Eagle ICA-D212-725, Instructions Manual

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ICA-D212-725 (05)
Page 15 of 25
CHAPTER 05 – INSPECTION AND COMPONENT OVERHAUL SCHEDULE (05-00-00)
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COPYRIGHT

2007 BY DART AEROSPACE LTD.
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THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO
ANY OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision: 4
Date: 11.06.01
5.9 3100 HOURS OF COMPONENT OPERATION
Data Reference
Inspection Task Description
Initial
Mech Other
NOTE
This inspection applies to 205-040-250-ALL clutches
installed in 212-040-001-059/-137 and subsequent
transmissions
5.9.1 MAIN TRANSMISSION 212-040-001-059/-137
AND SUB
5.9.1.1 Disassemble transmission sufficiently to remove
the main input driven gear quill 204-040-362 in accordance
with BHT-212-CR&O Manual.
5.9.1.2 Remove gear support case and debris collector
to gain access to spiral bevel retaining bolts.
5.9.1.2.1 Using torque wrench, check each of the 32 bevel
gear retaining bolts 214-040-117-005 for minimum torque of
300 inch-pounds (34.125 Nm).
NOTE
Torque check is accomplished with increasing torque, not
break away or loosening torque.
5.9.1.2.2 If torque value of any one retaining bolt is less
than 300 inch-pounds (34.125Nm), remove bevel gear and
inspect mating surface of gear 204-040-701-101 and shaft
204-040-324-005 for fretting damage.
5.9.1.2.3 The maximum acceptable depth of pitting is
0.0005 inch (0.0127 mm). Depth may be measured by using
a dial indicator with a needle pointed probe. Pitting of
measurable depth is acceptable only in the area on the gear
or shaft surface outside the diameter of the bolt holes, and is
not acceptable within 0.100 (2.54 mm) of the edge of a bolt
hole. Damage in excess of these limits is cause for rejection
of part.
5.9.1.3 Inspect upper flange surface and pilot diameter
of the ring gear 205-040-231, and mating surfaces of top
case 212-040-059 for fretting and wear. Check limits in BHT-
212-CR&O Manual.