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2. Servicing the liquid cooling circuit
2.1 Preparation for cooling liquid replacement
What has to be done
1. Switch off the projector.
2. Remove the lamp unit to access the cooling liquid in- and outlet.
3. If excluding the light processor is required while handling the co oling circuit procedures, disconne ct the circuit at the flow switch
(a). Disconne ct the input of the light processor circuit and connect this tube to the flow switch (b ).
a
b
Image 2-2
Excluding light processor
2.2 Draining the liquid cooling circuit
In case of part replacement, consider only draining that part of the circuit which contains the defect part. E.g.
in case of pump replacement; it is preferred to bypass the engine circuit. This to exclude the engine from the
problem.
Necessary tools
• 60 c m of plast ic tube with male valved fitting.
• Syringe co nnected with short t ube with male v alved fitting.
• Empty bottle with a volume of 1 liter.
• Cloths.
Howtodraintheliquidcoolingcircuit
?
1. Couple a plastic tube with male valved fitting to the outlet. Insert the other end into an empty bottle .
Note: Do not open the valve before the tube end is inserted in an empty bottle.
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R59770032 COOLING LIQUID REFURBISHMENT 07/12/2006