UVP Crosslinkers - Manual (Page 11)

UV CROSSLINKERS UVP
11
GENERAL SERVICING PROCEDURES
A. Operations without Removing the Top Cover
Changing the tubes
It is recommended to change all FIVE 8-Watt 254nm UV tubes at the same time. The unit does
not require recalibration if you are replacing the old sources with new sources of the same
wavelength.
1.
Purchase five tubes from UVP.
2.
Unplug the unit from the electrical supply.
3.
Reach up to the inside top of unit and carefully rotate each UV tube a 1/4 to 1/3 turn and pull
gently downward.
4. After removing all five old tubes, carefully install the five new tubes.
5. Dispose of the old UV tubes properly.
B. Operations with Top Cover Removed
Removal of top cover
Remove the four screws located on the two sides of the unit (2 each side).
Remove the cover, moving in an upward direction and store safely.
All of the operations below are described as taking place within the unit unless otherwise stated.
Replacement of tube holders
1.
Open front door on unit.
2.
Locate tube holders to be changed. (These will be seen at the front and back of the internal
chassis assembly - 5 at the front and 5 at the back).
3. Loosen and remove screw on the tube holder(s). This screw is located in the main chamber-
at the top and just in front of the tube holder(s).
4. The tube should now be loose.
5. Cut all of the cable ties coming from the tube holder following the two wires from the tube
holder to where it terminates. Note: There will be two different termination points for each
tube holder. Once this has been located, cut the wires (marking them to ensure easy
replacement).
6. The tube holder(s) can now be removed by pushing the holder into the main chamber and
feeding the wires through the cut out.
7. Replace tube holder(s). (Part number 36-0003-01)
8. In order to refit the tube holder, reverse the above procedure using butt crimps to reconnect
the wires.