Dongfeng DFA1063DJ10 (14)-301/303. Manual - part 15

Steering System

ST-8

Steering gear overheat 

(its temperature is over 

65°C of the environ-

ment temperature)

1.Too much flow of the oil pump

Replace the oil pump

2.The bending radius of the oil pipe is 
too small or the inner part is blocked and 
cause oil flowing difficult and heated

Replace the oil pump

3.Steering to the limit position need more 
than 5 seconds.

Avoid to turn to the limited position

Steering control is not 

flexible

1.Parts of steering system loose or wear

Tighten or replace

2.Steering gear is loose

Tighten

3.Improper adjusting of the steering gear Adjust the side cover bolt
4.Oil level of the oil reservoir is lower 
than the lowest mark

Add oil

5.Front axle leaf spring fixed bolt loosed Tighten
6.Steering universal joint locking bolt 
loosed

Tighten

Steering wheel return 

failed

1.Insufficient tyre pressure

Inflating

2.Too tight fit of the front axle parts

Adjust

3.Improper alignment of the front wheel

Steering wheel return 

too quick

1.Insufficient oil in the steering oil reser-
voir

Add oil

2.Air in the steering oil pipe

Exhaust

3.Clearance between steering drive shaft 
and the steering universal joint 

Replace the steering universal joint

4.The input torque of the steering gear 
when idling is smaller than 40~60N.cm 
that the mesh of the nut and arm shaft 
loosed.

Adjust clearance

Front Axle

FA

Table of Contents

Construction.................................................................................................... FA-1
Disassembly of the Front brake ...................................................................... FA-2
Maintenance.................................................................................................... FA-3
Assembly and Adjustment.............................................................................. FA-4
Trouble Analysis............................................................................................. FA-5
Appendix 1  Lubricanting Parts and Lubricant .............................................. FA-7
Appendix 2  Tighten Torque of the Bolts and Nuts........................................ FA-7
Appendix 3  Main Adjusting Data and Maintaining Standard ....................... FA-8

Front Axle

FA-1

Front Axle

Construction

Front axle, steering knuckle

1.Upper cover--steering knuckle
2.Gasket--steering knuckle upper cover
3.King pin--steering knuckle
4.Upper bush
5.Left steering knuckle
6.Lower bush
7.King pin blanking cover assy
8.Washer
9.Screw--king pin blanking cover
10.Grease nipple--neck

11.Double head bolt--steering knuckle arm
12.Upper arm--left steering knuckle
13.Left steering knuckle arm
14.Steering limit bolt
15.Dovetail form lockpin--king pin
16.Front axle
17.Adjusting spacer (2.1mm~2.8mm)
18.Thrust bearing assy
19.Right steering knuckle arm
20.Right steering knuckle

Front Axle

FA-2

Disassembly of the Front Brake

1.Front dustproof shield 
2.Rubber plug 
3.Column pin--air chamber push-
rod
4.Front brake bracket assy 
5.Front brake air chamber assy
6.O-ring
7.Front brake cam

8.Bush--air chamber bracket
9.O-ring
10.Adjusting spacer
11.Front brake adjusting arm assy
12.Washer--brake cam
13.Adjusting washer
14.Front brake bottom plate assy
15.Shaft--brake shoe

16.Bush
17.Screw
18.Pin
19.Rivet
20.Brake friction plate
21.Front brake shoe
22.Return spring