72 1260 Infinity Micro Degasser Service Manual
8 Repairs
Overview of Internal Parts
Exchanging the Proportional Valve
1 Remove Top Cover, see “Removing and Refitting the Top Cover” on
page 55.
2 Disconnect the valve connector from the control board (CN8) (for
identifying internal parts see “Overview of Internal Parts” on page 66).
3 Loosen and remove the holding screws of the valve.
4 Loosen and remove the two screws of the holding plate at the valve.
5 Disconnect inlet and outlet tubes from the valve.
6 Fix the holding plate to the new valve.
7 Connect the two vacuum tubes to the valve. The inlet of the valve is
labeled IN and is connected to the vacuum pump.
8 Fix the valve with the two screws to its holder.
9 Connect the valve cable to the control board (CN8).
When Valve not switching correctly or leaking
Tools required p/n Description
8710-0899 Screwdriver, Pozidriv #1
Parts required # p/n Description
1 G1379-60003 Proportional valve
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