Rigging - Electric Trim Assist - Cessna T182 Series Service Manual

MODEL 182 & T182 SERIES SERVICE MANUAL
29 30
19. Screw
20. Rub Strip
20
25
21. Cover Assembly
19*
24
22. Shaft Assembly
23
24.
Washer
25. Spring Washer
-
26. Washer Assembly
27. Chain
28.
Sprocket
29.
Shaft
41
30. Washer
32 31
31. Mounting Plate Assembly 40
32. Housing
33. Cover
^ 33
35. Mounting Plate
36.
Motor
38
37.
Pin
38.
Chain
39.
Bushing
40. Sprocket
NOTE
41. Clutch Assembly
\ 34
41. Clutch35 ASafety
wire thest items.
36
Detail
D
Figure 9-4. Electric Trim Installation (Sheet 2 of 2)
NOTE
k. Repeat step i verly slowly while watching indica-
tor on spring scale. Slippage should occur between
Step c isolates the motor assembly from
29. 1 and 32. 9 pounds.
the remainder of the electric trim system
1. If tension is not within tolerance, loosen OUT-
so it cannot be engaged during clutch ad-
SIDE spanner nut (23) which acts as a lock.
justment.
m. Tighten INSIDE spanner nut to increase clutch
tension and loosen nut to decrease clutch tension.
e. Remove screws securing covers (20) and (21) to
n.
When clutch tension is within tolerance. tighten
housing (32) and slide the cover down over electrical
outside spanner nut against inside nut.
wiring far enough to expose the clutch assembly.
o. Connect electrical wiring removed in step 3.
f.
Ensure the electric trim circuit breaker on the
and reinstall drive assembly in aircraft.
pedestal cover is pushed in and place master switch
p. Rerig trim system in accordance with paragraph
in ON position.
9-24 and reinstall all items removed for access.
g. Place disengage switch (15) in ON position.
h. Operate pitch trim switch (16) UP or DOWN to
9-24. RIGGING - ELECTRIC TRIM ASSIST. (See
energize the solenoid clutch (41).
figure 9-4.)
i. Attach a spring scale to drive chain and slowly
a. The standard manual elevator trim system MUST
pull scale till clutch slippage occurs.
be rigged in accordance with paragraph 9-18 before
rigging electric trim assist.
NOTE
b. Move elevator trim tab to full "NOSE UP" posi-
tion.
During step i, attach scale to drive chain (38)
c. Locate NAS228 terminal of turnbuckle (9) at a
so that sprocket rotates clockwise as viewed
point 0. 75 inch from drive assembly housing.
from the drive end to ensure proper clutch
d. Adjust AN155 barrel until chain deflection be-
adjustment.
tween sprockets is approximately 0. 25 inch.
i. Resafety turnbuckle and reinstall all items re-
j. Repeat steps h and i several times to break ini-
moved for access.
tial friction of clutch.
9-11