Lit. No. 49513, Rev. 00 99 August 15, 2011
MAINTENANCE
Use the following procedure to install SAE
O-ring fi ttings in valve block and rams:
1. Turn the jam nut on the fi tting as far back as
possible.
2. Lubricate the O-ring with clean hydraulic fl uid.
3. Screw the fi tting into the port by hand until the
washer contacts the port face and shoulder of
the jam nut threads.
4. Unscrew the fi tting to the proper position no
more than one full turn.
5. Using two wrenches, hold the fi tting body
in position and tighten the jam nut until the
washer again contacts the port face, then
tighten an additional 1/8–1/4 turn to lock the
fi tting in place. Final torque on the jam nut
should be approximately 20 ft-lb.
Use the following procedure to install
hydraulic hoses:
1. Screw the fl are nut onto the fi tting fl are and
hand tighten.
2. Align the hose so there are no twists or sharp
bends and so it will not be pinched or pulled
by moving parts.
3. Using two wrenches, hold the hose in position
and tighten the fl are nut 1/8–1/4 turn beyond
hand tight. Final torque on the fl are nut should
be approximately 20 ft-lb.
4. Reinstall any protective hose wraps in their
original positions.
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