THRUSH S2R – G10 Maintenance Manual page 116

AIRCRAFT MAINTENANCE MANUAL
TABLE 6-1: WHEEL AND BRAKE TROUBLE SHOOTING CHART (page 2 of 2)
TROUBLE
Restriction in hydraulic
lines or restriction in
parking brake valve.
Parking brake valve
Dragging
holding.
brakes.
Worn, scored or warped
brake disc (see Fig. 6-3).
Damage or accumulated
dirt restricting free
movement of wheel brake
parts.
Leak in system.
Effective: 03/26/2010
THRUSH AIRCRAFT, INC – MODEL S2R-G10
PROBABLE CAUSE REMEDY
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.
lines fails to give satisfactory results, the
parking brake valve may be faulty and
should be repaired.
Check parking brake valve.
parking brake valve.
Visually check disc.
and lining if required.
Check parts for freedom of movement.
Clean and repair or replace parts as
necessary.
Check entire hydraulic system for leaks. If
hydraulic reservoir, parking brake valve, or
wheel brake assemblies are leaking, they
must be repaired or replaced.
If cleaning the
Release
Replace brake disc
6-19
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