TM 5-3805-281-10
Maintenance--As Required
CLEAN AIR CLEANER DUST UNLOADER
VALVE
IMPORTANT: A missing, damaged, or hardened dust
unloader valve will make the dust cup
precleaner ineffective, causing very
short element life. Valve should suck
closed above 1/3 engine speed.
Squeeze dust valve (A) to remove dust from the air
cleaner.
If operating in high dust conditions, squeeze dust valve
A--Air Cleaner Dust Unloader Valve
every couple of hours of operation to release dust.
TX,55,DH5084
1902JUL961/1
CHECK TRACK SAG
1. Swing upperstructure 90 and lower bucket to raise
track off ground.
2. Keep the angle (A) between boom and arm 90--110
and position the bucket's round side on the ground.
CAUTION: Prevent possible injury from
unexpected machine movement. Place blocks
under machine frame to support machine while
measuring track sag.
A--Boom-To-Arm Angle
3. Place blocks under machine frame to support machine.
4. Rotate track forward two full rotations and then in
reverse two full rotations.
Continued on next page
TX,55,DH5720 1925APR971/2
