TM 5-3895-346-14
ROLLER MAINTENANCE
Engine
For detailed operating and maintenance instructions, see Engine Operating Instructions, page 12, and Engine
Overhaul, page 45.
Daily Checks:
Coolant level
Air intake connections and air
Crankcase oil level
cleaner
Exhaust system
Coolant hoses
Fittings on injection lines
Fan belts and miscellaneous
Power Steering
Power steering system consists of pump and reservoir, orbitrol and booster cylinders, and connecting hoses.
Daily inspection shall be made to be certain that all hydraulic connections are tight. A loose connection will
allow fluid to escape and cause air to be drawn into the system, resulting in noisy and erratic operation.
Inspect hydraulic fluid in the reservoir for evidence of foreign particles. When contamination is found, the
system shall be drained. Clean reservoir thoroughly before refilling. Remove all lint particles to avoid possible
clogging of system filter. Refill reservoir with new automatic transmission fluid, type A, poured through a
filtered or screened funnel.
When filling, permit oil to settle into the system and fill the reservoir. Start engine, and, while maintaining oil
level in the reservoir, turn the steering wheel slowly to the right and left to purge air from the system. Oil level
should be at FULL position when hot. For troubleshooting and additional inspection and maintenance
information, see Power Steering information on page 555.
Brakes
Check brakes occasionally for proper adjustment.
Shoes are adjusted in a conventional manner by a star wheel ratchet accessible through the backup plate
assembly.
Check fluid in master cylinders for proper level and keep plumbing fittings tight to prevent leaks in system.
Inspect hydraulic brake lines frequently for abrasive wear against frame members or rotating wheel parts, and
accidental kinks and sharp bends.
Parking Brake
Minor adjustment and takeup of parking brake is accomplished by rotating knurled knob on parking brake
handle.
Differential Axle
See Lubrication Chart.
Articulated Hinged Joints
These joints are equipped with heavy- duty, self-aligning bearings which can be adjusted to take up any
looseness which may occur. Adjustment is made by turning the hex nuts, one located on top and one on
bottom of hinged joint. Adjust top and bottom nuts alternately, a little at a time, checking after each adjustment
to maintain an equal gap above and below the yoke assembly. Caution should be taken not to overtighten.
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