Power Plant System - MAULE Jetasen M-4 Maintenance Manual

4. Inflate the tire to approximately 45 psi.
The power plant system consists of the engine, engine mount, propeller, cowl, engine
controls, exhaust, air intake system, and fuel system.
ENGINE:
Engine instructions covering the care and operation are covered in the engine manufac-
turer's Operator's Manual.
ENGINE MOUNT:
The engine mount is a welded structure of chrome molybdenum steel (4130) tubing.
The engine is attached to the mount by means of four point suspension to four (4) mounting
pads on the engine case. Each leg attachment incorporates a shock mount designed to ab-
sorb torsional fluctuation and vibrations of the engine. The engine mount assembly is bolted
at the firewall to the fuselage structure by means of four (4) 3/8" attaching bolts, (requiring a
torque of 13.3-15.8 ft. lbs.) which should be checked for tightness periodically.
An extremely close visual inspection of the engine mount should be made to periodically
check for cracks, dents, weld failures, etc., of the mount tubular members as well as the
general condition of the rubber mounts. At regular intervals, the attaching bolts at the engine
should be checked for tightness (required torque value of 37.5-41.5 ft. lb.) The rubber en-
gine mounts should be carefully inspected and replaced if necessary at each 100 hour in-
spection. Excessive engine vibration at various RPM ranges should also prompt their in-
spection. Care should be exercised to prevent the rubber mount's contact with oil as this
may result in their premature deterioration. CAUTION: When torquing any engine or mount
bolts, precaution should be taken against any over-tightening, as this also may cause early
failure.
PROPELLER:
The propeller manufacturer's Installation, Operation and Service manual contains infor-
mation on the proper use and care of the propeller.
COWLING AND BAFFLING:
The cowling consists of a four (4) section top, two (2) side doors and bottom. Most ser-
vicing may be done by removing only the bottom section and by working through the two side
doors.
A periodic inspection of the cowling should be made checking for cracks, chafing, securi-
ty of attachment, etc.
Baffling should be checked for security and the rubber sealing extensions should be
checked for wear and security. When the cowl is installed, these sealing extensions should
lay up, forward or inboard, and provide a good seal against the cowl.
Rev. B
4/13/16
MAULE AIRCRAFT CORPORATION
MAINTENANCE MANUAL
M-4/C/S/T
FOR

POWER PLANT SYSTEM

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