SECTION 00 - GENERAL INFORMATION - CHAPTER 1
00-11
PIPE THREAD FITTING TORQUE
Before installing and tightening pipe fittings, clean
the threads with a clean solvent or Loctite cleaner
and apply sealant Loctite no. 567 for all fittings
including stainless steel or no. 565 for most metal
fittings. For high filtration/zero contamination sys-
tems use no. 545.
THREAD SIZE
TORQUE (MAXIMUM)
1/8″ -27
13 N⋅m (10 ft-Ib)
1/4″ -18
16 N⋅m (12 ft-Ib)
3/8″ -14
22 N⋅m (16 ft-Ib)
1/2″ -14
41 N⋅m (30 ft-Ib)
3/4″ -14
54 N⋅m (40 ft-Ib)
INSTALLATION OF ORFS (O-RING FLAT
FACED) FITTINGS
When installing ORFS fittings thoroughly clean both
flat surfaces of the fitting, 1, and lubricate the O-ring,
2, with light oil. Make sure both surfaces are aligned
properly. Torque the fitting to specified torque listed
throughout the repair manual.
IMPORTANT: If the fitting surfaces are not properly
cleaned, the O-ring will not seal properly. If the fitting
surfaces are not properly aligned, the fittings may be
damaged and will not seal properly.
IMPORTANT: Always use genuine factory replace-
ment oils and filters to ensure proper lubrication and
filtration of engine and hydraulic system oils.
The use of proper oils, grease, and keeping the
hydraulic system clean will extend machine and
component life.
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