CHASSIS AND TURNTABLE ASSEMBLY
TB20J Plus Maintenance Manual 37
© Feb. 2023
the bolts and nuts, install the bolt and nuts
sequentially.
8. Tighten all nuts by hand first to prevent loosening of
the bolts and nuts. Never apply lubricant to threads
or nuts.
9. Then tighten the nuts step by step in the order as
shown below. Please refer to the recommended tor-
que in the table below for tightening.
Fig 2 Diagram of wheel nuts tightening sequence
Table 5-1 Table of wheel nuts tightening torque
First step
Second step
Third step
150Nm
(110ft-lb)
240Nm
(177ft-lb)
300Nm
(221ft-lb)
5.3 TRAVEL DRIVE DEVICE
The travel drive device is mainly composed of the travel
reducer and travel motor.
Fig 3 Diagram of travel drive device
Table 5-2 Travel drive device
No.
Description
A
Outrigger
B Travel motor
Table 5-2 Travel drive device (Continued)
C Travel reducer
D Tire
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