Table 4-1. Unit Preventive Maintenance Checks and Services (Cont).
H-Hours of operation
M-Monthly
S-Semiannually
(As indicated)
(100 hours)
(500 hours)
Item
Item to be Inspected
Procedures
No.
H
M
S
19
Swivel Caster
Inspect swivel casters and associated
frame mountings for breaks, cracks, bent
members, or broken welds. Check for
freedom of movement and lubricate as
required.
20
Suspension Assemblies
a.Inspect shackles, bearings, pins, leaf
springs and spring eyes for damage or
broken parts.
b.Inspect mounting brackets for cracks
or loose or missing hardware.
21
Axle
a.Check for damaged axle tube.
b.Check for loose or missing U-bolts or
nuts.
22
Wheels and Tires
a.Check serviceability of tires as
indicated in TM 9-2610-200-24.
b.Tighten wheel stud nuts to 450 to 500
ft-lb (611 to 678 N·m).
23
Brakes
a.Inspect brake linings for wear.
Replace if brake shoe lining is less
than 1/8-inch (3 2 mm) thick.
b.Inspect brake adjusting screw,
retaining screw, retaining pins,
springs,
and clips for corrosion and
wear.
c. Inspect hydraulic wheel cylinders for
leaks.
d.Adjust brakes.
24
Wheel Bearings
Clean and repack wheel bearings.
25
Hydraulic Brake Hoses and
Inspect for dents, cracks, loose
Fittings
connections and leaks.
4-11
