Check And Adjust Track Sag - Worldwide Construction And Forestry Division 380GLC Operator's Manual

Check and Adjust Track Sag

Check Track Sag
1. Swing upperstructure 90°, and lower bucket to raise
track off ground.
2. Keep the angle (1) 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.
3. Place blocks under machine frame to support machine.
4. Rotate track forward two full rotations and then in
reverse two full rotations.
5. Measure distance (2) at middle track roller from bottom
of track frame to top surface of track shoe.
380GLC—Specification
Track—Sag .........................................................................340—380 mm
1— Boom-To-Arm Angle
Adjust Track Sag
IMPORTANT: Prevent possible damage to track
components. DO NOT use the grease fitting on
the track adjusting cylinder for lubrication. Use
this fitting ONLY for track adjustment.
1. To tighten track, connect a grease gun to grease fitting
(1) (located through access hole (4) in track frame.)
Add grease until sag is within recommended limits.
CAUTION: Prevent possible injury from high
pressure grease. DO NOT remove grease
fitting (1) from nut (2).
2. To loosen, slowly turn nut (2) counterclockwise; grease
will escape through the bleed hole (3).
3. When amount of track sag is satisfactory, turn nut
clockwise to tighten.
Specification
Nut—Torque...............................................................................90.0 N·m
1— Grease Fitting
2— Nut
Maintenance—As Required
13.4—15.0 in.
2— Distance
66.4 lb.-ft.
3— Bleed Hole
4— Access Hole
3-3-2
Machine Position
Track Sag Measurement
DB84312,0000145 -19-22AUG12-1/2
Grease Fitting
Access Hole
DB84312,0000145 -19-22AUG12-2/2
092221
PN=150