Mooney M20V - Page 234

MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
9
MAR 2017
Rev Date
(a) Trim screw jackshaft.
(b) Trim link connecting empennage to trim
screw.
(c) Bolts and brackets attaching empennage
to tailcone.
4. Rudder Torque Tube Removal. The rudder torque
tube should be inspected thoroughly and replaced if
any damage is found. Remove shield from front of cab-
in floorboard that covers torque tube. Remove attach-
ing hardware from hinges and rudder pedal control
rods. Carefully remove torque tube by sliding out to-
ward right side of cabin and through cabin door.
-NOTE-
Control tube wear allowables. If any portion of
the control tube exceeds .007” inch wear per wall
or .014 inch reduction in diameter, the tube must
be replaced.
FWD
9
ELEVATOR HORN ADJUSTMENT
FIGURE 27−9
27-30-00 − ELEVATOR SYSTEM
Elevator construction is essentially the same as that of
the ailerons. Both elevators attach to the stabilizer at
four hinge points. Push−pull tubes and bellcranks link
the elevators to the control yoke. Lead counterweights
static balance the elevators (Refer to Section 27−91
−00 Control Surface Static Balancing). A lead bob
−weight under the instrument panel refines aircraft
handling in flight.
1. Elevator Removal and Installation.
A. Remove push−pull control tube by taking off all
attaching bolts, nuts and washer.
B. Remove bolts, nuts and washers from the four
attaching hinges.
C. Remove elevator to the rear.
D. Install elevators in reverse sequence of remov-
al. Recheck attaching hardware for security and safety.
Set elevators, RH/LH, to be level with horizontal stabi-
lizer. Adjust rod end bearings (9) (Fig 27−9) at elevator
horns.
2. Elevator Rigging and Adjustment.
B
ELEVATOR TRIM ADJUSTMENT
FIGURE 27−10
-NOTE-
Measure elevator travel from 0 degrees stabilizer
thrust line with travel board positioned at stabi-
lizer station 16.00 as indicated on travel board,
P/N GSE 030004−503, and with stabilizer at 0 de-
grees. (See Fig. 27−3 and Fig. 27−10 for travel
board placement.
A. Adjust rod end bearing (3), (Fig. 27−1), at con-
trol yoke (G) for control shaft (H) clearance from firewall
and control yoke and bob−weight clearance from fuse-
lage structure.
B. Level aircraft and set control column in neutral
with stabilizer parallel to center line of aircraft.
C. Adjust rod end bearings of control tube (L) (Fig.
27−5), at rear tailcone bulkhead out approx. 5 turns to
start.
D. Adjust elevator horn rod end (9) (LH & RH), (Fig.
27−9) out 7 to 8 turns to start.
E. Main spar, adjustable rod end bearing is turned
out approx. 6 turns to start. To obtain additional elevator
travel, adjust as required.
F. Set stops (P), (Fig. 27−7), in empennage stinger
for elevator uptravel of 22
o
(+0/−2) and downtravel of
22
o
(+0/−2).
G. After stops (P) & (M) are set, rotate elevators
through full range of travel to assure positive contact
with stops (P) & (M), and that nuts and bolt heads clear
stop limiters (R). Stop limiters (R) may be bent to obtain
proper clearances and contact with elevator stops (P),
(Fig. 27−7).
H. Rotate stabilizer trim full down to check clear-
ance of bellcrank at wing rear spar. Adjust rod end bear-
27-30-00