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15
DRYER PRE START CHECKS
The metering roll access area.
With the grain supply SHUT OFF,
quickly bump the LOAD AUGER
switch to MANUAL, and see if the
load auger rotates clockwise as
viewed from the drive end, or coun-
terclockwise if the dryer is a front
load model. If the wet grain supply
auxiliary is wired to the dryer it
should also rotate in the correct di-
rection at this time. Turn the LOAD
AUGER switch to the AUTO posi-
tion. The top auger and wet grain
supply auxiliary should run for one
minute, and then the dryer will shut
down leaving the safety shutdown
LOAD AUGER
To check 1 speed operation place
the UNLOAD switch in the 1 SPEED
setting. Turn up the HIGH SPEED
METERING ROLL DIAL until the
metering rolls start rotating. The
bottom auger should rotate coun-
terclockwise as viewed from the
drive end. The metering roll drive
motor should rotate clockwise as
viewed from the drive end of the
ONE SPEED OPERATION
message (out of grain warning) dis-
played. Press the DRYER POWER
STOP button to reset the panel, then
press the START button.
To check the MOISTURE CON-
TROL THERMOSTAT leave the
UNLOADING switch on 1 SPEED,
and slowly turn down the MOIS-
TURE CONTROL THERMOSTAT.
As the setting is decreased, the in-
dicator light should come on and the
metering rolls should stop operat-
ing. The bottom auger will stop af-
ter the 30 second clean out delay,
providing that the dryer is still being
held by the MOISTURE CONTROL
THERMOSTAT. Rotate the MOIS-
TURE CONTROL THERMOSTAT
up to its maximum setting. The light
should go off, and the metering
rolls should restart along with the
bottom auger if it has stopped.
To check 2 SPEED operation
move the switch to the 2 SPEED po-
sition, set LOW speed on 200 and
HIGH speed on 600. Slowly turn the
thermostat until the MOISTURE
CONTROL switch light comes ON.
The METERING ROLL SPEED is
now controlled by the LOW speed
dial. Turning the THERMOSTAT the
other way until the light goes out now
leaves the metering rolls controlled
by the HIGH SPEED DIAL.
MOISTURE CONTROL
THERMOSTAT
To check the metering roll operation
turn either the LOW speed or HIGH
speed knob clockwise, and the ME-
METERING ROLL
OPERATION
gear box. If the dry grain take away
auxiliary is wired to the dryer, it
should start and rotate in the proper
direction.