莱康明发动机大修手册 OVERHAUL MANUAL LYCOMING 76 SERIES AIRCRAFT ENGINES(69)

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954 bD-BE  Oil Filter Bypass Spring .047 1.00 in. 3.05 lb. 3.55 lb. 3.0 lb. min.
955 806 D  Magneto Coupling Spring .091 .603 in. 20 lb. 22 lb. 19 lb. min.
SSP1776  1-36
STANDARD TORQUE
UNLESS OTHERWISE LISTED
Torque limits for propeller attaching bolts to be supplied by propeller or airframe manufacturer.
TABLE I
BOLTS, SCREWS AND NUTS

Torque TorqueThread In. Lb. Ft. Lb. Thread In. Lb. Ft. Lb.
10 49 1/2 900 75
1/4 96 9/16 1320 110
5/16 204 17 5/8 1800 150
3/8 360 30 3/4 3240 270
7/16 600 50

THIN NUTS (1/2 DIA OF BOLT) -1/2 LISTED TORQUE
TABLE III
CRUSH TYPE ASBESTOS GASKETS

Thd. Pitch On Part ANGLE OF TURN Tube Size To Be Tightened Aluminum Copper Threads Per Inch Asbestos Asbestos
(-3) 3/16 8 (-4) 1/4
135 67

10 135 670 (-5) 5/16 12 180 90 (-6) 3/814 180 90
(-8) 1/2
16 270 135
(-10) 5/8
18 270 135
20 270 135
24 360 180
28 360 180

NOTE
Install all crush type gaskets except the self centering
type, with the unbroken surface against the flange of
the plug or part being tightened against the seal. Turn
the part until the sealing surfaces are in contact and
then tighten to the angle of turn listed for the
appropriate thread size.

NOTE: Lubricate Threads Unless Otherwise Specified.
SSP1776 1-37
TABLE II
PIPEPLUGS
Torque Thread In. Lbs.
1/16-27 NPT 40 1/8-27 NPT 40 1/4-18 NPT 85 3/8-18 NPT 110 1/2-14 NPT 160 3/4-14 NPT 230 1-11 1/2 NPT 315
TABLE IV
FLEXIBLE HOSE OR TUBE FITTINGS
Torque Th read In. Lbs.
3/8-24 30 7/16-20 30 1/2-20 35 9/16-18 35 3/4-16 60 7/8-14 70
TABLE V
STUDS
MIN. DRIVING TORQUE

Torque
Threads In. Lb s.
1/4-20 15

 

 

5/16-18 25
3/8-16 50

SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES SECTIONV SPECIALTORQUE REQUIREMENTS
931

ADJUSTABLE OIL RELIEF VALVE
Engine Accessories and Hardware
1-38

SSP1776
PART 1 DIRECT DRIVE ENGINES SECTIONV SPECIALTORQUE REQUIREMENTS
921-

920

Engine Accessories and Hardware
SSP1776 1-39

SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
915
915

EngineAccessoriesand Hardware
SSP1776 140

SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
955

Engine Springs and Hardware
SSP1776 1-41

 

 

 

 

 

　
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