Pneumatic brake system |
Number | Designation | Chassis 368.00/05/10/11/15; 382.07/08/11/12/15/17/18; 384.06/07/11/14/20/22/31/33; 634.001/011/012/014/061/071/081; 693.02/10/12/14/15/17/18/19/34/38; 694.00/02/04; 695.01/02/03/04/05; 695.30; 696.08/09; 696.36 | ||
BE42.60-B-1001-01A | Pressure regulator | Opening pressure - Wabco/Knorr | bar | 9,8 ... 10,2 |
Closing pressure - Wabco/Knorr | bar | 8,7 ... 9,3 | ||
Service pressure - Wabco/Knorr | bar | 13 | ||
Opening pressure of safety valve - Wabco/Knorr | bar | 14,5 ... 17,0 | ||
Tires filling safety valve opening pressure - Wabco | bar | - | ||
Admissible leakage - Wabco/Knorr | bar (menor ou igual cm3) | 10 | ||
Pressure on the test stand feeding circuit - Wabco/Knorr | bar | 15 | ||
Pressure applied to the port 1 for leak test - Wabco/Knorr | bar | 10 | ||
Pressure applied on the port 21 for leak test - Wabco/Knorr | bar | 10 |
1 | Shim the wheels and release the parking brake, if required to lift the vehicle, do it through the shaft until the wheels are free. |
Danger! If the vehicle is loaded, the jack should be placed on the axle end, under the spring pack, then shimming it with suitable stands. |
2 | Control wear through indicating washer (6) arrow which, upon reaching the reference point (5), indicates that the pad (2) thickness reached maximum wear limit (3) or through the inspection hole (1), thus requiring to be replaced. . |
The parking brake should not be actuated on the rear axle wheels. |
3 | If pads (2) need to be separated (for example, when removing the drum), the loose the screw (7). . To rotate the screw (7) a little effort will be required and a characteristic noise of the ratchet can be heard. . |
Check pads (2) for wear. |
Vehicles fitted with automatic brake shoe adjuster need no periodic adjustments. |
B42.15-0004-03
4 | To measure the plunger rod stroke (8), the pneumatic reservoirs must be filled with the work pressure. . |
5 | The free stroke of the plunger rod (8) can be measured with a regular measuring tape (A) and corresponds to the lever displacement between the released and fully applied brake positions. |
6 | If the free stroke of the plunger rod (8) is not within the specified values, perform function check and check automatic adjuster installation. |
Measure |
B42.15-0005-01