Torque Requirements; Flare Fitting Torques - Piper PA-44-180 SEMINOLE Maintenance Manual

TORQUE REQUIREMENTS.

The torque values given in Chart 9102 are derived from oil-free cadmium-plated threads and are recommended
for all airframe installation procedures where torqueing is required, unless otherwise noted in sections where
other values are stipulated. Propeller torque values are found in Chapter 61 of this manual. Chart 9101 lists the
torque values for flared fittings of various sizes and material.
When flared fittings are being installed, ascertain that the male threads are properly
lubricated. Torque the fittings in accordance with Chart 9101.
TUBING ALUMINUM - ALLOY
OD TUBING FLARE - AND
INCHES 10061 OR AND 10078
MINIMUM
1/8
3 16
1/4
5/16
3/8
1/2
5/8
3/4
1
1 - 1/4
1 - 1/2
1 - 3/4
2
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
— CAUTION —
DO NOT OVERTORQUE FITTINGS
CHART 9101. FLARE FITTING TORQUES
TORQUE—INCH-POUNDS
MAXIMUM
— — — —
— — — —
40 65
60 80
75 125
150 250
200 350
300 500
500 700
600 900
600 900
— — — —
— — — —
— Note —
STEEL TUBING
FLARE
AND 10061
MINIMUM MAXIMUM MINIMUM
— — — —
90 100
135 150
180 200
270 300
450 500
650 700
900 1000
1200 1400
— — — —
— — — —
— — — —
— — — —
4A20
HOSE END FITTING
AND
HOSE ASSEMBLIES
MAXIMUM
— — — —
70 100
70 120
85 180
100 250
210 420
300 480
500 850
700 1150
— — — —
— — — —
— — — —
— — — —
9 1 - 0 1 - 0 0
Page 91-01
Revised: May 15, 1989