Komatsu PC200-8M0 Shop Manual page 1033

300 Power train
Disassembly and assembly of final drive assembly
5. Install bearing (27) by tapping it lightly with the
push tool.
6. Ring nut
1) Install the ring nut according to the follow-
ing procedure.
1] Rotate the hub two to three times.
2] Use tool J6 and push tool [5] to press
the inner race of bearing (27).
a Pressing force:
29.4 to 38.2 kN {3.0 to 3.9 ton}
3] Rotate the hub to the both directions
at least five times in total with the
bearing inner race pressed.
4] Release the pressing force.
5] Press the bearing again.
a Pressing force:
17.7 to 21.6 kN {1.8 to 2.2 ton}
6] Rotate the hub two to three times.
PC200, 200LC, 220, 220LC-8M0
7] Measure dimension (a) under the
condition described in 6].
a After measuring dimension (a),
remove tool J6.
8] Measure the thickness of ring nut (25)
and name it (b) dimension.
9] Subtract (b) from (a), and name it (c).
10] By using tool J4, tighten ring nut (25)
until dimension (d) is as shown.
Dimension (d): c (+0.06/-0.04) mm
2) Measure the tangential force of the hub
against the motor case in the rotation
direction using the push scale [6].
a Tangential force: Max. 490 N {50 kg}
a The tangential force denotes the
maximum force at start of the rotation.
SEN06144-00
17
50-300