SkyTrak 8042 Service Manual - Manual (Page 109)

5-5 6036, 6042, 8042, 10042, 10054
Axles, Drive Shafts, Wheels and Tires
5.4.4 Axle Maintenance
CLEANING: Clean parts with machined or ground
surfaces (such as gears, bearings and shafts) with
emulsion cleaners or petroleum-based cleaners. DO
NOT steam clean internal components and the interior of
the planetary hub and axle housing. Water can cause
corrosion of critical parts. Rust contamination in the
lubricant can cause gear and bearing failure. Remove old
gasket material from all surfaces.
DRYING: Use clean, lintless towels to dry components
after cleaning. DO NOT dry bearings by spinning them
with compressed air; this can damage mating surfaces
due to lack of lubrication. After drying, lightly coat
components with oil or a rust-preventive chemical to help
protect them from corrosion. If storing components for a
prolonged period, wrap them in wax paper.
PERIODIC OPERATION REQUIREMENT: Every two
weeks, drive the machine far enough to cause the drive-
train components to make several complete revolutions.
This will help ensure that internal components receive
lubrication to minimize deterioration caused by
environmental factors such as high humidity.
SUBMERSION: If the machine has been exposed to
water deep enough to cover the hubs, disassemble the
wheel ends and inspect for water damage and
contamination. If the carrier housing was submerged in
water, especially if the water level was above the vent
tube (breather), drain the axle and inspect internal parts
for water damage and contamination. Before assembling
and refilling the unit with the specified lubricant(s), clean,
examine and replace damaged parts as necessary.
Note: Use a suitable puller for bearing removal. Clean,
inspect and lubricate all bearings just prior to
reassembly. If replacement of a damaged bearing cup or
cone is necessary, replace the cup and cone as a set.
5.4.5 Axle Replacement (6036 & 6042)
a. Axle Removal
The front and rear axle assemblies differ in that the front
axle assembly is equipped with a parking brake
mechanism and a limited-slip feature; the rear axle has
neither. The following steps outline a typical axle removal
procedure, suitable for either the front or the rear axle
assembly.
Cleanliness is extremely important. Before attempting to
remove the axle, thoroughly clean the machine. Avoid
spraying water or cleaning solution on the stabilizer
solenoids and other electrical components. If using a
steam cleaner, seal all openings before steam cleaning.
Note: Clear the work area of all debris, unnecessary
personnel, etc. Allow sufficient space to raise the
machine and to remove the axle.
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the travel select lever in the (N) NEUTRAL
position, engage the parking brake, straighten all
wheels and shut the engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel, stating that the machine
should not be operated.
3. Open the rear door. Allow the system fluids to cool.
4. Properly disconnect the battery.
5. If the axle will be disassembled after removal, place
a suitable receptacle under the axle drain plug (1).
Remove the drain plug and allow the axle oil to drain
into the receptacle. Transfer the used axle oil into a
suitable covered container, and label the container
as “Used Oil.” Dispose of used oil at an approved
recycling facility.
6. Front Axle: Remove the front access panel (2) to
gain access to the front axle hose connections and
mounting bolts.
Rear Axle: Open the right and left side engine
compartment doors to gain access to the rear hose
connections and mounting bolts.
OA1321
1
MA9091
2