MAINTENANCE SECTION 5
Page 23
DRESSTA OM560C99/1E
BRAKES
Fig. 5.15. Parking Brake
1 - Hydraulic Cylinder
2 - Worm Slack Adjuster
3 - Brake Shoes
4 - Brake Disc
EMERGENCY RELEASING OF THE BRAKE
If the parking brake is required to be released in emergency with pressure loss in hydraulic system
perform the following steps:
1. Undo warm slack adjuster 2 until hydraulic cylinder spring 1 tension is completely removed.
2. Make sure a proper gap is between brake shoes (3) and brake disc (4).
NOTE: After emergency releasing of the brake, perform re-adjustment of parking brake as follows.
PARKING BRAKE ADJUSTEMENT
Adjustment of the parking brake is possible with the engine running and brake system operative
only.,
1. Start and operate the engine at low idle to fill the nitrogen accumulators and warm the hydraulic
system oil.
2. Release the brake with the switch located on the instrument panel.
3. With the parking brake released set the worm slack adjuster so as to obtain a total gap of 0.5 to
0.75 mm between the brake disc and brake shoe. Take the measurement in mid position of
brake lining “A” as shown in Fig. 5.15. after placing the brake head in the utmost position in the
direction shown by the arrow, Fig. 5.15.
NOTE: No not exceed specified values as jamming of the brake shoes may occur and accelerated
wear of brake linings.
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