THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
Effective: 05/05/04
6-21
PROBLEM PROBABLE CAUSE
REMEDY
Dragging brakes
(continued)
Restriction in hydraulic
lines or restriction in
parking brake valve.
Have someone apply
and then release
brakes. Wheel should
rotate freely as soon as
brake is released. If
wheel fails to rotate
freely, loosen brake line
at brake housing to
relieve any pressure
trapped in line. If wheel
now turns freely, the
brake line is restricted.
Drain all brake lines and
clear the inside of brake
line. If cleaning the lines
fails to give satisfactory
results, the parking
brake valve may be
faulty and should be
repaired.
Worn, scored or warped
brake disc (see Fig. 6-2
and 6-3).
Visually check disc.
Replace brake disc and
lining if required.
Damage or accumulated
dirt restricting free
movement of wheel
brake parts.
Check parts for freedom
of movement. Clean
and repair or replace
parts as necessary.
Leak in system.
Check entire hydraulic
system for leaks. If
hydraulic reservoir,
parking brake valve, or
wheel brake assemblies
are leaking, they must
be repaired or replaced.
Brakes are spongy or
fail to operate.
Air in system.
Bleed system.
Lack of fluid in brakes.
Check hydraulic
reservoir fluid level. Fill
and bleed if necessary.
Brake assemblies’
defective.
Repair or replace as
required.
