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Fliegl ULW - Maintenance of the Compressed Air Brake System

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ULW transfer trailer
Service and maintenance
Fliegl Agrartechnik GmbH, 84453 Mühldorf am Inn, Germany
66 of 85
10.4.6 Maintenance of the compressed air brake system
Draining water from the air reservoir:
Every day, the water must be drained from the
compressed air reservoir by pulling on the ring on
the underside.
Fig. 67: Reservoir
Line air filter
The two filter housings (1) contain sieve inserts (3). If the filter inserts in the line air filters are clogged,
air flows around them without being filtered. As a result, there is no filter protection for downstream
attachments, meaning that the filter inserts must be cleaned at regular intervals.
1. Before opening the filter housing, depressurise the pipes.
2. To clean the sieve filter (3), remove the locking tab (8).
Be aware of the back-pressure from the cap (7).
3. If necessary, rinse the sieve filter with benzine and blow it out.
Always replace damaged sieve inserts and O-rings.
Individual parts of the line air filter see Fig.
1) Filter housing
2) Compression spring
3) Sieve insert
4) Spring plate
5) Compression spring
6) O-ring
7) Cap
8) Locking tab
Fig. 68: Individual parts of line filter
Brake cylinder
Check the brake cylinder. Only up to 2/3 of the brake cylinder stroke should be used.
If this is exceeded, the brake system must be re-adjusted or repaired by a specialist brake workshop.
Mechanical ALB regulation
ALB = automatic load-dependent brake force regulation.
The setting length is specified on the ALB plate.
This setting must not be changed.
Fig. 69: Setting length on ALB regulator and ALB plate on the vehicle

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