TM 5-3805-281-10
Operational Checkout
4 UNDERCARRIAGE CHECKS
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TRACK SAG ROLLER
YES: Go to your
AND IDLER LEAKAGE
authorized dealer for
CHECKS
repair if oil leakage is
noted from idlers or
rollers.
NO: Go to next check.
T6915AN
UN07APR89
T7850AI
UN22OCT92
Track--Specification
Sag ................................................................................ 340--380 mm (13-3/8--15.0 in.)
Swing upperstructure to side and raise track off ground.Operate track in reverse.
Stop engine.
Measure distance between top of track shoe to center of lower surface of track frame.
Check rollers and idlers for oil leaks.
Is oil leaking from rollers or idlers?
Raise other side of machine and repeat checks.
NOTE: If track sag is less than specified, track chain wear will be accelerated. If it is
less than specified on one side only, the machine may mistrack.
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