MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
FOR
MXT-7-160
Rev. E
20/39
9. ELEVATOR TRIM:
Elevator trim tab movement is 12
°
±
2
°
up, 38
°
±
2
°
down. If adjustment is needed, it may
be done at the turnbuckles located just aft of the trim control. Proper cable tension is 15 to 25
lbs.
10. RUDDER TAB:
This tab is interconnected with the aileron system to automatically coordinate aileron and
rudder controls for simplified handling in the air. (It may be used as a rudder trim tab to make
the airplane trim in cruise.) This tab may be adjusted by changing to the position of the tab ca-
bles where they attach to the aileron cables located just over the front doors on the inside of
the airplane.
Normally, the tab should be streamlined with the rudder when the aileron and
rudder controls are centered using the centering spring for rigging adjustments (See 7 above).
The tab travel is 48
°
±
4
°
right or left. Proper cable tension is 5 to 10 lbs.
CAUTION: Make sure tab is free at extreme aileron travel.
NOTE: The “Rudder Trim Control” on the instrument panel pulls on a spring attached to the
right rudder pedal. It is not connected to the tab on the rudder.
11.
NOSEWHEEL:
Steps for adjustment of nosewheel.
Using a string of adequate strength, tie one end of string around the LH nosewheel axle
end, routing the string around the front of the nosewheel only (excludes the nosewheel
forks), and continue to route the string on the RH side of the aircraft, bringing the string be-
neath and over the backside of the RH horizontal stabilizer lower strut attachment and tying
off (after pulling the string “taut” (tight).
Center nosewheel, using the “taut” string as an alignment guide. Next, adjust the
threaded rod end of the nosewheel control centering spring cartridge.
Insure shimmy damper (attached to the steering arm) is in a “neutral” position. Nose-
wheel should now “center” with the centerline of the aircraft. Proceed to check for proper
nosewheel travel. (Note: Stop bolts positioned @ steering arm are factory pre-set, and nor-
mally do not need adjustment). Travel of nosewheel turned to the right of center should
equal approx. (16 ½) degrees. Travel of nosewheel turned to the left of center should equal
approx. (14) degrees.
Center rudder with the vertical stabilizer, and center nosewheel with the centerline of the
aircraft. Proceed to adjust the (spring-loaded) connecting rod which attaches to both the
rudder pedal(s) and the nosewheel steering arm. Note: Adjust both threaded ends of con-
necting rod approx. 8-10 turns each from the “stop” position or “bottomed-out” position.
Note: Both rudder and nosewheel must remain in the “neutral” position to achieve the
proper adjustment.
Following the above step, insure ALL locknuts are “locked-down”.
