Case 2050M - Torque - Hydraulic Tubes and Fittings - Standard Torque Data for Hydraulics

7-MAINTENANCE
Torque-Hydraulictubesandttings-Standardtorquedataforhydraulics
Installationofadjustablettingsinstraight
threadO-ringbosses
1.LubricatetheO-ringbycoatingitwithalightoilor
petroleum.InstalltheO-ringinthegrooveadjacent
tothemetalbackupwasherwhichisassembledatthe
extremeendofthegroove(4).
2.InstallthettingintotheSAEstraightthreadbossuntil
themetalbackupwashercontactsthefaceoftheboss
(5).
NOTE:Donotovertightenanddistortthemetal
backupwasher.
3.Positionthettingbyturningout(counterclockwise)
uptoamaximumofoneturn.Holdingthepadofthe
ttingwithawrench,tightenthelocknutandwasher
againstthefaceoftheboss(6).
230856591
Standardtorquedataforhydraulictubesandttings
Standardtorquedataforhydraulictubesandttings
37°arefemaleswivelStraightthreadO-ringBoss
(ORB)
Dash
Size
TubingOD
ThreadsizeTorqueTorque
-46.4mm
(1/4in)
7/16-20
15-16N·m
(11-12lbft)
18-26N·m
(13-19lbft)
-5
7.9mm
(5/16in)
1/2-20
19-21N·m
(14-15lbft)
23-26N·m
(17-19lbft)
-69.5mm
(3/8in)
9/16-18
24-28N·m
(18-21lbft)
29-40N·m
(21-30lbft)
-812.7mm
(1/2in)
3/4-16
49-53N·m
(36-39lbft)
49-57N·m
(36-42lbft)
-1015.9mm
(5/8in)
7/8-14
77-85N·m
(57-63lbft)
59-90N·m
(44-66lbft)
-1219.1mm
(3/4in)
1-1/16-12
107-119N·m
(79-88lbft)
93-128N·m
(69-94lbft)
-1422.2mm
(7/8in)
1-3/16-12
127-140N·m
(94-103lbft)
122-134N·m
(90-99lbft)
-1625.4mm
(1in)
1-5/16-12
147-154N·m
(108-114lbft)
151-174N·m
(111-128lbft)
-2031.8mm
(1-1/4in)
1-5/8-12
172-181N·m
(127-133lbft)
198-218N·m
(146-161lbft)
-2438.1mm
(1-1/2in)
1-7/8-12
215-226N·m
(159-167lbft)
209-235N·m
(154-173lbft)
Thesetorquesarenotrecommendedfortubesof12.7mm(1/2in)ODandlargerwithwallthicknessof0.889mm
(0.035in)orless.Thetorqueisspeciedfor0.889mm(0.035in)walltubesoneachapplicationindividually.
Beforeinstallingandtorquing37°aredttings,cleanthefaceoftheareandthreadswithacleansolventorLoctite
cleanerandapplyhydraulicsealantLOCTITE®569™tothe37°areandthethreads.
Installttingandtorquetospeciedtorque,loosenttingandretorquetospecications.
7-6