Doosan Power Train D50S-5 Specifications Systems Operation Testing & Adjusting Disassembly & Assembly page 61

Measure shim thickness by following method.
Dimension "Q" : Distance from bearing outer race
surface to spacer surface.
Dimension "S" : Distance from bearing outer race
surface to inner race surface.
From the below equation, define required shim
thickness "Z"............................................ Z = S + Q
EX) From the bearing, "S" = 2.25㎜
From the housing, "Q" = 3.15㎜
Needed shim thickness "Z", Z = 2.25 + 3.15
S
2.25
2.30
2.35
2.40
2.45
Power Train
= 5.40 ㎜
(unit : mm)
Q Z
3.15 5.40
3.15 5.45
3.15 5.50
3.15 5.55
3.15 5.60
Adjustment of Pinion Shaft
1. Assemble bearing cup. Assemble spacer to the
pinion shaft and then, install measured shims onto
the spacer.
2. Insert pinion shaft into the carrier. After
assembling bearing cone, Parking Brake and
Yoke, assemble lock nut.
Apply grease on the outer bearing. Apply loctite
#271 or #277 on the thread of pinion and then,
tighten lock nut.
• Tightening torque : ....................... 440~500N•m
Measure rolling resistance of pinion shaft.
• Rolling resistance :.............. 2~4 N•m (1~3 lb•ft)
Coke lock nut into the slot. of pinion shaft
60
(327~370 lb•ft)
Disassembly and Assembly