THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
material at the lining friction surface.
Normal brake usage should generate
enough heat to maintain the glaze
throughout the life of the lining.
Properly conditioned linings will provide
many hours of maintenance free service.
A visual inspection of the brake disc will
indicate the lining condition. A smooth
surface, one without grooves, indicates
the linings are properly glazed. If the
disc is rough (grooved), the linings must
be re-glazed. The conditioning
procedure should be performed
whenever the rough disc condition is
observed. Light use, such as in taxiing,
will cause the glaze to be worn rapidly.
BRAKE REASSEMBLY AND
INSTALLATION
A. Install friction spring on piston
assembly (if removed).
B. Lubricate large O-ring with MIL-H-
5606 hydraulic fluid and install in
groove in brake housing bore area.
C. Install piston assembly in brake
housing.
*NOTE*
Be sure piston is clean and
burr free. Coat the outer
surface with MIL-H-5606
hydraulic fluid.
D. Install pressure plate assembly on
anchor bolts.
E. Install brake assembly to torque
plate.
F. Install back plate assemblies with
bolts and washers. Torque bolts to
60 inch-pounds.
Figure 6-5: Brake Master Cylinder
Effective: 01/01/08
6-11
