Barco HDF W series, Service Manual

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15. Liquid cooling circuit
15.8 Replacement of the complete cooling pump
This procedure assumes that the Light Processor is removed from the projector (see chapter “Light processor
removal) and that the liquid cooling circuit” is drained (see “Draining the liquid cooling circuit”).
Necessary tools
• 3 mm Allen wrench with ball point.
• 7 mm open-end wrench.
• PH2 Phillips screwdriver.
• Cloths.
• Universal pair of pliers.
• Knife.
How to replace the pump
1. Disconnect the wire unit of the pump.
Image 15-40
Electrical disconnection
2. Cut both hoses from the pump house. Cut just next to the clip to have a minimal loss in length of the hose.
Image 15-41
hose cutting
3. Remove both clips from the pump house. Use an universal pair of pliers to push both clip tongs to each other in order to open
the clip.
Note: It is almost impossible to remove fi rst the clip and then to pull off the hose.
4. Release the two hexagon socket head cap screws (reference 2) which fasten the pump motor to the seating of the pump. Use a
3 mm Allen wrench to release the screws and a 7 mm open-end wrench to hold the nut (reference 3) when releasing the screw.
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