© Mar. 2023 36 AB16EJ Plus Maintenance Manual
CHASSIS AND TURNTABLE ASSEMBLY
Table 5-2 Travel drive device
No.
Description
A
Outrigger
B Travel motor
C Travel reducer
D Tire
Check Disengaged Drive Hub Cap
The drive hub in the travel drive device can be engaged
and disengaged. The two positions can be achieved by
obversely mounting and reversely mounting the drive
hub cap, as shown below.
Fig 4
A Drive hub engaged B Drive hub disengaged
1. Drive hub
2. Disengage drive hub cap (obversely mounted)
3. Disengage drive hub cap (reversely mounted)
The drive hub must be engaged for the machine to work
normally. To ensure the normal and safe operation of
the machine, it’s recommended to visually check the
drive hub cap before work.
The drive hub must be disengaged for the machine to
be towed or dragged. To ensure safety, check and en-
sure that the drive hub is disengaged before towing or
dragging, and return the drive hub to its original position
once the towing or dragging is completed.
For the detailed procedures of obversely mounting and
reversely mounting the drive hub cap as well as towing
and dragging, refer to the Emergency Towing in the
Operation Manual.
Check Oil Level in Travel Reducer
The travel reducer with inappropriate gear oil level will
lead to reduced machine performance and even compo-
nent damage. It’s recommended to check the oil level in
travel reducer every 3 months or after 250 working
hours.
1. Drive the machine to rotate the reducer to the posi-
tion with one oil port at the top (as shown below).
2. Remove the oil plug from the oil port 2, and check
the oil level in the reducer, which should be even
with the oil port.
3. Add oil as needed, until the oil level is even with the
oil port 2.
4. Check the oil level in other travel reducers by re-
peating the above steps.
Fig 5 Diagram of checking oil
level in travel reducer
1. Oil port 1
2. Oil port 2
Replace Gear Oil in Travel Reducer
Regularly replacing the gear oil in travel reducer is vital
to maintaining machine performance and extending
service life of the machine. It’s recommended to replace
the gear oil in travel reducer every year or after 1000
working hours.
Replace the gear oil in travel reducer by draining waste
oil and filling with clean oil as follows:
Drain waste oil:
1. Drive the machine to rotate the reducer to the posi-
tion with one oil port at the bottom.
2. Place a suitable vessel under the oil port at the bot-
tom of reducer.
3. Remove the oil plug from the oil port at the bottom
to drain the gear oil in the travel reducer to the
vessel.
4. Reinstall the oil plug.
Fill with clean oil:
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