Hitachi 312350E Disconnecting Reciprocator and Displacement Pump, Relieve pressure, page

Service

Disconnecting Reciprocator and Displacement Pump

See FIG. 6 and Displacement Pump Parts, page 18.

60

3

36, 37

5

32
46	43		35
(hidden
from view)
ti10602a		ti10610a	204
			107

1.Flush pump if possible and stop it with displacement rod in lowest position.

2.Relieve pressure, page 7.

3.Disconnect outlet hose from displacement pump.

4.Slowly loosen hydraulic supply (60) and return (5) fittings to relieve any pressure. Then remove hoses.

5.Install plugs on tube fittings and in hose ends.

6.Check o-rings (5a and 60a) on fittings and replace them if they are worn or damaged.

See FIG. 4 and Reciprocator parts drawing, page 18.

7.Using a strap wrench on displacement cylinder (109) screw it out of motor housing (43) and slide it down as far as it will go.

8.Pull connecting rod (35) down as far as it will go. Remove pin (204).

9.Unscrew connecting rod (107) to remove pump.

FIG. 6

312350E 11