Variables That Affect
Wear Life
See pages 11 through 25 for details on the
effects of: Page
Controllable Variables ............................11
Track Adjustment..........................11
Shoe Width....................................12
Alignment......................................14
Non-Controllable Variables....................21
Soil & Underfoot Conditions........21
Underfoot Conditions....................22
Partially Controllable Variables..............25
Components
Links
See pages 28 through 35 for detailed link
information.
Measurement — Measure track links
over the centerline of the pin and bushing
bores. See page 28 for details on measur-
ing links.
Split Master Links — Use the assembly
procedures on page 33 for split master
links. Refer to “Shoes” on the following
page for bolt torque specifications.
Pins and Bushings
All hydrostatic loaders use Sealed and
Lubricated Track. See pages 36 through
43 for details. The following points are
specifically for hydrostatic loaders:
Measurement — Use the caliper or the
Ultrasonic Wear Indicator to measure all
three bushing contact sides: forward,
reverse and vertical. Use the most worn
position to make projections. It is neces-
sary to measure all three bushing contact
sides, because unlike track-type tractors,
the vertical dimension is not usually the
most worn dimension. In many applica-
tions, the reverse drive side wear is the
greatest due to reverse operation with a
loaded bucket and/or packing.
See details on measurement procedure on
page 36.
The depth gauge should not be used before
a bushing turn because it only measures
vertical bushing wear. After a bushing turn
the depth gauge can be used to approxi-
mate wear.
Dry Joints — See page 42 for dry joint
inspection procedures and recommended
service. If a dry joint is found, measure pitch
extension over that one joint. Schedule
service if the pitch exceeds these limits:
Dry Joint Wear Limit
New Track Single Joint
Model Pitch Wear Limit
943 6.75" (171.5 mm) 7.25" (185 mm)
953 6.91" (175.5 mm) 7.50" (190.5 mm)
7.50" (190.5 mm)
963 8.00" (203.2 mm) 8.67" (220 mm)
973 8.50" (215.9 mm) 9.12" (232 mm)
429
COMPONENTS
Hydrostatic Loaders