Track Rollers - Mitsubishi Heavy Industries BD2G Service Manual

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TRACK ROLLERS
Removal
Preparatory steps
(1) Loosen the tracks.
(2) Drain the oil from the track rollers.
1.
Place two wood blocks "A" of 300-mm
(12-in.) square section behind the
sprockets in a chocking manner, and
move the machine to ride onto these
blocks until the track rollers "1" and
"3" float up and away from the track.
2. Apply the brake lock, and chock the
tracks at front end with blocks "B."
3. Remove the following parts:
1 Track roller (center, 3 pcs)
2 Track roller guard (front and rear)
3 Track roller (front and rear)
Weight of track roller
Installation
15 kg (33 Ib),
approx.
1. To install the track rollers, follow the
reverse of removing procedure.
2. Drive the machine forward out of its
chocked condition.
Tightening torque for
track roller bolts
6.0 ± 0.6 kgf·m
(43.4 ± 4.3lbf·ft)
[58.8 ± 5.9 N·m)
602429
. .
602430
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