AP42.80-G-4263B | Automatic load-dependent brake - check play and adjustment | 16.8.11 |
MODEL 405.050 /100 /101 /120 /121
MODEL 405.102 /122 ## up to 197879
with 3-channel ABS
G42.80-3108-11
Exemplified
1 ALB plate
G42.80-3114-01
G42.80-3135-01
G42.80-3137-01
Model 405.100/120
2 Test connection (brake pressure uncontrolled, upstream of load/no-load valve)
3 Test connection (brake pressure uncontrolled, upstream of ALB)
Model 405.050/100/101/120/121
3 Test connection (brake pressure uncontrolled, upstream of ALB)
Model 405.050/101/121
2 Test connection (brake pressure uncontrolled, upstream of load/no-load valve)
3 Test connection (brake pressure uncontrolled, upstream of ALB)
G42.80-3109-01
Model 405.100/120
4 Test connection (brake pressure regulated, rear axle)
5 Test connection (brake pressure controlled, left front axle)
6 Test connection (brake pressure controlled, right front axle)
G42.80-3136-01
Model 405.101/121
4 Test connection (brake pressure regulated, rear axle)
5 Test connection (brake pressure controlled, left front axle)
6 Test connection (brake pressure controlled, right front axle)
G42.80-3110-01
G42.80-3111-01
G42.80-3112-01
Model 405.102/122 up to VIN end no. 197879
7 Test connection (brake pressure regulated, rear axle)
Model 405.102/122 up to VIN end no. 197879
9 Test connection (brake pressure controlled, right front axle)
Model 405.102/122 up to VIN end no. 197879
8 Test connection (brake pressure controlled, left front axle)
G42.80-3113-11
10 Control linkage
11 Actuating lever
12 Clamping bolt
13 Shaft
| Check | ||
1 | Determine rear axle load of vehicle in ready-to-drive condition by weighing | Test scale | |
2 | Note down test values specified on ALB plate (1) | The ALB plate (1) is located on the inside of the left door. | |
3 | Check that control linkage (10) and operating lever (11) can move easily and that joints are play-free | ||
4 | Check length of control linkage (10) and operating lever (11) | If the lengths differ from those specified, adjust the length of the control linkage (10) and operating lever (11); for details, refer to the ALB plate (1). | |
5 | Connect pressure gauge test connections (2, 3) | ||
6.1 | Connect pressure gauge to test connections (4, 5, 6) | Model 405.050/100/101/120/121 | |
The test connections (4, 5, 6) on model 405.100/120 are located in the brake component compartment. On model 405.050/101/121 they are next to the battery box. | |||
6.2 | Connect pressure gauge to test connections (7, 8, 9) | Model 405.102/122 up to VIN end no. 197879 | |
The test connections (8, 9) are located in the front left and right wheel well. | |||
7 | Pressurize compressed-air system up to cutoff pressure | Before fully depressing the brake pedal each time, the compressed-air system must be filled until the shutoff pressure is reached. | |
8 | Fully depress brake pedal | The pressure gauge of the controlled circuit must come to a standstill within the specified pressure range. Permissible values are given in the ALB setting diagram on the ALB plate (1). A deviation of 0.4 bar is permissible. If the pressure deviates significantly, adjust the ALB controller (subject to separate repair order): | |
Check/adjust automatic load-dependent brake (ALB) | |||
9 | Detach pressure gauge | ||
10 | Check brake system for leaks and proper function |
Test balance
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