Dongfeng DFA1101GZ5AD6J-907. Manual — part 19

General Adjustment

9—11

15° normally. If it is too large, check and
adjust the following part:

Check and adjust the clearance of the

bearings of the front wheel hub.

Check the tightness of tie rod ends

and drag link joints, and adjust them.

Check whether the fastening bolts are

loosen at the connection of the spline of
the pitman arm and its shaft.

Adjustment for Toe-in

Check and adjust toe-in every

12,000km, which recommend value is
0~5mm, if toe-in is adjusted improperly,
the tyre wear would be increase.

The adjusting method is as follows:
Park the truck on a level ground

before checking, the front axle is lifted by
a jack, the front wheels are put to run
straightly. Screw off the clamp bolts on tie
rod, turn the tie rod with pipe wrench and
the proper value of toe-in can be achieved
by adjusting.

Make a mark in the middle of tyre

engraving of the right and left tyre when
adjusting, then measure A, B value

respectively in the front of the axle and
behind it.

After adjusting, if the condition is

permitted, check the side sliding of tyres.
The specified side sliding is between
3~5mm/m.

Maintenance Schedule

10—1

Maintenance Schedule

It's necessary for periodical inspection and maintenance of truck to

prolong its service life, improve its power performance and fuel
economy, so periodical inspection and maintenance should be carefully
carried out according to the following items. Then it will achieve the max
economic and social benefits.

The users have to do the maintenance accord with the specific con-

tent in this chapter. The following schedule is not only for maintenance
items of 80,000km, but also for normal maintenance items after
80,000Km.

☆——

Running in maintenance items:1,500~2,500km

★——

Normal maintenance items

Note:
Customers should carry out the inspection and maintenance intervals according to

the different area condition. Properly shorten the maintenance intervals can ensure the
truck to get the reasonable maintenance and move reliability. Never prolong the
intervals.

Engine

Maintenance Items

Maintenance Intervals （× 1000km）

4 8 12 16 20 24 28 32 36 40 44 48 80

Clean engine assembly

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check the performance of

accelerating and decelerating

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check the condition of exhaust

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check engine lubricant oil for

leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check the cleanness and capacity of
lubricating oil

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check fuel system for leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check cooling system for leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check the fan belt for damage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Clean up the sediment of fuel

prefilter

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check and clean air filter and its
cartridge

☆

★

★

★

★

★

★

Maintenance Schedule

10—2

Replace lubricant oil of engine

☆

★

★

★

★

★

★

Replace oil filter

☆

★

★

★

★

★

★

Check and adjust the valve
clearance

☆

★

★

★

★

Change the fuel filter and fuel-water
separator

★

★

★

★

Replace air filter cartridge

★

★

Check compressing pressure

★

Check the injection pressure

★

Check the injection timing

★

Check the injection flow for injection
pump

★

Check the oil supply pump for its
operation

★

Check the function for the

thermostat

★

Check the working conditions of the
radiator

★

Clean the engine cooling system

★

Check the working condition of the
supercharger, replace it if necessary

★ ★

Clutch

Maintenance Items

Maintenance Intervals （× 1000km）

4 8 12 16 20 24 28 32 36 40 44 48 80

Check working condition of

clutch

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check clutch pedal free play

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check hydraulic pipe line and
pump for leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check the slave cylinder for

leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check brake fluid level in clutch
oil reservoir

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Engine

Maintenance Items

Maintenance Intervals （× 1000km）

4 8 12 16 20 24 28 32 36 40 44 48 80

Maintenance Schedule

10—3

Change hydraulic oil of clutch

★

Transmission

Maintenance Items

Maintenance Intervals （× 1000km）

4 8 12 16 20 24 28 32 36 40 44 48 80

Clean transmission and its vent plug

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check transmission oil level

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check transmission for oil leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Change transmission lubricant oil

☆

★

★

Check the connections of control
mechanism for looseness

☆

★

★

Check working condition of every
bearing

★

Disassemble and check

transmission

★

Brake System

Maintenance Items

Maintenance Intervals （× 1000km）

4 8 12 16 20 24 28 32 36 40 44 48 80

Check brake pedal free play

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check effectiveness of brake and
parking brake

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check brake line and valve for
leakage

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check and adjust the clearance of
brake drum and lining

☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★

Check the tightness of the brake
support plate

☆

★

★

★

★

Check brake drum and brake shoe
for wearing

★

★

Clutch

Maintenance Items

Maintenance Intervals （× 1000km）

4 8 12 16 20 24 28 32 36 40 44 48 80