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6. Examine the head of the hex screw and the locking tab
washer. Make sure one (1) of the tabs on the locking
tab washer is parallel with one (1) of the flats on the
head of the hex screw.
7. If one (1) of the tabs on the locking tab washer is NOT
parallel with one (1) of the flats on the head of the hex
screw (FIGURE 1), TIGHTEN the hex screw until the
closest flat and locking tab are parallel.
NOTE: Tighten hex screw only. DO NOT loosen hex screw
to make one of the tabs on the locking washer parallel.
8. Bend the parallel tab of locking tab washer up tight
against flat of the hex screw (FIGURE 1).
14-inch Drive Wheel (FIGURE 2)
REMOVING.
1. Remove the battery boxes. Refer to INSTALLING/
REMOVING BATTERY BOXES in PROCEDURE
11 of this manual.
2. Remove the four (4) beveled locknuts that secure
the drive wheel to the wheel hub.
3. Remove the existing drive wheel from the wheel hub.
INSTALLING.
1. Install drive wheel onto wheel hub
2. Secure the drive wheel onto the drive wheel hub with
the existing four (4) beveled locknuts. Torque lock-
nuts to 160-inch pounds.
3. Repeat STEPS 1-2 for opposite side if necessary.
4. Install the battery boxes. Refer to INSTALLING/RE-
MOVING BATTERY BOXES in PROCEDURE 11
of this manual.
Four (4) Beveled Hex Nuts
Drive Wheel Assembly
Wheel Hub
Assembly
FIGURE 2 - REMOVING/INSTALLING
14-INCH DRIVE WHEELS
REMOVING/INSTALLING DRIVE
WHEEL HUB (FIGURE 3)
NOTE: Drive wheel hubs are only on 14-inch drive wheels.
WARNING
NEVER use a locking tab washer more
than once. ALWAYS use a NEW locking tab
washer when installing the drive wheels.
Removing
1. Remove the drive wheels. Refer to REMOVING/IN-
STALLING THE DRIVE WHEELS in this procedure
of the manual.
NOTE: The tab of the locking washer that is bent 90
o
up
against the head of the mounting screw MUST be flat-
tened before the mounting screw can be removed.
2. Flatten the tab of the locking washer that is bent 90
o
up against the head of the mounting screw.
3. Remove the mounting screw, locking tab washer and
washer that secure the existing drive wheel to the wheel
hub.
4. Remove the wheel hub and keystock from drive shaft.
Installing
1. Position the keystock on the drive shaft
CAUTION
DO NOT apply more than a one (1)-inch (in
length) thin film of anti-seize compound to
the drive shaft. Applying more than one
(1)-inch (in length) can cause the anti-seize
compound to leak resulting in damage to
flooring (carpet, tile, etc.).
2. Apply a thin film of anti-seize compound one (1) inch in
length to the end of the drive shaft.
3. Reinstall drive wheel hub onto the gearbox drive shaft.
NOTE: While installing the drive wheel hub onto the drive
shaft, spin the drive wheel hub to evenly distribute the anti-
seize compound over the entire drive shaft.
4. Install the washer and NEW locking tab washer onto
the wheel hub. Make sure the locking tab is in line with
the keyway of the wheel hub.
5. Apply Loctite 242 to the mounting screw.
6. Install the mounting screw. Use a torque wrench only
and torque to 90-inch pounds.
PROCEDURE 9
WHEELS
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