Model | 693 with engine 374.985, 377.941/960/961/984, 904.925/938/980, 906.924/953/973, 926.989 |
Model | 693 with engine 457.919/920/928 |
Model | 694 with engine 377.940, 904.938/976, 924.985 |
Model | 695 with engine 377.962/964/983/987, 457.911/914, 906.973, 924.910, 926.993 |
Model | 695 with engine 457.911/914, 475.979, 476.971 |
Model | 696 with engine 457.923/924/931 |
Cylinder rod travel |
B42.10-0010-01
B42.10-0286-01
| Check | ||
Service brake | |||
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
1 | Operate the engine until you obtain the pneumatic brake system's work pressure | ||
2 | Chock the wheels and release the parking brake | ||
3 | Actuate fully the service brake with the help of another person | ||
4 | Measure the cylinder rod travel (a) | .Cylinder rod travel | |
Mechanic brake regulator | |||
5 | If the travel (a), of at least one cylinder rod, exceeds the established value, adjust the clearance of the brake shoes | ||
| Adjust play of drum brake | . | |
. | |||
In the vehicles that operate under sever conditions, it is recommended to carry out the adjustment of the brake shoes before checking the travel of the cylinders rods travel. | |||
Before adjusting the shoes check the linings wear. | |||
.Cylinder rod travel | |||
.Clearance between the brakepad and brake drum | |||
Automatic brake adjuster | |||
6 | Measure the brake cylinder rod travel | ||
| Checking adjuster | . | |
. | |||
The vehicles equipped with automatic brake regulators do not need periodical adjustments | |||
In the case the cylinders' rods travel exceeds the prescribed value, the operation and installation of the brake automatic regulator must be checked. | |||
| |||
Check the automatic brake regulator, invoicing separately. | |||
Parking brake | |||
7 | The parking brake operates in the service brake mechanism, and does not require an individual adjustment. In order to check its correct operation, actuate the brake and check the uniform displacement of the rear axle's brake cylinder rods. | ||
Control lamp | |||
8 | Apply the parking brake | When actuating the parking brake the warning light at the dashboard must go on | |
9 | Actuate many times the service brake | When depressing the service brake, the peculiar pneumatic resistance must be felt. |
Referenced documents
- ap4210b4253a Check brake lining thickness
- ap4210b4291a Automatic brake adjusters - Checking wheel cylinder release travel
- ar4210b0181a Adjust play of drum brake
- ar4210b0190a Checking adjuster
- as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.