Piper Arrow IV Turbo Maintenance Manual page 697

7. Unless otherwise specified, parts used on Lycoming engines with Piper furnished or existing
Lycoming threaded fasteners, shall be torqued to the specifications listed in the latest revision of Lycoming
Service Table of Limits No. SSP-1776.
8. After the final torque is applied, the fastener should be permanently marked red and should not be
further tightened or disturbed.
For more details on torquing, refer to FAA Manual AC43.13-1A.
When flared fittings are being installed, ascertain that the male
threads are properly lubricated. Torque the fittings in accordance
with Chart 9101.
FLARE FITTING TORQUES.
TUBING ALUMINUM - ALLOY
OD TUBING FLARE - AND
INCHES 10061 OR AND 10078
MINIMUM
1/8
3/16
1/4
5/16
3/8
1/2 150
5/8 200
3/4 300
1 500
1- 1/4 600
1- 1/2 600
1-3/4
2
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
—CAUTION—
Do not overtorque fittings.
CHART 9101. FLARE FITTING TORQUES
TORQUE—INCH-POUND
MAXIMUM MINIMUM
— —
— —
40 65
60 80
75 125
250
350
500
700
900
900
— —
— —
—NOTE—
—NOTE—
STEEL TUBING
FLARE
AND 10061
MAXIMUM
— —
90 100
135 150
180 200
270 300
450 500
650 700
900 1000
1200 1400
— —
— —
— —
— —
3H10
HOSE END FITTING
AND
HOSE ASSEMBLIES
MINIMUM MAXIMUM
— —
70 100
70 120
85 180
100 250
210 420
300 480
500 850
700 1150
— —
— —
— —
— —
91-00-02
Page 91-02
Revised: December 21, 1981