TM 9-2350-230-12, C12
Table 4-1. PREVENTIVE-MAINTENANCE CHECKS AND SERVICES
INTERVAL AND
SEQUENCE
B - BEFORE OPERATION D - DURING OPERATION A - AFTER OPERATION
REFERENCE
B
D
A
ITEM TO BE INSPECTED
PROCEDURE
74
Vehicle
Clean interior and exterior, removing dirt, mud, and excess
grease. Use water hose on vehicle exterior only, avoid
directing stream in areas where it might enter fire
control or armament openings, vehicle interior, engine
exhaust system or personnel heater outlet.
NOTE. Visually inspect for evidence of lubricant and
fuel leaks.
SUSPENSION SYSTEM
1
75
Components
Inspect entire suspension system for tampering, excessive
wear, damage, or looseness.
64
76
Wheel Hubs and
a.
Feel wheel hubs cautiously for noticeable variations of
Shock Absorbers
temperature between like components An overheated hub
indicates a maladjusted, inadequately lubricated, or
damaged bearing. Shock absorbers should feel warmer
than the hull. If cold, shock absorbers are not working.
2
77
b.
Check grease in road wheel and idler hubs, or
check for lubricant leaks
78
Torsion Bars
Pry up each road wheel to detect broken torsion bars
Broken front torsion bars may be detected by the absence
of the sharp angle of track as it passes under the road
wheel. Check if torsion bar covers are secure.
3
79
Track
Check track tension. Adjust if required
NOTE. 50 miles after initial break-in or whenever track
pin nuts have been disturbed, retorque track pin retaining
nuts to 120-130 lbs. -ft.
HULL (EXTERIOR)
4
80
Driving Lights
Check operation. Inspect for broken or discolored lenses
Turn on infrared lights and check operation by placing
hand on lens. Heat will be noticeable if light is operating.
Replace damaged lamps if authorized.
81
Towing Shackles
Must be secure
82
Personnel Heater,
Remove any mud or debris. Clean drain holes with wire or
3, 17, Fig.
Bilge Pump,
suitable tool
and Hull Drain
Holes
5
Fixed Fire Extinguisher
Check condition of fixed fire extinguisher exterior actuating
Exterior Control
handle. Safety wire must be intact.
4-2