111
M3.0-1055-005
07 Rev. 10/09
DRIVE UNIT
Drive Unit
Drive Unit Sub-Assembly Removal
Be sure the battery is disconnected before performing
any maintenance operations.
Make sure the lifting device is sufficiently rated to lift
truck. Keep all hands, feet etc. away from unit being
raised. Never work under or around a truck that is not
properly secured.
1. Use a suitable lifting device to raise the truck and
block securely. Refer to Control of Hazardous En-
ergy Lockout/Tagout section for lifting and blocking
instructions.
2. Disconnect the battery.
3. Release the brakes. See Control of Hazardous En-
ergy.
4. Remove the drive tire and string guard (if
equipped).
5. Refer to Figure 16177-01. Remove the drain plug
(2) and allow the hydraulic gear oil to drain into a
container.
6. Remove the nine socket head cap screws (1) from
the drive unit sub-assembly.
7. Refer to Figure 15454-02. Carefully remove the
drive unit sub-assembly by placing a pry-bar be-
tween the tabs of the bearing holder (21) and the
mount plate (30) to break the seal of the gasket
eliminator. Remove the drive unit sub-assembly by
pulling it horizontally away from the truck not allow-
ing the sub-assembly to drop and damage the
meshing teeth of the gear assembly (25). Be care-
ful not to gouge or score the mounting surfaces.
Figure 16177-01
1 M12 Socket Head Cap Screw
2Drain Plug
Crown 2007 PF15706-5 Rev. 10/09
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