C42 Owner’s Manual (Microlight) Page 30
Brakes
T
he control stick carries a brake lever with an integrated master cylinder. Hydraulic lines carry
pressure to a small disc brake on each of the main wheels. The brakes work together.
On systems fitted with the Beringer brake modification a pressure limiting device is incorporated
in the system between the brake handle and the brake callipers.
General maintenance to ensure good brake performance
• The engine idle speed must not be higher than 1750 rpm. To avoid a continual fast taxy
situation experiment lowering the idle speed to about 1600 rpm. This will remove the need to
constantly apply the brakes when taxying.
• If operating from a hard runway it is inevitable that the brakes will be worked much harder
than if operating from a grass runway. When taxying avoid constantly holding pressure on
the brake lever, this accelerates brake pad wear. Apply the brakes periodically , say every 5
seconds instead.
• For the Beringer brake modification consult the Beringer Maintenance Manual appended to
this Owner’s Handbook.
• Jack up each main wheel and spin the wheel checking the brake disc runs centrally
between the brake pads. If the brake disc runs biased over to one side then when the
brakes are applied, contact performance with the two pads will be lost and the brakes
become less efficient. To centralise the brake disc loosen the brake caliper bolts and insert
shims between the caliper and the mounting bracket until the brake disc is centralised.
• The brake pads do not have a very thick lining even from new so do not be fooled into
thinking a set of part worn pads are ready for replacement.
• Keeping the brake lever pressure quite high ensures good brake performance. The
adjustment plunger on top of the brake fluid cylinder needs to be screwed down
periodically to maintain the pressure in the system.
• As the brakes slowly wear and the adjustment plunger is screwed down to its lowest point it
becomes necessary to top up the brake fluid level.
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