Idlers
See pages 56 through 58 for detailed idler
information.
Measurement — Use the depth gauge to
measure idlers.
Carrier Rollers
See pages 59 through 60 for detailed carrier
roller information.
Measurement — Use the caliper or the
Ultrasonic Wear Indicator to measure
carrier rollers.
Track Rollers
See pages 61 through 65 for detailed track
roller information.
Measurement — Track rollers can be
measured with a depth gauge, a caliper or
an Ultrasonic Wear Indicator. The wear
charts include both measurements. For
instructions on how to make either mea-
surement see page 61.
Roller Flange Sequence
From the chart which follows, you will
note that the rear roller (the roller nearest
the sprocket) is usually a single flange
roller. If a double flange roller were used
as the rear roller, interference could occur
between the inner flange and the sprocket
teeth. Therefore, a double flange roller
should not usually be placed in the rear
position.
Rollers Roller Position
Model Per Side F 234567
D2 4 SDDS
D3 7 DDSSDSS
D3 5 SDSDS
D3 LGP 6 S D S S D S
D4NC 4 S D D S
D4, D4D, D4E 5 S D S D S
D4C, D4G 5 S D S D S
D5, D5B 6 S D D S D S
D5 LGP 7 S D D S D D S
D5C, D5G 6 S D S S D S
D5C, D5G 5 D D S D S
D6 6 SDDDDS
D6 LGP 7 DDSDSDS
D6B, D6NC 6 S DDDDS
D6C, D6D 6 D S D S D S
D7NC (8.00'') 5 S D S D S
D7 6 DSDSDS
D7 LGP 7 DDSDSDS
D7D, D7E, D7F, D7G 6 D S D S D S
D8 7 DDSSDDS
D8 6 DSDSDS
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