Komatsu 830E-AC Shop Manual page 649

4. Attach front support bracket to the "T" bracket
and to the pump with cap screws, lockwashers
and nuts. Tighten cap screws to standard
torque.
5. Connect hoist pump drive flange to drive shaft
with cap screws, lockwashers and nuts. Tighten
to standard torque.
6. Tighten support bracket cap screw (on rear of
steering pump) to standard torque.
7. Uncap inlet and outlet hoses and install to
pumps using new O-rings. Tighten cap screws
securely.
1. Hoist Pump
2. Nut & Washer
3. Dowel
4. O-Ring
5. Cap Screw
6. Bearing Plate
L03039
NOTE: If trapped air is not bled from steering pump,
possible pump damage and no output may result.
FIGURE 3-2. STEERING PUMP REMOVAL
7. O-Ring
8. Transition Plate
9. Coupling
10. Cap Screw
11. Steering & Brake Pump
12. Pump Case Drain
Hydraulic Component Repair
8. Service the hydraulic tank with C-4 type hydrau-
lic fluid. Refer to Hydraulic Tank, this section for
filling instructions.
9. Open the three suction line shut-off valves.
Loosen cap screws (at the pump) on suction
hoses (12 & 16) to bleed trapped air. Then
loosen cap screws (at the pump) on pressure
hoses to bleed any trapped air. Tighten all cap
screws securely.
10. Reconnect blower tube and install blower tube
support strap.
13. Inlet Port
14. Compensator Adjuster
15. Plug
16. O-Ring
17. Nut
18. Unloader Adjuster
L3-5