AP42.80-W-4263A | Automatic load-dependent brake - check play and adjustment | 1.10.08 |
MODEL 374.523 /551 /651
MODEL 375.351 /4, 940.20, 944
with CODE (ID2) Rear axle air suspension
except CODE (JW5) Telligent maintenance system
MODEL 950.03 /04 /2 /5 /6, 952.2, 954.03 /04 /2 /5, 957.38 /5 /6
with CODE (ID2) Rear axle air suspension
except CODE (BB8) Brake control (BS) with ASR
MODEL 970.2, 974 with CODE (ID2) Rear axle air suspension
| Checking | ||
| Only carry out test when vehicle is unloaded and ready to drive. | ||
1 | Compare the number of the brake valve with the specifications on the plate of the automatic load-dependent brake pressure control (ALB plate) in the vehicle | The setting of the automatic load-sensitive proportioning valve (ALB) is checked according to the bellows pressure. | |
2 | Connect test kit | ||
| Connect test kit | Model 374, 375.3/4, 940.20, 944, 950, 952, 954, 957 | |
Model 970, 974 with code (B02) Brake system, antilock brake system (ABS) | |||
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3 | Increase pressure of compressed-air system to operating pressure | Operating pressure min. 9 bar. | |
| Fill compressed-air reservoir with air from external source | Model 374, 375.3/4, 940.20, 944, 950, 952, 954, 957 | |
Model 970, 974 | |||
4 | Check zero-load adjustment | ||
| Zero-load test | ||
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5 | Check half-load setting | ||
| Half-load test | ||
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6 | Check full-load setting | ||
| Full-load test | ||
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7 | Compare the measured values with the values on ALB plate | If the values specified on the ALB plate are not reached: Replace automatic load-sensitive proportioning valve (ALB) - subject to separate repair order. |
360 589 00 21 00
Test kit