Chapter II Technical Information of Engine
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
41
Fig. 2-8-12 Air cleaner (for reference only)
Fig. 2-8-13 Cleaning the air cleaner filter
core
and the filter core should be cleaned per 4000 ~ 5000 km
of traveling distance.
(1) Cleaning of the air cleaner housing and cover: Wipe
away the dust inside the housing, on the cover and on
the surface of air cleaner when maintaining and
replacing the filter core of air cleaner.
(2) Cleaning of the filter core: when the filter core is
polluted by dust and is in a dry condition, the
compressed air may be used to clean the dust. Blow the
filter core from the inner side to remove the dust by use
of the compressed air. The pressure of the compressed
air should be less than 490 kPa.
Caution:
Do not blow the filter core from the outer
side, or else the dust will enter the inner side of filter core
(clean face).
The filter core should be replaced with a new one in
following cases.
——The filter core is polluted by carbon deposit or
grease.
——The filter core is seriously contaminated and the
contamination is hard to remove.
——The filter core is deformed and damaged.
Caution:
(1) The paper filter core is not allowed to be washed with
oil or fresh water, or else the filter core will be easily
contaminated by dust, and this will cause insufficient air
intake; as a result, power loss and black smoke in
exhaust may result.
(2) The tightness at the joint between the air intake pipe
and the air cleaner must be checked regularly, the
packing and the connecting pieces for tightening should
be replaced if a leakage is found to avoid abnormal wear
of the diesel engine.
4. Technical Maintenance for Oil Supply
System
4.1. Technical Maintenance for Fuel Filter
The function of fuel filter is to filter the impurities in diesel
so as to prevent precision accessories in oil supply
system from wear.
Air cleaner cover
Filter core
Air cleaner housing
