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Aircraft Service Manual
Jabiru Aircraft
Pty Ltd
JTM001-1
J120, J160, J170, J200/J400, J230/J430, J250/J450 Variants
REVISION
1
Dated: Nov 2011
Issued By: SW
Page: 111 of 233
8.25 TROUBLE SHOOTING - BRAKES
Table 12
– Trouble Shooting – Brakes
Trouble
Probable Cause
Remedy
Dragging brakes
Brake handle binding
Check and adjust
Worn or broken master cylinder
piston return spring
Repair or install new master
cylinder
Restriction in hydraulic lines or in
master cylinder
Drain brake line, clear with
compressed air. If cleaning lines
fails, the master cylinder may be
faulty and should be repaired or
replaced.
Brake callipers not aligned with
disc
Check and adjust
Brakes fail to operate
Leak in system
If master cylinder or wheel
cylinders are leaking, repair or
install new parts.
Air in system
Bleed system
Lack of fluid in master cylinder
Fill and bleed system
Master cylinder defective
Repair or install new parts
Brake pads worn
Replace with new parts
Figure 74
– Dual Calliper Brake Assy (Quick Change Pads)