Hitachi 312350E - Manual (Page 11)

Service
312350E 11
Disconnecting Reciprocator and Displacement Pump
See F IG . 6 and Displacement Pump Parts, page 18.
F IG . 6
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 F
IG . 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.
3
36, 37
32
43
46
(hidden
from view)
204
35
5
60
ti10602a
ti10610a
107