Tail Gear Rigging; Tail Wheel Removal And Disassembly; To Remove And Disassemble Tail Wheel/Tire, Proceed As Follows - Thrush Aircraft S2R–T660 Maintenance Manual

A. For spindle castellated nut: While manually rotating spindle, torque spindle castellated nut to 20 inch-
pounds, continue rotating spindle and back off to zero inch-pounds. While manually rotating spindle,
torque nut to 10 inch pounds. If not in locking position, advance nut to next position, not to exceed 30º,
and install cotter pin. Bend ends of cotter pin around spindle castellated nut. Note: Spindle must rotate
freely without perceptible play.
B. For tail wheel axle castellated nut: While manually rotating wheel/tire, torque axle castellated nut to 80
inch-pounds, continue rotating wheel and back off to zero inch-pounds. While manually rotating wheel/tire,
torque to 30 to 40-inch pounds. Rotate axle castellated nut (clockwise or counterclockwise) to nearest slot
and cotter pin hole, and insert cotter pin. Bend ends of cotter pin around axle nut. Note: Wheel/tire must
rotate freely without perceptible play.
C. Carefully lower aircraft to ground and remove Jack.
D. Recheck tire inflation pressure (6.00-6 8pr is 55psi) and install dust cover (hubcap).

TAIL GEAR RIGGING

Rigging will be required if lock cable or elevator travel stops have been altered in any way. Rig as follows:
A. Place elevator in a 17 (+1) degrees down position.
B. Connect lock cable to pivot arm.
C. Assure lock pin is flush with bottom of lock pin cylinder when making final adjustment to lock cable turn
barrel.
D. Adjust top plate as required to assure straightforward travel of aircraft tail wheel when tail gear is locked.
TO REMOVE AND DISASSEMBLE TAIL WHEEL/TIRE, PROCEED AS FOLLOWS: (Refer to Fig. 6-1)
A. Using a suitable Jack. Jack and secure tail of aircraft, using provided jackpoint.
B. Remover dustcover (hubcap) and deflate tire by depressing the schrader valve stem plunger until air can
no longer be heard escaping from the tire.
C. Remove schrader valve core.
D. Remove cotter pin and axle castellated nut. Rock wheel/tire slightly, then remove wheel/tire assembly
from axle, and be sure to capture the two- (2) P/N95435-11 spacers, located on each side of wheel
assembly.
E. From each side of wheel; carefully remove snap ring, felt grease seal retainer, felt grease seal, grease
seal ring and cone bearing. Store the cone bearings. Label the bearings for reinstallation into position from
which it was removed.
F. With the tire completely deflated, removing the wheel through-bolts will separate the wheel halves. Pull
the wheel halves from the tire by removing the wheel half opposite the valve stem first. Mark wheel
halves to note relationship to each other for reassembly.
6 -5
THRUSH AIRCRAFT INC - T660 TURBO THRUSH
AIRCRAFT MAINTENANCE MANUAL

TAIL WHEEL REMOVAL AND DISASSEMBLY

Effective: 01/10/05
R1
R1