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TROUBLESHOOTING CHART:
Symptom Probable Causes Remedy
No material discharge Floor not turning Turn floor switch ON. Reset
speed control.
Electrical control system off Check status lights.
Feed roll jammed Clear jam; reset speed control.
Air valve auto-
reverses excessively
Feed rate too high Slow floor speed control.
Dull air valve knife Sharpen and reset knife.
Poor material Change material.
Air valve motor stalls
in reverse, cycling
forward to reverse
Overfeeding Slow speed control
Foreign object in transition or
hose outlet
Shutoff engine.
Remove object.
Air valve motor stalls
in forward, no auto
reverse
Knives dulled or chipped; Knife
clearance too large
Sharpen blades;
reset knife clearance
Feed roll stops Floor speed control set too low Reset speed control 1/2
to one turn from minimum
Foreign object in material Shutoff engine.
Remove object.
Relief valve too low on roll Reset relief valve to 1850 psi
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