Thrush Aircraft S2R-R1340 Maintenance Manual page 146

THRUSH AIRCRAFT, INC – MODEL S2R-R1340
Table 6-1: Wheel and Brake Trouble Shooting Chart (page 2 of 2)
TROUBLE
Parking brake valve
holding.
Worn, scored or warped
brake disc (see Fig. 6-3).
Dragging
Damage or accumulated
brakes.
dirt restricting free
(Continued) movement of wheel brake
parts.
Leak in system.
Air in system.
Brakes are
Lack of fluid in brakes.
spongy or fail
to operate.
Brake assemblies'
defective.
6-20
AIRCRAFT MAINTENANCE MANUAL
PROBABLE CAUSE REMEDY
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.
Bleed system.
Check hydraulic reservoir fluid level.
and bleed if necessary.
Repair or replace as required.
Release
Replace brake disc
Fill
Effective: 01/01/08