THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
WHEEL AND BRAKE TROUBLESHOOTING
Table 6-1 is provided as a convenient means of investigating problems encountered with
the landing gear or brakes.
TABLE 6-1: WHEEL AND BRAKE TROUBLESHOOTING CHART
TROUBLE PROBABLE
CAUSE
REMEDY
Worn or loose wheel
bearings.
Jack tail, remove wheel and inspect
bearings. Replace with new lubricated
bearing if necessary.
Tail wheel
shimmy.
Tire imbalance.
Jack tail and remove tire for balance check.
Rebalance.
Incorrect tire pressure.
Pressure check tire. Inflate to
recommended pressure.
Excessive/un
even tire
wear.
Tail gear sub-assembly
bearings worn or loose.
Jack tail; remove tail gear sub-assembly.
Repair or replace as required.
Lock cable out of
adjustment or broken.
Adjust or replace as required.
Tail wheel
fails to lock or
unlock.
Lock pin or lock pin spring
broken or damaged.
Repair or replace as required.
Tire imbalance.
Jack aircraft and remove tire for balance
check. Rebalance.
Main landing
gear shimmy.
Worn or loose wheel
bearings.
Jack aircraft and check wheels for end
play. Replace with new lubricated bearings
if necessary.
Dragging
brakes.
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.
Effective: 01/01/08
6-19
