Bailey Moyes 912 Dragonfly Maintenance Manual Download

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1.1.8.1 Wear Tolerances of Cable, Bolt or Fastener and Hole Elongation.

Bolts and Fastener Wear:  Maximum 10%
Example: ¼” 0.25 * 0.9 = 0.225’  as the thinnest part of bolt or ¼” fastener.

Hole Elongation:  Maximum of 15%
Example: ¼” 0.25 * 1.15 = 0.2875 Maximum in longest direction of hole.
Example for feeler gauge while bolt is in hole: ¼” 0.25 * 0.15 = 0.0375 wire should not fit between bolt and
edge of hole. (Between .032” and .041” Safety Wire sizes.)

Cables, Thimbles and Tangs
Any significant wear of Thimbles, fraying of cables, loose or broken strands, corrosion of cables or NICO Press
Sleeves, deformation of Tangs, REQUIRE RPLACEMENT with new OEM Cable Assemblies. Be aware of and
learn about “Hydrogen Embrittlement” and how hard it is to detect the amount of damage that it can cause.
When you can see corrosion on Nico Press Sleeves, the stainless cables have been affected but don’t show signs
as well as the Tin plated Copper sleeves.  WHEN IN DOUBT, REPLACE WITH NEW.

“Lubricate”defined

Dry Film Lubricant that will not leave any sticky residue that will hold

dust, dirt or sand, that will prematurely wear out parts.
i.e. Super Lube, Dri Film Lubricant by,Synco Chemical Corp. www.super-lube.com

NOTE: DO NOT LUBRICATE until after painting fabric surfaces of the sails etc. Silicones can
prevent paints from sticking

1.1.9 General safety information,

Always use proper PPE (Personal Protective Equipment) and Work Safety Practices suitable for
the work you are performing. Information on this can be found in the OSHA Regulations
and/or the Occupational Health Authority in your State.

1.1.10 Instructions for reporting possible “Safety of Flight” concerns found during Inspection or
Maintenance.

NOTE—

See Appendix A in the back of this manual & in the beginning of the POH (Pilot Operating Handbook)

behind the Table of Contents.

1.1.11 Standard Tools—

needed for the maintenance and repair of the aircraft and it’s components.

Wrenches, sockets & Allen wrenches in both SAE and Metric are needed, Hammers, Safety Wire Pliers, needle
nose and square pliers, screw drivers in both straight and Phillips, chisels, punches, feeler gauge sets in both
inch and metric, Calibrated Torque Wrenches, hacksaw, Hot Knife or soldering gun with flat tip, heat gun
(hotter than hair dryer), and other tools commonly found in a mechanics tools box.

1.1.12

Special Tools—

needed for the maintenance and repair of the aircraft and it’s components.

Note: Rotax has numerous Special Tools for engine Repair and Maintenance. These can be purchased from most
Rotax Parts Distributors as needed.

All of the guidance for Inspection, Repair and Overhaul of Engines and

Gearboxes are deferred to the Engine Manufacturer.

Overhaul of engines and it components can only be performed

by a Rotax Authorized Service Centre. Refer to Rotax manuals and Website for current information regarding
overhaul, repairs and alterations.

1)

Batten Tool -- Used to push battens most of the way under Rear Spare. Can use a screwdriver if your very careful

not to scratch the tube or tear the sail. This tool can be Rented or Purchased through Pitman Air.

1.2 Inspections

—Annual and/or 100 hour Inspections

Note: Engine, Gearbox, Propeller, and Instruments may require periodic or specialized inspection/maintenance and
intervals. Refer to the component manufacturer’s manual(s) for this information. i.e. Rotax www.flyrotax.com

1.2.1 Checklist for Annual & 100 hour Inspections:

How to perform an Annual and/or 100 Hour Inspection:

Go through all Sections of

2.2 Detailed Instructions and Diagrams for Inspection and/or Repair

of this

manual. (cont’d next page)