Yale MSW030-F, Руководство по обслуживанию

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630 YRM 1003 Master Drive Unit Repair
Master Drive Unit Repair
REMOVE
Separate parts of the MDU can be removed without re-
moving the complete MDU. It is not necessary to per-
form each step of the entire procedure to remove some
parts of the MDU. This procedure has steps to remove
the complete MDU. Read the entire procedure first and
do only the steps necessary to make the required re-
pairs.
WARNING
Block each side of the truck under the drive unit
frame. Position blocks on both sides of the load
wheels to prevent the truck from falling.
WARNING
Keep the MDU supported at all times using a sling
and an overhead hoist to avoid personal injury
when removing the MDU from the lift truck.
WARNING
Always disconnect the battery connector so that
the connector is completely free before performing
repairs. If the connector is not completely free, it
can reconnect the battery. Tag the connector - DO
NOT CONNECT.
1. Block lift truck. Raise drive wheel off floor. Refer to
the proper section for your lift truck:
Periodic Main-
tenance 8000 YRM 1009, Periodic Maintenance
8000 YRM 1379, or Periodic Maintenance 8000
YRM 1048 - How to Put a Lift Truck on Blocks.
2. Turn key switch to OFF position and disconnect bat-
tery.
3. Remove the upper drive unit compartment cover.
4. Use the following procedure that applies to your lift
truck:
a. Remove the lower drive unit compartment
cover.
b. Remove the two screws securing the lower
drive unit compartment cover to the frame. Re-
move the lower drive unit compartment cover.
5. Remove the four Allen-head screws from the two
piece shield over the MDU and remove the shield.
WARNING
The capacitor in the transistor controller can hold
an electrical charge after the battery is discon-
nected. Discharge the capacitor before inspecting
or repairing any component in the MDU compart-
ment to prevent personal injury and damage to the
electrical system. Always wear safety glasses.
6. Discharge capacitors. Refer to Special Precau-
tions.
7. Remove control handle. Refer to the section Steer-
ing Mechanism 1600 YRM 1004.
8. Remove drive wheel and tire assembly by removing
capscrews (23) and washers (22).
CAUTION
Be careful not to damage the wiring when discon-
necting from the motor and the brake or when re-
moving the motor and the brake from the housing.
9. Remove drive motor and brake assembly and pull
the wires out of the top of the spindle (12). See the
section
Brakes 1800 YRM 1005.
10. Support drive unit with sling ran through the center
of the spindle and a hoist or overhead crane.
11. Loosen bearing lockwasher by bending tab and
then remove lock nut.
12. Lower MDU from frame.
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