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PROBLEMS AND REMEDIES
R
Problem
The hoist does not lift
Leaking material from the edges
from the stem
Always close the compressed air supply and release the pressure in the system before any type of control or
replacement of pump parts or hoist.
ED. 10 - 07/2020 - Cod. 150133
Pneumatic hoist twin mast for 200 litres
Cause
Hoist supply air is too low.
The two-way valve knob is not rotated
upward.
The pressing plate is locked in the trunk.
Flat seals blowing worn.
The two-way valve knob is turned down
and the connecting air supply of the hoist
is excessive.
Solutions
Increase air pressure supply of the hoist.
Turn the knob upwards.
Gradually open the valve for air venting
in order to promote the release of the
pressure plate from the stem.
Replace the gaskets.
Turn the knob in the middle position or
reduce air pressure.
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