6 -12
Effective: 12/17/03
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
E.
Slide back plates between brake disc and wheel/tire and install back plate attachment
bolts and washers into back plates.
F.
Torque brake assembly back plate tie bolts to 60 inch/pounds. Two different types of back
plate tie bolts are used. The patch lock bolt (nylon material embedded in threaded end) will
required replacement 6 to 8 installations or whenever the bolts can be run in past the
locking feature by use of fingers only. Bolts with drilled heads require safety wire after
torquing.
BRAKE LINING CONDITIONING PROCEDURES
When new linings have been installed, it is important to condition them properly to obtain the
service life designated into them.
T660 THRUSH METALLIC LININGS
A.
Perform two (2) consecutive full stop braking applications from 35 to 40 mph (30 to 35
knots). Do not allow the brake discs to cool substantially between the stops.
B.
Allow the brakes to cool for 10 – 15 minutes.
C.
Apply brakes and check for restraint at high static throttle. If brakes hold, conditioning is
complete.
D.
If brakes cannot hold aircraft during static run-up, allow brakes to completely cool, and
repeat steps 1 through 3.
*** WARNING ***
Due to the efficiency of these brakes, extremely hard braking on aircraft
with tail wheels could result in lifting the tail from the ground, creating a
nose over condition.
*** WARNING ***
Use extreme caution to prevent aircraft from nosing over when running
engine at high static throttle (power lever) settings, hopper and fuel
system should be full to help keep aircraft from nosing over.
Summary of Contents for S2R-T660
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