Adjustments; Electric Eye Alignment - Challenge CHAMPION 305 Instructions And Parts Manual

12.0 Adjustments

for checking and adjusting. Be very careful that tools and other people are clear of moving
parts and that the cutter is not accidentally operated while adjustments are being made.
Whenever working on the machine, disconnect the power and lock it out (see SAFETY
PRECAUTIONS, page 6) unless the directions specifically require the machine to be powered.

12.1 Electric Eye Alignment

If the electric eyes are not in alignment, or if they become out of alignment during a cut cycle due to
vibration, the machine will see them as blocked and will cease any downward motion.
To check if the electric eyes are aligned properly, turn on the power switch and look at the indicator
light pattern on the receiver (left hand unit). If the eyes are functioning properly and aligned properly,
and if there are no obstructions, the light pattern will look like the one shown in Figure 28 below.
To simulate the vibration caused by a normal cut cycle, gently tap on the electric eye housings one at
a time with your hand. Watch the indicator lights to see if any of them change.
If the status light or any of the zone indicator lights are red, this indicates an obstruction. However if
there are no physical obstructions blocking the eye beams, then most likely the electric eyes are out
of alignment. To adjust:
1. Remove the inner housing covers from both eye housings.
2. Loosen the outer mounting screws (Figure 29) to adjust the eye beam units until they are
aligned over their length.
Several of the following tests require the machine to be operational
Power
Status
(Green = OK)
(Red = Problem)
Figure 28 – Electric Eye Indicator Lights
Diagnostic
Zone Indicators
(Green = Clear/Aligned)
(Red = Blocked/Misaligned)
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