7. Maintenance
7.5
Checking cooling liquid level
W
ARNING
:
The procedure below may only be performed by “quali
fi
ed service technicians”.
What should be done?
The projector is liquid cooled. It is important that the liquid level is checked at regular intervals. We advise to check every 3 months.
The liquid level must be between
Min
and
Max
Signi
fi
cant drop in liquid level indicates a major leakage and requires immediate
attention.
How to check the cooling liquid level?
1. Remove the left projector cover. See "Removal of the left cover", page 90.
2. Check the cooling liquid level in the reservoir.
Image 7-3
Checking the cooling liquid level
If the current cooling liquid level is somewhere between
Min
and
Max
, no action is required.
If the current cooling liquid level is approaching the
Min
level point, check for leakage in the cooling system prior to starting the
topping up procedure.
If the cooling liquid level is not visible, open the
fi
ller cap and shine a torch into the reservoir.
74
R5905823 HDQ 4K35 30/11/2015
Summary of Contents for HDQ 4K35
Page 1: ...HDQ 4K35 User and Installation manual R5905823 04 30 11 2015 ...
Page 4: ......
Page 58: ...4 Lenses Lens Holder 54 R5905823 HDQ 4K35 30 11 2015 ...
Page 69: ...6 Starting up 6 STARTING UP R5905823 HDQ 4K35 30 11 2015 65 ...
Page 70: ...6 Starting up 66 R5905823 HDQ 4K35 30 11 2015 ...
Page 84: ...7 Maintenance 80 R5905823 HDQ 4K35 30 11 2015 ...
Page 96: ...8 Removal and installation of the projector covers 92 R5905823 HDQ 4K35 30 11 2015 ...
Page 98: ...A Dimensions and specifications 94 R5905823 HDQ 4K35 30 11 2015 ...
Page 108: ...B Environmental information 104 R5905823 HDQ 4K35 30 11 2015 ...