Bailey Moyes 912 Dragonfly, Руководство по обслуживанию

Страница: 24 / 191

Page 23
Section 1 Boom Tube
Section 1
Section 1
Maintenance & Inspection
Pitman Air
BOOM TUBE
Assemble the internal and external parts in the following manner. Take care that each bolt that passes through the 5” boom or
fuselage tube also passes through an internal tube or sleeve, so that the boom tube will not be squeezed out of round when bolts
are tensioned.
An internal steel truss is fitted centrally. The release cable should be fitted now if the Dragonfly is to have a tow system.
Take care that it remains in the position that it is fitted.
STEP INSTRUCTIONS for Assembly, for Disassembly reverse the order! PART NO. STAGE CERT.
1
Bolt AN4-21A, 1/4" washer, tail plate mount block,
boom tube truss assembly,
tail plate load tube.
Very tight.
DFP 014
DFW 041
DFC 024
2 Bolt AN4-56A through aft root supp brkt lower 912,
saddle aft root supp brkt 912,
boom tube, 1/4" washer, AN4 full nut. Very tight.
DFO-047
DFP 019
3 Bolt AN4-65A through aft root supp brkt lower 582 / aft root supp brkt lower 912, saddle
aft root supp brkt 582 / saddle aft root supp brkt 912, boom tube,
spacer main boom-wire .875” x .75” x .25”,
tang three hole,
AN4 full nut. Very tight.
DFP 026
DFO 032
4
100 hr
Two bolt AN3-6A through 3/16" washer in each of two push rod guide,
boom tube. Very tight Maximum 0.090” space around Push Rod..
Note:
Apply dry lube to pushrod where it passes through guide every 100 hrs or Annual
DFP 005
5
100 hr
Eye bolt AN42 - 4A
through boom tube. Flat end of eye bolt is at right angle with boom tube when tight.
Tight.
DFT 201
6 Replacement Insructions release cable
Using old cable to pull new cable through, tape the new release cable to the old cable
and pull through. Bring the aft end of the release through the 1/2” hole to align with the
release boom.
DFQ 010
(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: LSRI Inspection 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.
#4 Pushrod Guides, maximum of 0.090 slop, use 0.040 safety wire on each side as feeler gauge.
#5 Check for loose Rivnuts. Repair as needed by using 10-32 Rivnut or Threaded Insert tool to tighten or replace.
#4 Apply dry lube to pushrod where it passes through guide every 100 hrs or Annual
(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.