4) 4) EMERGENCY RELEASE OF THE PARKING BRAKE EMERGENCY RELEASE OF THE PARKING BRAKE In the event of a failure in pressure supply the parking brake can be released mechanically in the following way : G 2 1 S 5 7609A4BS23 1 Lock nut 2 Setting screw 5 Screw cap S Peg spanner G Ring spanner Secure the machine against rolling away. Rotate the screw cap (5) in a counter-clockwise direction and unscrew it. Release the lock nut (1) and unscrew it back to the end of the setting screw (2). Rotate the setting screw (2) in a clockwise direction until the brake disc is completely free.
(1) (2) (3) (4) ц For emergency release a torque of min 7.1 For emergency release a torque of min 7.1 kgf·m kgf·m (51.6 (51.6 lbf·ft lbf·ft ) is required on the setting screw ) is required on the setting screw (2). (2). (5) Screw on the lock nut (1) up to contact with the piston and apply a slight locking force to the setting screw (2). Screw on the screw cap (5) in a clockwise direction by a few threads. (dirt ingress protection) (6) In this condition the machine has no parking brake facility and thus must be protected from In this condition the machine has no parking brake facility and thus must be protected from rolling away by different means.
The brake must be adjusted before recommissioning. rolling away by different means. The brake must be adjusted before recommissioning. ц 4-27