Item name | Spare part number | Description |
1 | Pull ring | |
2 | Quick connector | |
3 | Parking brake control unit | |
4 | Sealing collar | |
5 | Spring | |
6 | Internal rope | |
7 | Union | |
8 | Drive pulley |
The emergency release cable allows you to mechanically release the parking brake in the following cases:
- The parking brake cannot be released electrically due to a system fault.
- The battery is disconnected or the battery voltage drops below 7.5 V with the parking brake applied, causing the parking brake to not be electrically released.
The mechanical release of the parking brake is carried out by disconnecting the force sensor from the splined shaft in the parking brake control unit. In the normal state, the force transducer and the spline shaft are connected by a lever-actuated fuse at the end of the spline shaft that engages with the sleeve on the force transducer.
The emergency release cable is a Bowden cable installed between the parking brake control unit and the center console. The emergency release cable is held in clips on the underside of the vehicle and passes into the passenger compartment under the center console through an opening in the transmission tunnel. The hole for the emergency release cable is sealed with a quick coupling. On the outer side of the housing of the parking brake control unit, a sealing collar is tightly fitted.
In the center console, a pull ring is attached to the end of the inner cable. The pull ring allows it to be hooked onto the end of the jack handle, which, along with a screwdriver, can be used to pull the cable.
The force required to release the latch is approximately 200 N. When the parking brake cable ring is released, the spring in the parking brake control unit retracts the inner cable and the fitting is retracted from the safety lever.
After the parking brake is released using the emergency release cable, the next time the parking brake switch is turned on, the parking brake control unit will automatically engage the detent to reconnect the spline shaft with the load cell. The parking brake control unit rotates the splined shaft so that it moves towards the force sensor. The splined shaft retainer is then reattached to the force sensor sleeve. Reactivation of the parking brake switch is required to apply the parking brake.
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