Fixing The Pump Shaft (Coolant Circuit) - EWM cool50-2 U40 Operating Instructions Manual

7.3

Fixing the pump shaft (coolant circuit)

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)!
Risk of injury from electrical voltage!
Voltages can cause potentially fatal electric shocks and burns on contact. Even low
voltages can cause a shock and lead to accidents.
•
Never touch live components such as welding current sockets or stick, tungsten or wire
electrodes!
•
Always place torches and electrode holders on an insulated surface!
•
Wear the full personal protective equipment (depending on the application)!
•
The machine may only be opened by qualified personnel!
Continuing non-use and impurities in the coolant may result in the the coolant pump not being in proper
working order.
•
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.
099-008603-EW501
27.07.2016
Fixing the pump shaft (coolant circuit)
WARNING
Figure 7-2
Rectifying faults
23