THRUSH AIRCRAFT, INC – MODEL S2RHG-T65 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
Effective: 5/25/05
6-13
REMOVAL OF LININGS FROM CALIPERS
A.
Remove backing plate attaching bolts and washers, and remove back plates and
insulator shim.
B.
Carefully slide brake caliper out of torque plate bushing.
C.
Slide pressure plate assembly (lining carrier) off anchor bolts.
REPLACEMENT OF ORGANIC LININGS
A.
Old organic linings may be removed by using a small drift pin or carefully drilling
out the rivets with a 1/8-inch diameter drill. Use care to prevent elongating the
rivet holes. Deburr the surface adjacent to the lining to allow lining to set flush.
B.
Clean pressure plate and back plate surfaces of dirt, grease, etc. before installing
new linings.
C.
Inspect pressure plate and back plate for excessive corrosion, visible damage, or
excessive warping. Straighten pressure plate too less than 0.010 inch
(0.254mm) flatness.
D.
Align new factory authorized replacement lining segments on pressure plate/back
plates and install P/N 105-0200 rivets, using Cleveland’s rivet set, P/N 199-1, or
appropriate riveting tool.
E.
Check to be sure lining is tight and movement free with no distortion of parts.
F.
With tubular rivets, splits may result from the clinching operation. Refer to rivet
sketch (figure 6-4) for acceptance criteria.
REASSEMBLY OF ORGANIC LININGS TO CALIPER
A. Carefully
wipe
dirt,
grease, etc. from cylinder, pressure plate, and portions of
piston extending beyond cylinder face, and push piston back into cylinder.
B.
Slide pressure plate with new lining over anchor bolts and install brake caliper
into torque plate. For equipment that is operated in an amphibious environment,
or in extremely wet climates, lubricate the anchor bolt with Lubriplate. For
equipment used in a non-amphibious environment, or in extremely wet climates,
lubricate the anchor bolt with a dry film lubricant (silicon spray). DO NOT USE
GREASE OR OIL. These materials will attract dirt enhance the wear of the
anchor pins.
C.
Install back plate attachment bolts and washers in brake caliper.
D.
Install insulator shims (typically used with metallic lining) and spacers as
applicable.
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.
