Disassembly Of Spindle Housing Assembly; Cleaning, Inspection And Repair Of Tail Gear Spindle Housing Assembly; Installation - Thrush Aircraft S2R–T660 Maintenance Manual

E. Inspect spindle housing assembly welds for cracks.
F. Inspect spindle housing assembly for cracks and corrosion.
G. Inspect lock pin and upper and lower lock plates for wear, corrosion, cracks, and proper operation.
H. Inspect centering springs for corrosion, wear at ends, and for correct operation.
I. Inspect lock pin flexible cable and spring for corrosion and correct operation.
J. Inspect P/N95207-1 Acetal (Delrin®) lower support block spacer for wear and cracks.
K. Inspect upper and lower leaf spring support blocks for wear, corrosion, and cracks.
L. Repair of the tail landing gear is limited to replacement of component parts, bearings, bushings,
smoothing out minor nicks and scratches, repainting chipped or peeled areas.
DISASSEMBLY OF SPINDLE HOUSING ASSEMBLY (Refer to fig. 6-1)
A. If desired, remove bolts, nuts and washers that bolt tail wheel fork to spindle.
B. Remove bolts, nuts, and washers that bolt centering arm to top of spindle and remove centering arm.
Note orientation for proper reassembly.
C. Remove red plastic cap plug (dustcover).
D. Remove cotter pin, castellated nut, tongue washer, grease cup washer, and cone bearing.
E. Remove spindle assembly and thrust washer from spindle housing. Do not remove upper bearing cup or
bottom bronze bushing unless replacement is indicated by inspection.

CLEANING, INSPECTION AND REPAIR OF TAIL GEAR SPINDLE HOUSING ASSEMBLY.

A. Clean all parts with a suitable type cleaning solvent.
B. Inspect all bolts, bearings and bushings for excessive wear, corrosion and damage.
C. Inspect spindle assembly for cracks, excessive wear, corrosion and damage.
D. Inspect spindle housing for cracks, excessive wear, corrosion and damage.
E. Inspect lock pin lower plate and lock pin top plate assembly for cracks, corrosion and damage.
F. Repair of tail gear sub-assembly is limited to reconditioning of parts such as replacing bearings and
bushings, smoothing out minor nicks and scratches, repainting chipped or peeled areas and replacement
of component parts.
INSTALLATION (Refer to fig. 6-1 & 1a)
The tail gear may be installed by reversing the removal procedures. Ensure that leaf spring support blocks grips
the leaf spring lightly to allow slight movement of the spring fwd. and aft. (Add or subtract P/N 90056-26
washers/spacers (.063") between upper and lower support blocks to achieve a light grip of leaf spring after bolts
are properly torqued.) All bolts shanks and bolt holes are to be coated with Snap-on™ General Purpose
Antiseize lubricant or equivalent before installation. Lubricate all bearings, bushings, and Zerk (grease) fittings
with MIL-G-81322 (Aeroshell 22) grease. Torque all hardware in accordance with TORQUE CHART (figure 2-7)
with the exception of the top spindle castellated nut and wheel/tire axle castellated nut, which should be torqued
as follows:
Effective: 01/10/05
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL
R1
6-4