D42.20-1111-06
1 Brake lever
2 Locking pin
3 Pin
4 Washer
5 Split pin
6 Clevis
7 Boot
8 Spring brake cylinder
9 Nuts
A Adjustment dimension
B Version 1 (Model Series 668.3, 670.3)
C Version 2 (Model Series 668.3, 670.3, 905.6)
| Checking | ||
1 | Unlock and remove pin (3) | Parking brake released with a minimum pressure of 6.4 to 7.0 bar in the spring chambers. | |
Installation: Use new cotter pin (5). | |||
2 | Lock brake lever (1) with locking pin (2) | When the brake lever (1) is guided into the brake caliper the parking brake adjustment mechanism must be reset. | |
3 | Measure adjustment dimension (A) | Measure from panel on end face of spring actuator bowl to center of hole in clevis. | |
Model 668.3, 670.3 | |||
Type 905.6 | |||
Adjust | |||
4 | Operate parking brake | ||
5 | Push boot (7) inwards | ||
6 | Slacken nuts (9) | ||
7 | Release parking brake | ||
8 | Set adjustment dimension (A) | Turn forked head (6) until you obtain dimension (A). | |
Model 668.3, 670.3 | |||
Type 905.6 | |||
9 | Operate parking brake | ||
10 | Lock nuts (9) | ||
11 | Install in the reverse order |
Test and adjustment values for service brake
Number | Designation | Models | Models | |
BE42.20-N-1001-01C | Adjustment dimension (A) for push rod on spring brake cylinder with brake off and 6.4 to 7.0 bar pressure in spring actuator | mm | 137 (+2) | 137 (+2) |
See picture | ||||
Test and adjustment values for parking brake