21
These same fault codes will also be flashed by the external fault LED (connected to Pin 22), if one is
included in the system.
5.6 Maintenance of Rear Axle:
While using your vehicle, the rear axle should be maintained daily, periodically and randomly.
1. Periodic maintenance means the driver should do some daily maintenance before, during or after driving
to prevent something unexpected from happening. The maintenance is focused on inspection and cleaning
as followed:
1) Clean the dust and mud on the cover to keep the axle clean.
2) Check to ensure all the connections are in good condition, in case there is any damage, if any contact
sticks or there is any travel in the contact.
3) Check the gear oil level, if not enough, add some.
4) Check to see if there is any link in the connection and transmission units or any unusual sound inside
the axle.
5) Check the brake drum, the exterior temperature and smell, it should be adjusted and/or repaired
immediately if there is any problem.
6) Check if the breather valve is ventilated or not, in case the oil may have leaked.
7) Check if there is any section in the parking brake cable broken or loose, replace with a new one if
necessary.
2. Periodic maintenance: The axle should get first grade maintenance, second grade maintenance and
third grade maintenance.
* First grade maintenance focuses on lubricate, fixation and gear oil replacement.
* Second grade maintenance focuses on check, adjustment and gear oil replacement.
* Third grade maintenance focuses on the whole part cleaning, assembly and gear oil replacement.
Maintenance in each grade should follow the requirements as shown below.
Period
Grade
Every Month
Do first grade maintenance as required above
Every 2 months
Do second grade maintenance as required above
Every half year
Do third grade maintenance as required above
Malfunction and troubleshooting
Symptom(s)
Possible cause(s)
Troubleshooting
The axle housing
gear and bearing are
damaged and there
is too much noise on
the final drive
1. The gear oil is insufficient or used improperly
Fill with some oil or replace
with new oil
2.The bearing is not assembled correctly
Assemble correctly
3. Adjust the brake shoe pin shim or the interval.
Adjust or replace
4.The gear between axle 1 and 2 is not touched
tightly
Adjust correctly
5.The final drive is too noisy: 1)Check if there is
any impurity 2.check if the gear is damaged
Remove the impurity
(clean), replace the gear
6. Axle 1 strikes heavily
Adjust or replace with a
new one
7. The rear axle is out of shape (check to see if it is
overloaded
）
Replace
Lack of breaking
force
1. There is an interval between the brake shoes
and drum.
Adjust the interval
