The Maule MT-7 was designed and built to give you the airplane you have always wanted. It is fast, comfortable, and easy to fly, yet no light airplane is safer than the Maule MT-7. Its sturdy construction means you will not have to pamper it to enjoy long years of trouble-free service.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 TABLE OF CONTENTS ITEM PAGE Cover………………………………………………………… Foreword..............…... Warranty....…..........….… Table of Contents…............Log of Revisions….............….. SECTION I - GENERAL DATA General Description............….. Design Specification...........….. Fluid Capacities and Specification......…. SECTION II - GENERAL MAINTENANCE Cleaning and Care of Aircraft......…..….
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 LOG OF REVISIONS Rev. Description Date page(s) Added Log of revision page iii. 3, 4 Added special maintenance procedures for floatplanes based in coastal areas or an otherwise corrosive atmos- 07/19/99 phere. Revised the inspection procedure concerning the horizontal stabilizer strut lower attach stub tubes.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 SECTION I GENERAL DATA GENERAL DESCRIPTION: Type: Five place high wing cabin monoplane. Engine Installation: Single tractor engine in nose of fuselage. Wing: Strut braced, two spar, metal covered, modified USA 35-B airfoil. Fi- berglass wing tips.
Salt water and chemicals act as an electrolyte between dissimilar metals and can start a strong corrosive action over a short period of time. Maule makes every effort to sepa- rate dissimilar metals with primers and coatings during manufacture, but there are some loca- tions (such as rivets in wing skins) where this is impossible.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 INTERIOR (Cont’d) Textile upholstery may be cleaned using a vacuum cleaner. Grease and oil spots on the upholstery should be treated with a spot remover or dry cleaning fluid. Do not use soap and wa- ter on textile materials.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 INSPECTION GUIDES At 25 Hour Total Time, perform 50 Hour Inspection as described below: At 50 Hour Total Time and every 50 hours thereafter: A. POWER PLANT MECH INSP 1. Perform appropriate inspection as called for in the Textron Lycoming Operator's Manual, p/n 60297-9, Initial Revision or later.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 7. Check nosewheel landing gear oleo strut for indication of oil leaks. See Section III for service instructions. MECH INSP 8. Check general condition of nosewheel, steering linkage, scissors and shimmy damper. Check main landing gear for condition and brakes for leakage and wear.
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CAUTION: Item (a)(4) of AD#98-15-18 is very misleading as Maule never drills holes in struts to at- tach cuffs, door clips or any hardware and it is illegal to do so since there are no approved holes in the wing struts under the TC data.
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NOTE: Check top side of rear elevator horn and cable and bottom side of forward elevator horn and cable if yellow color-coding paint is visible. If missing, paint per Maule Service Bulletin No. 30. 13. CAUTION: At inspection hole in tail, visually check the pivoting action at the control cable attachment points over the full range of rudder and elevator travel.
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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.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 PERIODIC MAINTENANCE FOR ME406/406HM ELT FOR THE US In the United States, minimum maintenance requirements for ELTs are stated in FAR 91.207 para- graph (d): (d) Each emergency locator transmitter required by paragraph (a) of this section must be inspected...
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 ELT Battery replacement: If replacing the battery pack, order replacement kit 455-0012 which contains the battery pack (452-6499), replacement gasket, hardware and labels. A spare label showing the expiration date is included in the replacement kit. This label should be mounted in the same location as the former expiration date label.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 PROCEDURE: Place each of the wheels on a scale with the airplane in approximate level flight atti- tude. Place a level on the leveling mark and leveling lug on the bottom of the right wing near the root.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 RIGGING PROCEDURES 1. LEVELING: Laterally: The airplane can be accurately leveled laterally using the front spar attach bolts. Turn these two bolts so that a flat on the head is "up". Fabricate two equal length spacers (1½...
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 5. AILERONS: Adjust the ailerons to streamline position by placing a straight edge on the bottom of the wing chordwise at the inboard end of the aileron. Then adjust the turnbuckles in the aileron system so the control wheels are centered and there is a gap of zero to ¼...
