Figure 4-4. Table of Periodic Inspection and Maintenance (Sheet 6 of 6)

TM 55-4920-424-13&P

Item

Interval

Method

Inspection and Maintenance

Running Gear

180 Days

Visual and

Remove wheel hub assem-

(Cont)

Operational

blies and check bearings

for damage, flat spots,

corrosion, and freedom

of movement.

Check bearing races for

scoring, nicks, and

looseness.

Check grease seals and

retainers for wear and

damage.

Check br ake shoes and

lining for damage and

wear.

Check brake drums for

scoring and wear.

Check all attaching hard-

ware for cracks and

stripped threads.

Check steering mechanism

for freedom of movement.

Check tie rods for loose-

ness and play.

Speed Increaser

180 Days

Visual

Remove generators and

the aft metal cover, and

check oil seals for leaks.

Drain oil. Inspect oil

drain plug for stripp ed

threads. Separate mag-

netic plug from drain

plug, and check internal

spring for corrosion and

freedom of movement.

Inspect magnet for metal

particles, and for mag-

netization.

Figure 4-4. Table of Periodic Inspection and Maintenance (Sheet 6 of 6)

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