Service Repair Manual
Models
385B EXCAVATOR
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Product: EXCAVATOR
Model: 385B EXCAVATOR BKX
Configuration: ISJ HEX COMMONALITY CHART BKX00001-UP (MACHINE)
Disassembly and Assembly
385B and 5090B Excavators Excavator Systems
Media Number -RENR5407-06
Publication Date -01/02/2016
Date Updated -12/02/2016
i01674800
Final Drive - Disassemble
SMCS - 4050-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A
1P-2420
Transmission Repair Stand
1
B
138-7575
Link Bracket
3
C
138-7576
Link Bracket
2
D
132-8119
Hydraulic Wrench
1
132-8223
Hydraulic Pump and Motor Gp
1
9U-7418
Hex Bit Socket
1
E
176-6536
Forcing Bolt
2
Start By:
a. Remove the final drive. Refer to Disassembly and Assembly, "Final Drive - Remove".
1. Thoroughly clean the outside of the final drive prior to disassembly.
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Illustration 1
g00865168
2. Fasten the final drive to Tooling (A). Put an alignment mark across the sections of the final
drive for assembly purposes. All parts must be reinstalled in the original locations. The
weight of the final drive is approximately 1020 kg (2250 lb).
Illustration 2
g00865172
3. Remove socket head bolts (1) from the final drive cover.
Illustration 3
g00865173
4. Fasten Tooling (B) and a suitable lifting device to cover (2).
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5. Remove bolts (3). Use a soft faced hammer to break the seal between the cover and the ring
gear. Remove cover (2). The weight of the cover is approximately 95 kg (210 lb).
Illustration 4
g00865183
6. Remove spacer (4) and the shims from the cover.
7. Remove socket head bolts (5) and ring gear (6) from the cover.
Illustration 5
g00865487
8. Remove sun gear (7).
Illustra