Hyster W20-30ZR, Руководство пользователя

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2000 SRM 1025 Lift Pump and Motor Repair
3. Turn key switch to OFF position and disconnect
battery.
4. Block load wheels to prevent lift truck from mov-
ing. Refer to Periodic Maintenance 8000 SRM
1027.
5. Remove drive unit compartment cover. On W25/
30/40ZC lift trucks, also remove the hydraulic
compartment cover.
6. Discharge the capacitor. See Special Precau-
tions.
For the following procedures, refer to Figure 5 for
W30/40ZA lift trucks, Figure 6 for W20/30ZR lift
trucks, and Figure 7 for W25/30/40ZC lift trucks.
7. Tag, identify, and disconnect the power wires to
the lift pump motor.
8. Tag and identify the control wiring plugs and
valve coils.
9. Remove the locking screws from the control
wiring plugs.
Disconnect the plugs from the
coils.
WARNING
Hydraulic oil hoses and lines may be under
high pressure. Hydraulic oil can be injected
into the body by pressure. To prevent possible
injury, shield yourself from any escaping oil.
Wrap a rag around the fitting and loosen the
fitting and loosen the connection slowly.
CAUTION
To prevent dirt or contaminants from entering
the hydraulic system, always install caps on
the hoses and ports of the pump.
10. Tag, identify, and disconnect the hydraulic hoses.
11. The lift pump is attached to the frame with a
bracket and vibration isolators. Remove the
two nuts and washers attaching the mounting
bracket to the isolators. See Figure 4.
12. Tilt the top of the lift pump and motor assembly
away from the frame and lift up to remove.
13. Place hydraulic pump and motor assembly on the
floor securely supported in an upright position.
The reservoir is unstable in an upright position
and must be securely supported at all times.
1. LIFT PUMP AND MOTOR ASSEMBLY
2. CAPSCREW
3. LOCKWASHER
4. PUMP MOUNTING BRACKET
5. NUT
6. WASHER
7. RUBBER ISOLATOR
8. COUNTERSUNK CAPSCREW
Figure 4. Lift Pump and Motor Assembly
7