MAULE Orion M-7-260C Maintenance Manual page 12

NOTE: Any binding which causes bending of the turnbuckles should be removed. Any cable attach-
ment parts, which display appreciable corrosion, must be replaced before further flight.
CAUTION - Before flight whenever elevator cables are reconnected or new cables installed: Always
check operation of elevators after a cable reconnect by pulling back on the control wheel and ascer-
tain that the elevators are in the UP position.
NOTE: Pivot points must be cleaned and lubricated with any lightweight lubricating oil. Following lu-
brication, the cable attachments, including the turnbuckles, must be heavily coated with a good pre-
servative such as:
NOTE: Larger stainless steel turnbuckles and corrosion resistant steel fasteners for the elevator ca-
bles are approved and recommended for airplanes operating in a potentially corrosive environment.
CAUTION: Special attention should be given to the horizontal stabilizer lower strut attach stub tubes
which are welded to the lower longerons. The seal on the inside of the strut attach stub tubes can de-
teriorate with age which could cause corrosion on the interior of the attach stub tubes, especially on
floatplane models. It is recommended that the stabilizer struts be removed to inspect attach stub
tubes at each Annual. If there is visible external corrosion around the attach stub tubes, or the inter-
nal seal appears loose or cracked, remove the seal, clean the inside of the tube and visually inspect
the inside for corrosion. If corrosion is found, repair in accordance with AC 43.13-1B. After repair, or
if no corrosion is found, fill entire tube with silicone rubber to seal tube from moisture. Inspect the
struts for dents, corrosion, or punctures and replace if necessary. Reinstall struts with new hardware
and document in aircraft records.
NOTE: Double struts, available through Maule, are recommended for floatplanes and banner and
glider towing planes.
14. Lubricate all chains and points of rotation on sprockets, pulleys and bellcranks.
15. Inspect and lubricate all control surface hinges and control horn connections.
16. Lubricate door hinges and latches and seat tracks.
CAUTION: Carefully inspect all door hinge bolts and nuts for condition and security. If using elastic
nuts on door hinges, they must be replaced with castle nuts and cotter pins. Refer to Maule Service
Letter No. 61.
17. Lubricate rudder pedals and rudder bar points of rotation.
18. Check control rigging and cable tensions.
19. Check and clean vacuum system regulator valve filter and intake filter.
20. Check the pitot static system for leaks.
21. Inspect the following components of the ME406/406HM ELT:
a. (ELT unit and mount) for proper installation and insecure mounting.
b. Wiring and conduits – for improper routing, insecure mounting, and obvi-
ous defects.
c. Bonding and shielding – for improper installation and poor condition.
Rev. C
MAULE AEROSPACE TECHNOLOGY, INC.
MAINTENANCE MANUAL
M-7-260C
FOR
Black Bear Paralketone Preventa-
tive/Black Bear Co./Long Island
City, NY. (preferred)
LPS 3, Heavy Duty Rust Inhibi-
tor/LPS Laboratories, Inc./Tucker,
GA
12/37
MECH INSP