Service manual Mastercool 30 Version 1.0 1.11.2011
11
Kemppi Oy
• Open the pump crown and check the pressure valves if they are clean and intact
• Clean the area around the valves and replace valves if needed
• Note! Be careful while installing valves, they must be in right sides, if not pressure won’t
rise at all
• Detach membrane support from piston and check the condition, replace if needed
o Note! When assembling the pump, be careful NOT to over tighten PT
screw to avoid damaging the parts
• Before attaching the crown cover be sure the rubber sealing ring is fully escorted
through the crown cover and its sealing
• While attaching the crown cover, be careful NOT to over tighten two PT screws to avoid
damaging the pump frame
4.3. Measurements and tests
4.3.1. Troubleshooting in error cases
The next two chapters may give ideas how to rectify possible cooler error cases. Before making further
actions to cooler it is best to change another TIG torch to be sure it is not the source of problems. Check
also that coolant level is high enough and add if needed. See the LED information in the A001 control
card.
Over pressure:
In some cases high pressure is consequence of very long water cables or cold temperature. In these
cases jumpers X11 and X10 can be used to get more tolerance to keep cooler running.
• Close X11 to get more tolerance for over pressure alarm
Pressure valve from membrane chamber
to pressure chamber and to water hose
(valve on this side)
Pressure valve from incoming chamber to
the membrane chamber (valve on the
other side)
Rubber sealing
ring
Crown cover
and its sealing
Piston
Membrane chamber
in the crown
Membrane
Membrane support
and PT screw
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