Service Repair Manual
Models
312C and 312C L Excavator
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Product: EXCAVATOR
Model: 312C EXCAVATOR BNN
Configuration: 312C & 312C L Excavators BNN00001-UP (MACHINE) POWERED BY 3054T Engine
Disassembly and Assembly
312C Excavator Machine Systems
Media Number -RENR7476-00
Publication Date -01/07/2003
Date Updated -22/07/2003
i03040582
Final Drive and Travel Motor - Disassemble
SMCS - 4050-015; 4351-015
S/N - BNN1-UP
Disassembly Procedure
Table 1
Required Tools
Tool Part Number
Part Description
Qty
A
138-7573
Link Bracket
3
B
1P-2420
Transmission Repair Stand 1
C
-
Bolt (M6)
2
D
1P-0074
Slide Hammer Puller Gp
1
4C-5666
Threaded Adapter
1
123-6702
Backlash Gauge Gp
1
E
1P-0510
Driver Gp
1
F
8H-0663
Bearing Puller Gp
1
G
1P-1863
Retaining Ring Pliers
1
H
9U-7346
Spanner Wrench As
1
Start By:
A. Remove the final drive and the travel motor. Refer to the Disassembly and Assembly, "Final
Drive and Travel Motor - Remove".
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NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not rel