A
P–21287
1
1
B
P–25158
C
B–14067
Track Frame
Track
Track Sag
2.05 Inches
(52 mm)
Track
Roller
Operation & Maintenance Manual–53–
331/331E/334 Excavator
TRACK TENSION
NOTE: The wear of the pins and bushings on the
undercarriage vary with the working
conditions and the different types of soil
conditions. It is necessary to inspect track
tension and maintain the correct tension. See
Service Schedule, Page 35 for the correct
service interval.
Raise one side of the machine (Approximately four inches)
using the boom and arm [A].
Raise the blade fully and install jackstands under the blade
and track frame (Item 1) [A]. Lower the boom until all
machine weight is on the jackstands.
Stop the engine.
Keep fingers and hands out of pinch points
when checking the track tension.
W–2142–0189
AVOID INJURY
Rubber Track Clearance
Measure the rubber track clearance at the center of the
track frame between the bottom of the track frame and the
contact surface of the track [B] & [C]. Do Not get fingers
into pinch points between the track and the track roller.
Rubber Track Clearance
2.05 inch (52 mm)
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