23
TROUBLESHOOTING CHART
Symptom Probable Cause Remedy
Engine will not start No fuel Check fuel gauge on engine sheet
metal.
Airlock not turning Safety switch open Make sure rear cleanout door and
airlock discharge are closed tightly
and interlock switches are working
properly.
Blue light out on panel Check 10A circuit breaker in control
box.
Airlock speed control turned down
too far
Adjust airlock needle valve out. See
page 12.
Quick-Dump feature activated / left
on
Deselect Quick-Dump from the
Option screen.
Floor not turning Motorized flow control valve closed Increase material feed control.
Airlock constantly auto-reversing Overfeeding airlock Decrease floor speed; see pg. 15
for tips.
Dull airlock knives Check knife clearance; sharpen if
dull.
Pressure switch time delay set too
low
Check timer TR1; should be set for
0.5 sec.
Airlock stalling, not auto-revers-
ing
Pressure switch is not closing at
2,400 psi
Check pressure switch connections
or replace switch in necessary.
Discharge material pulsing, not
smooth
Too much air Decrease engine throttle and floor
speed accordingly.
Airlock turning too fast / slow Adjust airlock speed; see page 15
for tips.
Partial plugging in airlock discharge Check airlock discharge pan fo
blockages and air leaks.
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