DEMAG DC-Com 1, Руководство по эксплуатации

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8 Maintenance/repair
8.1 Safety instructions for maintenance and repair work
The following sections contain a description of maintenance work that is necessary for optimum and uninterrupted
operation of the equipment.
DANGER
Live components
Danger to life and limb.
Work on electric equipment may only be carried out by qualified specialist personnel (

"Definition of person‐
nel", Page 10) in compliance with the safety regulations.
Switch off the electric power supply before starting work. The mains connection or isolating switch must be pro‐
tected against unauthorised or accidental restoration of the power supply by means of a padlock.
WARNING
Risk of burns
Risk of burns from contact after the chain hoist has been in operation.
Do not touch hot motor housings. Allow the motor to cool down before performing any maintenance or repair
work.
WARNING
Inappropriate maintenance work
Danger to life and limb. Risk of material damage.
Maintenance and repair work may only be carried out by authorised, instructed personnel (

"Definition of per‐
sonnel", Page 10) in compliance with the safety regulations.
–
Secure and fence off the working and danger zone.
– If an elevating work platform is used for maintenance work, only use appropriate attachments for the lifting
of persons which ensure that work is carried out in a safe and stable position.
– Only suitable, tested and calibrated tools and accessories may be used for maintenance work.
–
Only use approved spare parts, see also  "Use of spare parts", Page 9.
– Wear protective equipment.
– Be careful when working on open components that have sharp edges. Risk of injury.
– Keep the working area clean and tidy. Store any unneeded machine or installation parts and tools in such a
way that there is no risk of them falling.
– Fit components correctly and as intended. Comply with specified bolt tightening torques. Incorrectly fitted
components may fall and cause severe injuries.
– Welding work may only be carried out by persons who are specially qualified. DIN welding work require‐
ments must be fulfilled. The electrode holder and earth must be connected to the same assembly when
welding work is carried out. Otherwise serious damage may be caused to the hoist. Trolleys must not be
welded or drilled.
– Customer-specific regulations must be observed.
CAUTION
Loose connections
Loose connections are a danger to life and limb and a risk of damage to the machine.
Metal nuts featuring a locking element (self-locking nuts) are mainly used for Demag chain hoists.
–
Self-locking nuts must not be replaced by other types of nut.
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