WP13 Diesel Engine Series Operating Manual
20
5.4 Complete Regular Maintenance and Keep Detailed Records
Table 5-2 Class-II Use Conditions for Vehicle matching
(WG Class Ⅰ
ⅠⅠ
Ⅰ) (WG Class Ⅱ
ⅡⅡ
Ⅱ)
Harsh use conditions (extremely hot or cold climate, high dust contents,
short-distance transport, worksite use, or use on buses, municipal
engineering vehicles, snow removal trucks and fire fighting trucks) or the
vehicle annual mileage is less than 2 × 10
4
km or its yearly working time is
less than 600h
Multi-function commercial vehicles
of with its annual mileage more than
2 × 10
4
km
Table 5-3 Maintenance Period
Service conditions
Item
Mileage (time)
WGⅠ WGⅡ
First mandatory
maintenance
3000km(50h) A A
Routine maintenance
10000km(200h) B C
30000km(400h) B
Therein, for WG Class-II, contact Weichai Power Maintenance Service Center for
National-III Landking Engines once every 10000 kilometers’ (200 hours’) working.
A- First mandatory maintenance: replace the engine oil and oil filter, but do not replace the fuel
strainer and fine filter elements.
B- Routine maintenance: Replace the engine oil, oil filter element, fuel strainer element and fuel
fine filter element.
C- Only replace the oil filter element.
Table 5-4 Specifications for Diesel Engine Maintenance
Diesel engine maintenance contents
First
mandatory
maintenance
Routine maintenance
Replace the oil filter or filter element ● When replacing the engine oil every time
Check and adjust the valve clearance ● ●
Check the coolant level and fill with enough
coolant
● ●
Fasten the cooling pipe and pipe clamps ●
Fasten the intake manifold, hose and flange
connectors
● ●
Check the air filter maintenance indicator
lamp or indicator
●
Clean the dust collector of the air filter (not
including the types of automatic dust
removal)
●
Clean the main filter element of the air filter
When the indicator lights up
Replace the main filter element of the air
filter
Refer to the relevant Manual provisions.
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