Dongfeng DFA1101GZ5AD6J-907. Manual - part 53

 

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Dongfeng DFA1101GZ5AD6J-907. Manual - part 53

 

 

Brake System

BR-8

Rear Brake

Disassembly

After remove the rear axle half axle, take down the brake drum and wheel hub assembly, then dismount rear

brake adjust arm, brake cam, air chamber bracket, brake shoe with bottom plate assembly, and dust shield in
sequence.

Check

1.Make sure whether the brake drum is damaged or distorted, replace if necessary.

2.Make sure whether the brake shoe with linings is cracked, replace if necessary.

3.Check the roller surface for any cracks and damages, replace if necessary.

4.Check the return springs.

Note:
After replace the friction plate, the excircle of the friction plate needs to be wholly machined. That is to

install the brake shoe and brake bottom plate together, and make use of the bottom plate to position to machine the
excircle of the friction plate.

Assembly

1.Install the brake to the bottom plate, screw on the screw and fasten with steel wire, then machine the excircle of

the brake shoe friction plate.

2.Install the brake shoe and brake bottom plate to the two ends of the rear axle housing, the tightening torque of

the bolt is 130~160N.m, and then install the pressing dust shield.

3.Install the air chamber bracket and fasten, then set to the brake cam and assemble the adjusting spacer. After

that, install the brake adjust arm to the brake cam and lock with a clamp ring, connecting the air chamber push
rod to the brake adjust arm with flat pin.

4.The return spring is hooked between two brake shoes.

Adjust

Disassemble the rubber dust shield of the inspection hole
and the adjust arm. Make use of a double offset ring
spanner to press the lock bush of the worn shaft head,
turn the worm shaft to let the friction plate surface and
inner surface of brake drum contact, then turn worm
shaft loose for 1/2~2/3 circle. At this time, the clearance
between center of two brake shoe friction wafers and
brake drum is about 0.7mm, and the brake drum can turn
freely without interfere with other parts.

After air entered the chamber, the push rod must be out
immediately, and after exhaust, it can return without block. The travel of the air chamber push rod is between 25
±

5mm.

 Lubricate

1.Brake shoe roller shaft

2.Roller hole

3.Roller surface

4.Other parts refer to the front brake

Brake System

BR-9

Frame Brake Pipeline

1.Elbow fitting
2.Exhaust brake valve assembly 
3.Air line assembly--
electromagnetic valve toexhaust 
brake valve
4.Fitting, tube
5.Three way fitting
6.Nylon pipe assembly
7.Nylon pipe assembly
8.Nylon pipe assembly
9.Nylon pipe assembly
10.Three way fitting
11.Nylon pipe assembly
12.loading sensing valve assembly
13.Air line assembly 
14.Fitting

15.Air line assembly 
16.Nylon pipe assembly
17.Nylon pipe assembly
18.Quick release valve 
subassembly
19.Nylon pipe assembly
20.Hose assembly
21.Hose assembly
22.Hose bracket
23.Hose assembly
24.Fitting, elbow
25.Hose assembly
26.Nylon pipe assembly
27.Hose assembly
28.Air line assembly--desiccator to 
dampAir tank assembly

29.Air desiccator and unloader 
valve subassembly
30.double direction valve and 
Quick release valve subassembly
31.Hose assembly
32.Nylon pipe assembly
33.Hose assembly
34.Fitting, elbow
35.Hose assembly
36.Nylon pipe assembly
37.Nylon pipe assembly
38.Nylon pipe assembly
39.Nylon pipe assembly
40.Nylon pipe assembly
41.Hose assembly
42.Air line assembly

Brake System

BR-10

Cab Brake Pipeline

1.Brake valve assembly
2.Hose bracket
3.Bracket, upper
4.Nylon pipe assembly--Brake 
valve 21 connect hole to hose 
bracket

5.Nylon pipe assembly--Brake 
valve 22 connect hole to hose 
bracket
6.Nylon pipe assembly--Brake 
valve12 connect hole to hose 
bracket

7.Nylon pipe assembly--Brake 
valve11connect hole to hose 
bracket
8.Jacket
9.Transition tie-in

Brake System

BR-11

Hand Control Valve Control  System

1.Air line assembly--hose bracket to hand control valve 1 connect hole
2.Air line --hose bracket to hand control valve 1 connect hole
3.Air line assembly--hose bracket to hand control valve 2 connect hole
4.Air line--hose bracket to hand control valve 2 connect hole
5.Hand control valve assembly

 

 

 

 

 

 

 

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