TM 5-3825-226-24
TORQUES FOR OTHER FITTINGS
Ermeto Tube Fittings
Put nut and sleeve over the tube with head or shoulder end of
sleeve next to nut. Push tube into counterbore of fitting body as
far as possible. Turn nut clockwise until sleeve holds tube and
prevents movement. Tighten the nut 11/4 turns more to seat
sleeve and give a locking action. When necessary to assemble
again, put sleeve over tube and tighten nut until a sudden
increase in torque is felt. Then tighten 1/6 to 1/3 turn more to
seat the sleeve.
Flex Fittings
Put nut and sleeve over tubing and push tube into counterbore
of fitting body as far as possible. Tighten the nut until it is
against the hex part of the fitting body.
Hi Duty (shear sleeve) Tube Fittings
After tube has been put through the nut and makes contact
against the tube shoulder in the fitting body, turn the nut with a
wrench until a small decrease in torque is felt. This is an
indication that the sleeve has been broken off of the nut. Hold
the tube to prevent turning and tighten the nut 1 and 1/2 turns.
Hi Seal Fittings
Put nut and sleeve over the tubing with the short heavy end of
the sleeve facing the end of tubing. Put the tube end against
the counterbore in the body of the fitting and tighten until nut is
over the last thread on the body. The remainder of space is
used whenever the fitting is removed and installed again.
A22920X2
1-62
