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WARNING!
RISK OF ELECTRICAL SHOCK! Turn ALL power to unit OFF before service
.
All service should be done by or under the supervision of a trained technician
FAQ:
1. The vacuum is taking along time to remove all of the air.
This can be caused by incorrect placement of the nylon cord. The nylon cord is used to create “paths” for the air to escape from the
center of the screen.
Place one end of the rope next to the vacuum nipple located toward the rear and in the center of the vacuum
frame, drape the other end of the rope across the inside (squeegee side) of the frame. This will allow all of the air to escape out of
the inside of the screen and provide necessary contact between your film or vellum and the emulsion. Do not place the rope
directly under the vacuum nipple as this will reduce the vacuum speed and could negatively affect your blanket to screen contact
If the nylon cord is properly placed, check the adjustment of the vacuum frame clamps, if out of adjustment tighten the nylon lock
nuts an equal amount of turns on each one and try closing the frame. If it takes an excessive amount of force to lock them down
back the nuts off and try again. They should be firm but no excessive to ensure a tight seal is formed. Also check the clear vacuum
line running from the vacuum pump to the modified stem (Image 1) Check for kinks or disconnected lines, if necessary un-kink or
replace vacuum lines.
Image 1
2. The bulbs in my exposure unit are flickering (When I touch them they stop)
This is caused by improper grounding. Make sure the receptacle that the unit is plugged into is properly grounded. Also have an
electrician check the building ground.
Another Symptom of a bad ground is when the timer is activated only some of the lights come on.
3. One of my bulbs is not coming on.
This may be cause by a bad ballast. To test the bulb/ ballast with power to the unit off, remove the non-functioning bulb and swap
it with a known working bulb. Turn the unit off, if the if the position of the non functioning bulb has not changed the ballast
controlling that bulb is bad.
If the position of the non functioning bulb does change, the bulb will need to be replaced.