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 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.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 FABRIC REPAIRS: (Applicable to Polyurethane paint on Ceconite fabric only) REPAIRS: Small holes and damaged areas can easily be repaired without removing the existing paint topcoat. Trim the damaged area to a rectangular or circular shape.
The aft fuselage section is covered with Ceconite fabric and standard dope and paint finish as per Maule Specification S-17. Later models are finished with polyurethane or acrylic urethane paint in accordance with Maule Specifications S-40 or S-41, respectively. This fabric need not be pulled or punch tested.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 MOVABLE SURFACES AND CONTROL AILERONS AND FLAPS: The ailerons and flaps are aluminum alloy structures covered with 2024-T3. The aileron control system consists of a chain drive connecting the two control wheels and is attached to the necessary cables which are routed over pulleys through the fuselage and into the wing section to the aileron horns.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 LANDING GEAR, WHEELS AND BRAKES MAIN LANDING GEAR: The main landing gear consists of separate left and right side heat-treated (7075-T651) alu- minum spring legs, which are bolted to a square tube truss in the bottom of the fuselage struc- ture.
18. Reinstall brake calipers and hubcap. BRAKE CYLINDERS: The hydraulic brakes are actuated by two (2) master cylinders, Maule P/N 4046B, on the left side, and two (2) slave cylinders on the right side. Check hydraulic oil level in master brake cylinders, proper level is no closer than ¼ inch to top of cylinder.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 With rudder pedals in neutral position, set cable housing to 2 ¼” dimension as shown on drawing below. Pull the parking brake knob out until the nicopress comes in contact with the cable housing.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 Lack of fluid in reservoir Air will enter system if the reservoir runs dry. In- spect at regular intervals and keep reservoir full at all times. Vent plug stopped up If vent hole in reservoir plug becomes stopped,...
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 Installation of the nosewheel is the opposite of removal. Tighten the 5/16 inch elastic stop nuts until the wheel bearings just begin to bind, then back off until the bearings are just free.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 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 gen- eral condition of the mount. At regular intervals, the attaching bolts at the engine should be checked for tightness (required torque value of 37.5-41.5 ft.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 FUEL SYSTEM Two (2), 23.8 gallon (or 21.5-gallon) main fuel tanks, mounted in the inboard end of the wings, have front and rear outlets. The fuel lines running from these tanks terminate at the fuel selector valve on the left side kick panel.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 This battery is considered fully charged at a hydrometer specific gravity reading of 1.265. A low charge would be 1.225 or lower. Operating with a low charge will shorten the life of the battery and can be prevented by recharging or operating with the electrical equipment turned off until the battery has been sufficiently recharged.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 for s/n 18001C-18041C, 18044C, 18046C-18048C. The wire numbering system has been designed to ease Electrical Schematic tracing a faulty wire. The circuit tracing code is as shown below in the schematic. Wires are plainly labeled near each end.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 for s/n 18042C, 18043C, 18045C, 18049C & up) The wire numbering system has been designed to ease trac- Electrical Schematic ing a faulty wire. The circuit tracing code is as shown below in the schematic. Wires are plainly labeled near each end.
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 Electrical Schematic The wire numbering system has been designed to ease tracing a faulty wire. The cir- (28 Volt) cuit tracing code is as shown below in the schematic. Wires are plainly labeled near each end.
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MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 Old Style Door Latch Assembly (New improved Door Latch Assemblies are now available and are being installed in present production. Order Part No. 1395X for new improved Door Latch Assembly) 36/37 Rev. D...
MAULE AEROSPACE TECHNOLOGY, INC. MAINTENANCE MANUAL MT-7-235 Airworthiness Limitations Section The airframe does not have mandatory life limits or overhaul requirements. See Textron Ly- coming Operator's Manual, p/n 60297-9, Initial Revision or later and the Hartzell Owner’s Manual and Logbook, p/n 7998-115N, Revision 14 or later or McCauley Owner’s Manual, p/n MPC-11, Initial Revision or later for the constant speed prop for their airworthiness limitations.
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