Remove/Install Brake Drum - AR42.10-P-1010SR
MODEL 453
MODIFICATION NOTES
| 11.01.2016 | Document revised completely. | ||
| 28.01.2016 | Presetting for outside diameter of brake shoes | Model 453.0 | BE42.10-P-1003-12E |
| Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work. | Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system. | AS42.50-Z-0002-01A | |
| Risk of injury . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Risk of poisoning
from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid |
Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | AS42.50-Z-0001-01A | |
| Notes on repairs to brake system | AH42.00-P-0003-01A | ||
| Brake fluid notes | AH42.50-P-0001-01A | ||
| Remove | |||
| 1 | Release adjusting nut of brake cable on parking brake lever up to end of thread and completely lower the parking brake lever | AR42.20-P-0540SR | |
| 2 | Remove left or right rear wheel | AR40.10-P-1100SR | |
| 3 | Unscrew bolts (2) | ||
| 4 | Remove brake drum (1) from wheel hub (3) | The brake drum (1) must have unobstructed movement. Otherwise, the brake may be damaged. If the brake drum (1) cannot be removed. ↓ Rest brake shoe (4) by turning the adjusting nut (7) through a wheel bolt threaded hole The bimetal fuse (6) may not be used here as a support bushing. Otherwise, the bimetal fuse (6) may be damaged. |
|
| Check | |||
| 5 | Check brake drum (1) for wear and damage | Inside diameter of brake drum In the event of complaints ↓ Replace brake drums (1) and brake shoes (4) on each axle |
*BE42.10-P-1001-12E |
| AR42.10-P-0165SR | |||
| 6 | Check brake shoes (4) for wear and damage | The brake lining of the brake shoes (4) must be absolutely free of grease. Otherwise the braking effect will be impaired. Brake lining thickness In the event of complaints ↓ Replace brake shoes (4) on each axle |
*BE42.10-P-1002-12E |
| AR42.10-P-0165SR | |||
| 7 | Check leaktightness of wheel brake cylinder | In the event of complaints ↓ Replace wheel brake cylinder At the merest hint of a brake fluid leakage, the wheel brake cylinder must be replaced. Otherwise, the braking effect may be impaired. |
AR42.10-P-0167SR |
| Clean | |||
| 8 | Clean brake surface and contact surface of wheel hub (3) on brake drum (1) until they are metallic bright | ||
| 9 | Clean contact surface of brake drum on wheel hub (3) until it is metallic bright | ||
| install | |||
| 10 | Apply light coating of brake paste to centering surface (A) | Brake paste | *BR00.45-Z-1060-06A |
| Measure | |||
| 11 | Measure outside diameter of brake shoes (4), as shown | ||
| 12 | Raise adjusting plate (5) using a screwdriver and adjust outside diameter of brake shoes (4) by turning adjusting nut (7) using a second screwdriver | Presetting for outside diameter of brake shoes | *BE42.10-P-1003-12E |
| If adjusting nut (7) is sluggish ↓ Replace brake adjuster |
AR42.10-P-0165SR | ||
| 13 | Mount brake drum (1) onto wheel hub (3) | ||
| 14 | Tighten bolts (2) | *BA42.10-P-1002-16D | |
| 15 | Mount left or right rear wheel | AR40.10-P-1100SR | |
| 16 | Slowly operate brake pedal repeatedly until an adjustment clicking is no longer heard | The parking brake lever may not be operated here. Otherwise, the parking brake lever of the brake shoes (4) may be pulled onto the wheel hub bolts where they can no longer be released. |
|
| 17 | Adjust parking brake | AR42.20-P-0540SR | |
| Check | |||
| 18 |
Carry out brake test on the test stand | AP42.00-P-4290MCC |
TEST AND ADJUSTMENT VALUES FOR DRUM BRAKE
| Number | Designation | Model 453.3/4 | Model 453.0 | ||
|---|---|---|---|---|---|
| BE42.10-P-1001-12E | Inside diameter of brake drum | New | mm | 203, 2 | 228, 5 |
| Wear limit for maintenance service | mm | 204, 4 | 229, 5 | ||
TEST AND ADJUSTMENT VALUES FOR DRUM BRAKE
| Number | Designation | Model 453.3/4 | Model 453.0 | ||
|---|---|---|---|---|---|
| BE42.10-P-1002-12E | Brake lining thickness | New | mm | 4, 2 | 4, 2 |
| Wear limit for maintenance service | mm | 2, 4 | 2, 4 | ||
| Pad backing plate | mm | 2, 0 | 2, 0 | ||
TEST AND ADJUSTMENT VALUES FOR DRUM BRAKE
| Number | Designation | Model 453.3/4 | Model 453.0 | |
|---|---|---|---|---|
| BE42.10-P-1003-12E | Presetting for outside diameter of brake shoes | mm | 202, 7 (-0, 5) | 227, 6 (-0, 5) |
DRUM BRAKE
| Number | Designation | Model 453 | |
|---|---|---|---|
| BA42.10-P-1002-16D | Bolt, brake drum to wheel hub | Nm | 21 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1060-06A | Brake paste | Q0007414V000000000 |