Maintenance, repair and care work
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Cirrus 3/4/6000 DB2034 08.04
10.4.3 Hydraulic part of the service brake system
10.4.3.1 Checking the brake fluid – monthly or after every 50 hours of operation
Check the brake fluid level in the in the equaliser tank
(Fig. 242).
The equaliser tank is filled with brake fluid according to
DOT 4 up to the "max." mark.
The brake liquid should not drop below the "min."-mark.
Important
When a loss of brake fluid is noted, go
to see a professional workshop.
Fig. 242
10.4.3.2 Maintenance of the hydraulic part of the brake system (workshop job)
• Retighten the wheel bolts after the first 10 hours of operation or after any wheel
change by using a torque spanner.
- Torque of the wheel bolts: 350 Nm
- Torque of the hub without brake drum: 400 Nm
- Torque of the hub with brake drum: 500 Nm
• Replace the brake fluid every 1 – 2 years.
• Annually check all flexible brake hoses for wear, all brake tubings for damage and
the bolted joints for tightness. Replace worn or damaged parts.
• Every 500 hours of operation, however before starting the season, check the
brake lining.
This maintenance interval is just a recommendation. Depending on the use, e.g.
when constantly driving in the mountains, this interval should be reduced if neces-
sary.
Renew the brake shoe when the lining is less than 1.5 mm (only use original
brake shoes with approved brake linings). If necessary, also the brake show draw
back spring should be replaced.