Bailey Moyes 912 Dragonfly Maintenance Manual Download

Page: 36 / 191

Page

Section 7

Maintenance & Inspection

Dragonfly 582/912

FWD WHEEL, THROTTLE & BRAKE

Note: Hydraulic Brakes see Appendix B

STEP

INSTRUCTIONS

for Assembly, for Disassembly reverse the order!

PART NO.

STAGE

CERT.

Wheel halves are not symmetrical.

Take

front wheel rim 8020

and using a 5/16" drill bit, drill out mounting holes for

brake drum.

Bolt hex head 5/16” x 18 TPI x 1 1/4”,

brake drum, front wheel rim 8020, nut 5/16” x 18TPI.

Very tight.

DFI 012
DFI 014
DFT 007

Take

front wheel rim 8021

and push

front tube

and

front tire

onto it as far as possible, lining up valve with notch. Line up wheel halves with 5/16" bolts and push front wheel
rim 8020 as far into tyre as possible. You may use a screw driver or similar tool inserted in gap between halves
to help push tyre into place. (You will only be able to push tyre approx. 1/2" onto rim). Put inner tube around
one side of rim out of the way. If inner tube becomes pinched between wheel halves, it will leak. Bolt hex head
5/16” x 18 TPI x 1 1/4”, front wheel rim 8021, front wheel rim 8020, nut 5/16" x 18 TPI.

Very tight. Inflate.

(Flat

tyres are difficult to remove from rim. Working your way gradually around and around the tire seems to work
best).

Do not take it to a tyre store they will break the rim

DFI 013
DFS 003
DFS 004

Bolt AN3-13A, 3/16" washer,

or DFN 003 ¾ when equipped w/DC brakes

gear elbow

(AN4-14A & 1/4” nut and washers, when equipped with Dual Calliper Brakes and ¾” Axle ), axle front,

gear elbow, 3/16” washer, AN3 half nut.

Tight. Must not bottom out on threads

DFN 003
DFN 001

See App.
B for Hyd
Brakes

100 hr

Bolt AN4-5A

, manual

brake assembly,

gear elbow, 1/4" washer, AN4 half nut.

Very tight.

(Make one left and one right).

DFW 023

Using a 1/4" drill bit, drill hole in brake assembly through gear elbow. Bolt AN4-5A, brake assembly, gear
elbow, 1/4" washer, AN4 half nut.

Very tight.

Bolt AN4-5A, brake assembly,

Manual

brake cable anchor brkt,

1/4" washer, AN4 half nut.

Very tight.

Align brkt parallel to gear elbow.

DFJ 010

Bolt AN3-15A, 3/16" washer, gear leg,

gear elbow, gear leg, 3/16" washer, AN3 half nut.

Very tight.

(AN4-15A & 1/4” nut and washers as needed, when equipped with Dual Calliper Brakes and ¾” Axle ),

Stars in brake arms are asymmetrical. Find proper positioning on brake assembly by flipping arm until it is just
below bolt

5. Bolt AN4-5A, 1/4" washer, brake arm, brake cable tang, 1/4” washer, AN4 mini high temp nut.

Very tight.

Remove one nut from brake cable. Slide cable into brake cable anchor brkt. Replace nut and adjust when
assembly is complete.

Nut 5/16" x 18 TPI, brake arm, brake assembly,

Very tight.

Slide

spacer brake plate 20mm x 3mm x 1.4”

and wheel onto axle,

nut 5/8” UNF locknut.

Tight.

DFB 009
DFT 021

Bolt AN3-21A, 3/16" washer, cockpit tube lower left, brake cable.

Tight.

Bolt AN3-26, 3/16" washer,

throttle lever fwd,

spacer throttle lever 7mm

throttle lever fwd, washer 3/16" x 1”,

saddle 1.75”,

cockpit tube lower left, 3/16" washer, AN3 castle nut, cotter pin.

Tight. Adjust torque after engine is installed.

DFI 009
DFM 002
DFP 032

Bolt AN3-14, 3/16" washer, throttle cable, 3/16" washer, throttle lever fwd,

brake pivot,

throttle lever fwd, 3/16" washer, AN3 castle nut, cotter pin.

Snug but free.

DFK 005

Bolt AN3-7, 3/16" washer,

brake lever,

brake pivot, brake lever, 3/16" washer, AN3 castle nut, cotter pin.

Snug but free.

DFK 015

Bolt AN3-7, brake lever,

spacer throttle lever 7mm, brake cable, brake lever, 3/16" washer, AN3 castle nut,

cotter pin.

Snug but free.

Bolt AN3-7, 3/16” washer, throttle lever fwd, aft throttle cable, throttle lever fwd, 3/16” washer, AN3 castle nut,
cotter pin.

Snug but free.

Knob brake,

threaded rod 10/32 TPI x 1 1/4", brake lever, spacer throttle lever 7mm, brake lever, brake knob.

Tight.

DFP 016

Knob throttle,

threaded rod 10/32 TPI x 1 1/4", throttle lever fwd, spacer throttle lever 7mm, throttle lever fwd, knob throttle.

Tight.

DFP 015

(1)

Recommended Special Tools:

None

(2)

The parts needed to perform the task:

Replace worn/damaged parts as needed, listed above. Max. Wear (defined 1.1.8.1)

(3)

Type of maintenance:

Inspection=Line & Replacement=Heavy

(when it involves replacement of structural components.)

(4)

Certification needed to accomplish the task:

Line=LSRI Inspection or above, Heavy=LSRM Maintenance or above.

see:

3 Level of Certification in this manual

(5)

Detailed instructions and diagrams as needed to perform the task, listed above and adjacent page.

Every Annual or 100 Hrs., Inspect for Cracks, Corrosion, Elongation of holes & Fasteners for Wear & Security.

Check Brake Shoe Retainer Pin to insure it is not getting loose Every 100 Hrs.

Important: See

Warning, in last part of Hydraulic Brakes Appendix B of this manual.

(6)

Method to test/inspect to verify the task was accomplished properly.

Insure that all procedures were followed correctly

and there is proper non-binding movement to moving parts and that fasteners were tightened as instructed. When flight
controls are involved, assure that they are operating properly.

Section 7 Fwd Wheel Throttle & Manual Brake

Section 7