Autoquip TORKLIFT - Manual (Page 29)

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BLEEDING AIR FROM THE SYSTEM
1. Bleed any air which may have been entrapped in the hydraulic system by raising the
lift to approximately 50% of its full travel, then lower back down completely. Repeat
this process five or six times.
2. Raise and block the lift (See “Lift Blocking” section).
3. Remove (bleed) any remaining air which may have trapped in the cylinders by slowly
loosening using the bleed screws located on the rod end of the cylinders until air is
heard escaping. Tighten bleeder screws back down when clear oil (no bubbles)
begins to escape.
NOTE: Be extremely careful and loosen screws slowly, the cylinders are under high
pressure and could spray oil.
4. Tighten the screw; make sure no oil comes from the screw when it is tightened.
5. Clean up any spilled oil. Used oil should be discarded as it may contain flushed
contaminates from the line.
VELOCITY FUSE REPLACEMENT
DANGER!
Do not attempt to remove the velocity fuse until the lift is
securely supported with the lift blocking devices and all
hydraulic pressure has been removed from the lifting cylinders
and hydraulic hoses. Failure to follow these instructions could
result in personal injury or death!
Never attempt to take a velocity fuse apart and repair it. These are precision devices
that are factory assembled under exacting conditions. Velocity fuses should always be
replaced.
1. The arrow on the exterior surface of the velocity fuse shows the direction of the
restriction to the oil flow. The arrow should always point away from the cylinder.
2. Do not use Teflon tape on the threaded connections of a velocity fuse. Tape
fragments can cause malfunctioning of the fuse.
3. Check all fitting connections for hydraulic leaks and tighten as necessary.
GENERAL MAINTENANCE