Liftket B13 - Maintenance; Inspection and Maintenance Works

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10 Maintenance
NOTE
All maintenance works can be carried out by trained specialists only. Defects must be
reported immediately to the operator in writing. The operator must initiate the
elimination of such defects by a specialist.
CAUTION
All maintenance works must be carried out on unloaded and disconnected electric
chain hoists exclusively. Switch off the mains master switch and secure it against
unauthorised re-connection.
The maintenance table contains the parts and functions to be verified, and the maintenance works.
10.1 Inspection and maintenance works
NOTE
The following inspection intervals are guidance values that should be shortened under
harsh operating conditions, such as in multi-shift operation, at constant nominal load,
in dust, aggressive environmental loads, extreme temperatures and environmental
effects.
Inspection
Daily
Every 3
months
Yearly
Visual check
General condition
●
Load chain (twisting, rust, damage)
●
Screw joints
●
Chain hold-down and chain guide
●
Safety elements
●
Load hook and suspension hook for cracks and rust
●
Chain box and the fastening of the chain box
●
Pendant control, control cable, mains connector cable
●
Trolley bumper
●
Trolleys and running wheels
●
Availability and legibility of the Operating instructions
●
Complete availability and legibility of warning inscriptions
●
Functional testing
Brake
●
Slipping clutch
●
End position limiter
●
Checking for wear
Load chain
●
Chain sprocket replacement if the bearing surface is worn by about
1 mm
●
Load hook centre punch spacing measurement
checking of the securing of the hook nut
●
Suspension hook centre punch spacing measurement
checking of the securing of the hook nut
●
Maintenance
Load chain lubrication
●
Hook tackle, hook block, suspension hook lubrication
●
Brake setting or replacement (checking of the air-gap)
●
Clutch setting (release limit)
●
Table No. 7: Inspection and maintenance works
NOTE
The electric chain hoist was dimensioned in compliance with Standard FEM 9.511. According to
FEM 9.755 the residual safe working period must be established and documented every year.
If the residual safe working period calculations are fully available, then the electric chain hoist
must be subjected to a general overhaul when the theoretical safe working period (maximum
safe working period) has been reached.
If the usage of the electric chain hoist is not certified, then pursuant to FEM 9.755 the general
overhaul must be carried out not later than after 10 years.