MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
FOR M-5-220C
Rev. B 20/38
Set-up for Installation of Rudder Cables:
Lock rudder to vertical stabilizer using a C-Clamp and two (2) padded wood blocks. Es-
tablish the rudder “Neutral Position” by measuring (and holding) a distance of 6” between the
backside of the rudder pedal(s) to the face of the interior firewall. Note: Make sure the interior
(firewall) insulation and (firewall) vinyl covering/upholstery is adequately compressed during
this initial set-up phase. A wooden spacer of the appropriate length (a 2x4 wooden block
works fine) is ideal to hold the given distance during the rudder-rigging process. Install rudder
cables and related-hardware.
Check the rudder travel for 21° ±1° right and left. Rudder cable tension is controlled by
springs, and the cables should not be slack with the rudder centered. Rudder trim may be ac-
complished by adjusting the tension of the rudder centering springs located behind the rear
bulkhead. Keep springs as short as possible but never less than 4 ½ inches from end coil to
end coil with the rudder centered.
Elevator control movements are up 25° ±2°, down 21° ±1°. Stops are located on the verti-
cal tail rear spar just inside the inspection plate. Proper cable tension is 25 to 45 lbs.
CAUTION - BEFORE FLIGHT whenever elevator cables are reconnected or new cables in-
stalled: Always check operation of elevators after a cable reconnect by pulling back on the
control wheel and ascertain that the elevators are in the UP position.
Elevator trim tab (without piano hinge) movement is 12° ± 4° up, 29° ± 2° down. Elevator
trim tab (with piano hinge) 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.
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
cables 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.
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.
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