TM 5-3805-281-24-1
Operational Checkout Procedure
Engine at fast idle.
PROPEL SYSTEM
YES: Go to next check.
TRACKING CHECKS
WHILE PROPELLING
Work mode selector in dig mode.
NO: Note which track
does not move or if
Propel speed switch in fast speed (rabbit).
machine mistracks and
the mistrack pattern. Go
9005
to Propel System
Propel machine at full speed forward on a flat and level area.
10
Tracking Test in Group
17
9025-25.
Repeat procedure in reverse.
Do both tracks move and machine does not mistrack excessively in forward or
reverse?
1/1
Engine at fast idle.
PROPEL SYSTEM
YES: Inspect flow
TRACKING CHECKS
combiner valve in the
WHILE OPERATING A
control valve if machine
Propel speed switch in fast speed (rabbit).
DIG FUNCTION
mistracks during arm out
operation. Inspect propel
Propel machine at full speed forward on a flat and level area.
flow control valve in the
control valve if machine
After machine is moving, actuate the arm function to full actuation to extend the arm
mistracks during boom up
and then to retract the arm. Then actuate boom control lever to full actuation to raise
operation. Go to Group
and lower the boom.
3360.
Does machine mistrack excessively when the arm is extended or boom is raised?
NO: Go to next check.
NOTE: Machine will slow down during this test.
1/1
Engine at fast idle.
PROPEL SYSTEM
YES: Go to next check.
MANEUVERABILITY
CHECK
Propel speed switch in fast speed (rabbit).
NO: Inspect
counterbalance valve. Go
Propel machine at full speed forward down a slope.
to Group 0260.
Turn in each direction.
Repeat the procedure in reverse.
Does each track slow down in response to pedal or lever movement in order to turn?
1/1
2-17
