NOTE : Concerning Dia. column, the values given in fraction are in inches, the other values are in mm.
The tightening torque values given in lbf.in have been rounded off.
For some tightening torques (marked with an asterisk) a specific tightening process is required - refer to Paragraph C.
For attachments provided with a castellated nut and a pin, tighten to the indicated tightening torque then loosen, if necessary, to introduce the pin.
ABAA
Validity : S / N 1 - 9999 20-00-01Page 205
(BA) SEP 04
Tightening torques
Figure 201
ABAA
Validity : S / N 1 - 9999 20-00-01Page 206
(BA) JUN 02
ABAA
Validity : S / N 1 - 9999 20-00-01 (BA) Page 207
JUN 02
ABAA
Validity : S / N 1 - 9999 Page 208
20-00-01 (BA) SEP 04
ABAA
Validity : S / N 1 - 9999 20-00-O1Page 209
(BA) SEP 04
Tightening torques
Figure 205
ABAA
Validity : S / N 1 - 9999 20 00-01Page 210
(BA) JUN 02
C. Tightening processes - specific cases (Figures 207, 208, 209, 210, 211 and 212)
1) Wing splicing - refer to Figure 207, Detail A
Tightening in 3 steps :
a) 1st step : pneumatic or hand-screwing machine in numerical order from Item 1 to Item 44.
b) 2nd step : torque wrenches 1st tightening in numerical order from Item 13 to Item 28, from
Item 29 to Item 44, then from Item 1 to Item 12.
c) 3rd step : torque wrenches 2nd tightening in the same order as for the 2nd step.
2) Spacer attachment on wing spar - refer to Figure 208, Detail A
a) Diagonal tightening as per item numerical order.
b) Repeat the operation.
3) Forward fitting attachment on wing small spar - refer to Figure 208, Detail B
a) Tightening as per item numerical order.
b) Repeat the operation.
I 4) Wing attachment on fuselage - Attaching bolt at frame C2 - refer to Figure 208, Detail C
a) Double tightening.
• 5) Attachment of frame C1 lower sections on lower cross beam - refer to Figure 208, Detail D
a) Tightening as per item numerical order.
b) Repeat the operation.
6) Vertical stabilizer attachment on rear fuselage, at frame C8 - refer to Figure 209, Detail A
a) Tightening as per item numerical order.
g 7) Attachment of engine mount and nose gear mount on firewall - refer to Figure 209, Detail B
a) Tightening as per item numerical order.
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本文鏈接地址：TB20 MAINTENANCE MANUAL 20 STANDARD PRACTICES AIRFRAME TB20飛機維護手冊 20 標準施工機體(11)
