Rectifying faults
Fixing the pump shaft (coolant circuit)
099-005444-EW501
17.03.2015
107
7.6
Fixing the pump shaft (coolant circuit)
DANGER
Do not carry out any unauthorised repairs or modifications!
To avoid injury and equipment damage, the unit must only be repaired or modified by
specialist, skilled persons!
The warranty becomes null and void in the event of unauthorised interference.
• Appoint only skilled persons for repair work (trained service personnel)!
Electric shock!
Welding machines use high voltages which can result in potentially fatal electric shocks
and burns on contact. Even low voltages can cause you to get a shock and lead to
accidents.
• Do not touch any live parts in or on the machine!
• Connection cables and leads must be free of faults!
• Switching off alone is not sufficient!
• Place welding torch and stick electrode holder on an insulated surface!
• The unit should only be opened by specialist staff after the mains plug has been
unplugged!
• Only wear dry protective clothing!
• Wait for 4 minutes until the capacitors have discharged!
Continuing non-use and impurities in the coolant may result in the the coolant pump not being in proper
working order.
Figure 7-4
• Switch off machine at the main switch.
• Insert a plain slot screwdriver with a maximum tip width of 6.5 mm through the maintenance opening
and place in the centre of the pump shaft. Turn the screwdriver clockwise until the pump shaft can be
easily rotated again.
• Remove
screwdriver.
• Switch on the power source at the main switch.
