6 Scheduled Maintenance
64
Check Differential for Leaks
— Inspect the rear axle housing
for signs of leaks. Repair as necessary.
Check Differential Oil Level
— Check the differential oil level
per the component manufacturer's instructions.
Change Differential Oil
— Drain and replace the differential
oil. Use oil meeting, at least, the minimum specifications of the
component manufacturer.
Check Lift Cylinders for Leaks
— Inspect the cylinders for
signs of leaking. Repair as necessary.
Torque Rear Axle Mounting Bolts
— Re-torque the rear axle
mounting bolts: nut at 400 ft. lbs. (542 N•m), bolt at 600 ft. lbs.
(813 N•m).
Chassis
Check Front Wheel Bearings
— Raise and support the front
axle. Check for excessive play in the wheel bearing.
Check Front Axle Oil Level
(if applicable)
— Check the oil
level in the front axle hubcaps. Fill to the proper level as
necessary.
Repack Front Wheel Bearings
(if applicable)
— Remove the
front hubs and repack the bearings using grease meeting, at
least, the minimum specifications of the component
manufacturer.
Check Battery Cables and Holddowns
— Inspect the battery
cables for signs of abrasion or breaking. Repair and reroute as
needed. Ensure that batteries are properly secured.
Check Batteries for Cracks or Acid Damage
— Inspect the
batteries for signs of damage. Replace as necessary.
Clean Battery Cable Connections
— Remove the cable
terminals from the batteries, clean the connections, and
reattach the cable terminals.
Check Battery Box Cover Holddowns
— Check the bolts or
rubber latches to ensure that the battery box cover is secured.
Drain Water from Air Tanks
— With the air system charged,
open each manual drain until all moisture is removed from the
system.
Check and Torque All Wheel Nuts
— Inspect all the wheel
nuts for signs of wear or damage. Re-torque all the nuts to
450–500 ft. lbs. (610-678 N•m).
Check Wheels
— Inspect all the wheels for signs of damage
including oversized holes and cracks.
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