TM 5-3805-281-24-1
Tests
9. To check propel motor for leakage at stall, install pins
or round bar stock (D) between the sprocket and track
frame.
Actuate propel pedal for function being checked to full
stroke for one minute.
Repeat procedure by stalling the propel motor in
several positions and then take an average of
readings. Repeat procedure for the opposite direction.
10. Compare amount of leakage to specifications.
Propel Motor While Propelling With Track Raised--Specification
Leakage ................................................. 3.0 L/min (0.79 gpm) typical new
Propel Motor While Stalled--Specification
Leakage .................................................... 6 L/min (1.58 gpm) typical new
If leakage is more than specification, repair or replace
motor.If leakage is substantially more in one direction than
the other, a seal in the rotary manifold may be leaking. To
isolate leakage to the propel motor or rotary manifold,
check leakage at the propel motor.
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