3500 ENGINE ATTACHMENTS
TORQUE FOR FLARED AND O-RING FITTINGS
The torques shown in the chart that follows are to be used on the part of 37 Flared 45 Flared and
Inverted Flared fittings (when used with steel tubing), O-ring plugs and O-ring fittings.
ASSEMBLY OF FITTINGS WITH
STRAIGHT THREADS AND O-RING SEALS
Put locknut (3), backup washer (4) and O-ring
seal (5) as far back on fitting body (2) as
possible. Hold these components in this position.
Turn the fitting into the part it is used on, until
backup washer (4) just makes contact with the
face of the part it is used on.
NOTE: If the fitting is a connector (straight fitting) or plug,
the hex on the body takes the place of the locknut. To
install this type fitting tighten the hex against the face of
the part it goes into.
To put the fitting assembly in its correct position
turn the fitting body (2) out (counterclockwise) a
maximum of 359 Tighten locknut (3) to the
torque shown in the chart.
ELBOW BODY ASSEMBLY
1. End of fitting body (connects to tube). 2. Fitting
body. 3. Locknut. 4. Backup washer. 5. O-ring
End of fitting that goes into other part.