WEAR LIMIT CHECKS UNDERCARRIAGE
14 - 9
INTERNAL PIN AND BUSHING WEAR (PITCH)
REMARK
To measure track pitch, chain must be tight.
Place end of 3 m (10 ft) tape (1) on front of one track pin and measure
length of four links to front of fifth track pin. Refer to SPECIFICATIONS.
FRONT IDLER FLANGE HEIGHT
Insert 305 mm (12 in) scale (1) in squeeze bar (2). Rest squeeze bar on top
of flange and push scale down until it makes contact in middle of tread area
as shown and take a reading. Refer to SPECIFICATIONS.
TRACK ROLLER ROLLING DIAMETER
Place tips of 305 mm (12 in) caliper (1) against tread area of roller. Adjust
caliper so a slight drag is present when caliper is removed. Using 305 mm
(12 in) scale measure distance between caliper tips. Refer to
SPECIFICATIONS. Repeat steps on remaining rollers.
TOP IDLER ROLLING DIAMETER
Place tips of 305 mm (12 in) caliper (1) snugly around tread area of top idler
and remove. Using 305 mm (12 in) scale, measure distance between caliper
tips. Refer to SPECIFICATIONS.
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