Lit. No. 72444, Rev. 05
115
April 1, 2021
MAINTENANCE
Installing Hydraulic Fittings and Hoses
NOTE: Overtightening JIC hose
fi
tting ends
will result in a fractured
fi
tting.
DO NOT
use thread sealant/tape on
fi
ttings or hoses.
This could damage the product. Always use two
wrenches, or a wrench and pliers, to ensure proper
alignment and tightening of
fi
ttings and hoses.
Procedure for Installing SAE O-Ring Fittings
in Valve Block and Rams:
1. Turn jam nut on
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 a wrench and pliers, 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 to 1/4 turn to lock the
fi
tting in place. Final torque on the jam nut
should be approximately 20 ft-lb.
Procedure for Installing 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 a wrench and pliers, hold the hose in
position and tighten the
fl
are nut 1/8 to 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.
Summary of Contents for UltraMount 2
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