Maintenance work on the superstructure
8.9 Cable drums
8 - 68 3 302 746 en Maintenance manual
GMK5200-1
09.03.2018
Maintenance of
the slip ring
assemblies
• Remove the cover (1) or (2).
• Clean and dry the cover.
• Replace the gasket if necessary.
• Only use a cloth and compressed air to
remove any dirt on the slip rings (2).
• Do not use spray oil.
• Check to make sure all screws (1) are tight.
• Attach the cover to the cable drum.
S
Risk of damage to the RCL.
Before maintenance work on the slip ring assemblies, always switch off the
battery master switch so that the cable drum is without power.
This prevents short circuits which may lead to damage to the rated capacity
limiter (RCL).
G
Risk of crushing from movement of the main boom.
Only perform maintenance work when the main boom is resting in the sup-
port and the truck crane is not running. Always ensure that the truck crane
is protected from unauthorised use before beginning maintenance work.
Remove the keys from the crane cab and put up warning signs.
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