working loose. See Fig. 9.

If pin works loose, parts (including pump connect- ing rod or bearing housing) could project into the air and cause serious injury or property damage.

3.Reconnect suction and drain hoses (47, 50). Install front cover (11).

4.Tighten packing nut (202) enough to stop leakage, but no tighter. Fill packing nut full with Graco TSL. Push plug (201) into packing nut.

309067 11

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Hitachi 309067 Displacement Pump, Removing pump See, Repairing pump, 232912 232913 232915 232917, Moving Parts Hazard