Dryer pre start checks – Airstream 1100 SERIES SINGLE FAN PNEG-339 User Manual

Page 15

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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.

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