2 bleeding air from system, 3 hydraulic velocity fuse (hvf) replacement, Bleeding air from system – Autoquip Q-LIFT User Manual

Page 27: Hydraulic velocity fuse (hvf) replacement, Notice

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6.3.2 Bleeding Air From System

1. Bleed air from system by raising lift to 50% of full travel,

then lower completely.


2. Hold “DOWN” button for 60 seconds.

3.

Repeat procedure 5-6 times.

If this does not bleed all air

from system, contact Autoquip.


4. Clean up any spilled oil. Dispose of spilled oil in an

environmentally safe manner.

6.3.3 Hydraulic Velocity Fuse (HVF) Replacement


Prevent serious injury or death.

Never go under lift platform until load is removed and scissors
mechanism is securely blocked in raised position with maintenance
devices and hydraulic pressure is relieved.

The HVF is attached to elbow fitting in rod port of cylinder. Do not use a
swivel fitting between HVF and cylinder. If HVF is installed improperly, it
will not lock up in the event of a hydraulic line failure.

Velocity fuse is not repairable. Replace velocity fuse if
defective.

1. Arrow on hydraulic velocity fuse indicates direction

of oil flow restriction. Hydraulic velocity fuse must
be installed with arrow pointing away from cylinder.






Do not use Teflon tape on hydraulic threaded connections. Tape
fragments may damage hydraulic system.


2. Apply Loctite PST #567 pipe thread sealant or equivalent to threads and install fuse to cylinder with

arrow pointing away from cylinder. Tighten fuse.

^ WARNING

NOTICE

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