User manual C4 – C6
82
7.9. Troubleshooting
Remove the key from the key switch when performing
work on the compact crane.
Never use your hand to locate a leak in the hydraulic
system; use a piece of paper or cardboard instead.
Oil under high pressure can penetrate the skin and
cause poisoning.
Hydraulic oil can be hot; wear gloves and safety
glasses when troubleshooting the hydraulic system.
When a leak has developed in the hydraulic system,
not only repair the leak immediately but also top up
the oil reservoir.
When disconnecting hydraulic lines and hoses,
precautionary measures must be taken to ensure that
the line/hose is no longer under pressure once the
supply of energy to the system has been switched off.
This can be achieved by moving the control levers
back and forth.
Correct operation and careful maintenance ensure that the compact crane will have a long life with
fewer problems.
The warnings above must be heeded for all work performed in connection with a malfunction.
A number of possible malfunctions are shown hereafter. If a malfunction occurs that is not listed in
this user manual, contact your dealer or Hoeflon International B.V.
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