Dongfeng DFA1063DJ10 (14)-301/303. Manual - part 21

Suspension

SP-5

7.Remove the fixed bolt of the leaf spring front enf spring

pin, then take down the leaf spring pin and let down the
jack and take out the leaf spring;

8.Loose the lifting eye locking nut, and take down the lift-

ing eye pin and you can remove the lifting eye.

Disassembly of the rear suspencion

1.Wedge the front wheel, lift the rear axle and rear part of

the frame with a jack and the safety support, then take
down the rear wheel;

2.Unscrew the set nut from the lower end of the damper,

and take off the related parts;

3.Loosen the set nut of the damper pin from the upper end

of the damper, remove the related parts, and take down
the damper;

4.Loose the U-bolts and nuts, remove U-bolt underplate, U-

bolt and cover board;

Suspension

SP-6

5.Slowly down the jack to fall the rear axle to the ground,

and remove the sub leaf spring assembly and sub-leaf
spring underplate;

6.Disassemble the the rear end of the the leaf spring.

Remove the fasten bolt of the leaf spring pin and pull the
spring pin out then you can disassemble the rear end of
the leaf spring rear end;

Note: When pulling the spring pin, you must use the

the threaded sleeve of the spring pin. Before remove the
lock bolt of the leaf spring pin, screw the threaded sleeve
off a little then pull, or you can use the pin puller with
thread.

7.Remove the cotter pin used to fix the front pin of the rear

leaf spring, then take down the front pin of the rear leaf
spring, down the jack then remove the rear leaf spring
finally;

8.Take down the cotter pin of the lifting eye pin, and make

use of an iron rod(diameter=15mm) went through the
special hole used to remove the lifting eye pin, then push
the pin out to take down the lifting eye.

Disassembly of the front and rear leaf spring

1.Take down the clamp;

2.Clamp the center part of the leaf spring by a C-shape clip;

3.Take down the center bolt;

4.Loose the C-shape clip slowly and detach the spring leaf.

Suspension

SP-7

Check

1.Measure the outer diameter of the spring pin and lifting

eye pin

2.Inner diameter of the spring bush and lifting eye bush

3.Clearance between spring pin, lifting pin and bush:

                    Spring pin and bush:

                        Repair standard                  0~0.302mm

                        Wear limit                               1.0mm

                    Lifting pin and bush

                         Repair standard                 0.08~0.252mm

                         Wear limit                               1.0mm

4.Check the spring leaf for any cracks or wear condition;

5.Measure the wear condition of the spring leaf, if the wear value is over 15% of the standard thickness, please

replace the spring leaf.

             Standard thickness of the front leaf spring is 9mm, wear limit is 7.65mm;

             Standard thickness of the rear leaf spring is 10mm,  wear limit is 8.5mm;

            Standard thickness of the sub-leaf spring is 8mm,  wear limit is 6.8mm.
Note: If one of the leaf spring is broken, you'd better replace the whole leaf spring assembly. Only replace the

broken one may cause others damaged very soon.

Wear limit

Front suspension

17.5mm

Rear suspension

29.5mm

Wear limit

Front suspension

19mm

Rear suspension

31mm

Suspension

SP-8

Assembly

Assembly of the sub-assembly

Assemble the leaf spring by center bolt accord the sequence of the spring leaf;

Note: Smear some black lead lime grease on the relative friction surface of the spring leaf.

Clamp the leaf spring by a C-shape clip, and tighten the center bolt and nut;

Take down the C-shape clip from the leaf spring;

After tightening the center bolt, rivet the connecting thread of the bolt and nut to lock;

Install sleeve and bolt on the clamp and tighten the nut;

After tightening the clamp bolt, rivet the connecting thread of the bolt and nut to lock.

Assembly of the front suspension

1.Smear a layer of grease on the spring bush and lifting eye bush before assembling;

2.Install the lifting eye to its bracket and insert the pin, then

tighten the locking nut;

3.Install the front leaf spring assembly, cover board, limit

block to the front axle and lift the front axle with a jack;

4.Align the bracket hole of the fixed end to the spring eye,

then insert the spring pin;

Note: Make the spring pin slot align to the set bolt.

5.Install the set bolt;

6.Install the rear end of the spring, align the lifting eye and

spring eye, then insert the lifting eye pin;