NOTE : Concerning Dia. column, the values given in fraction are in inches, the other values are in mm.
The tightening torque values given in Ibf.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 203
(BA) SEP 04
Item Attachment designation Bolt Torques
in N.m Torques
in lbf.in
Dia. Pitch
124 Engine / engine mount 7/16 21 to 33 186 to 292
125 Unions on directional gyro and / or "AID" horizon 2.8 Max.
2.2 Max. 25 Max.
20 Max.
Unions on directional gyro and / or "SIGMATEK" horizon
126 Exhaust adapters / power plant 5/16 18 to 20 160 to 177
127 Slinger ring / rear side plate 3.4 to 4.5 30 to 40
128 * Rear side plate and propeller jet /
three-bladed propeller hub 3/8 27 to 30 239 to 265
129 * Three-bladed propeller / power plant 83 to 97 735 to 858
130 Engine pump / power plant 3/8 25.4 to 28.2 225 to 250
131 Strainer union / injection pump 6.7 to 7.9 60 to 70
132 * Injection pump / power plant 23 204
151 Nose landing gear / landing gear mount 12 1.50 37 327
152 Connecting lever / nose landing mount 10 1.50 Fully tightened by hand
and pinned
153 * Engine mount / firewall 8 1.25 11 97
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