Lissmac MAB 2001, Operating Instructions Manual

Page: 37 / 67

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TROUBLESHOOTING
WARNING
Maintenance and repair work
Personnel injury or property damage may result.

Maintenance and repair works must only be carried out by qualified personnel.

Pull the power plug before any maintenance or repair work.

The masonry working platform must be secured against turning on by other people.
 The masonry working platform must always be well secured against possible lowering during
repair or maintenance work (risk of crushing).
Errors Cause Remedy
When operating the foot switch, the
platform does not move up although the
unit is running. Directional seat valve at the unit defective The valve must only be replaced by the
manufacturer or by trained staff.
The platform does not move up to the
end position. Not enough hydraulic oil in the tank Replenish oil
Platform does not move down Magnetic valve at the cylinder defective The valve must only be replaced by the
manufacturer or by trained staff.
Foot switch defective Repair only by trained staff
Lifting force of the platform reaches no
rated load Pressure is too low Only by the manufacturer or
by trained staff
Oil loss at the screw connections Screw connections loosened Tighten screw connections.
Seal defective Only by the manufacturer or
by trained staff
Platform lifts with jerks Air in the hydraulics Venting by the manufacturer or
by trained staff
Lifting speed is reduced Temperature of the hydraulic oil is too low Depending on the outdoor temperature
Venting by the manufacturer or
by trained staff
Unit is not running Foot switch defective Must only be removed by a specialist
electrician
Motor defective