Cleaning, maintenance and repairs
12.8.1
Inspection instructions for the dual circuit service brake system
1. Leak tightness check
1. Check all connections, pipe lines, hose lines and screw connec-
tions for leak tightness.
2. Remedy any leaks.
3. Repair any areas of chafing on pipes and hoses.
4. Replace porous and defective hoses.
5. The dual-circuit service brake system may be considered
leakproof if the drop in pressure is no more than 0.15 bar after
10 minutes.
6. Seal any leaking areas or replace leaking valves.
2. Checking the pressure in the air reservoir
Connect a pressure gauge to the test connection on the air reservoir.
→
Set value 6.0 to 8.1
+ 0.2
bar
3. Checking the brake cylinder pressure
Connect a pressure gauge to the test connection on the brake cylin-
der.
→
Set value: with brake not applied 0.0 bar
If an ALB regulator is installed, the values are checked in line with the
information on the Haldex ALB plate.
4. Visual inspection of the brake cylinder
1. Check the dust sleeves or gaiters for damage.
2. Replace damaged parts.
5. Joints on brake valves, brake cylinders and brake linkages
Joints on brake valves, brake cylinders and brake linkages must move
freely. Grease or lightly oil, if necessary.
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B
BAG0003.18 01.19
Summary of Contents for ZG-B 5500 Drive
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