Grain Systems PNEG-573 - Manual (Page 56)

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SERVICE GUIDE FOR ALL PORTABLE DRYERS SERVICE GUIDE FOR ALL PORTABLE DRYERS SERVICE GUIDE FOR ALL PORTABLE DRYERS SERVICE GUIDE FOR ALL PORTABLE DRYERS SERVICE GUIDE FOR ALL PORTABLE DRYERS
HOW TO DETERMINE A METERING ROLL PROBLEM HOW TO DETERMINE A METERING ROLL PROBLEM HOW TO DETERMINE A METERING ROLL PROBLEM HOW TO DETERMINE A METERING ROLL PROBLEM HOW TO DETERMINE A METERING ROLL PROBLEM
To determine if the metering prob-
lem is from blockage, perform the
following test with the POWER OFF.
REMOVE the drive chain drive chain drive chain drive chain drive chain by
LOOSENING the motor mounting motor mounting motor mounting motor mounting motor mounting
bolts bolts bolts bolts bolts. Refer to photo, and place a
pipe wrench on the hub of the roller
hub of the roller hub of the roller hub of the roller hub of the roller
chain sprocket chain sprocket chain sprocket chain sprocket chain sprocket, on the left hand left hand left hand left hand left hand
metering roll metering roll metering roll metering roll metering roll at the drive end of the
dryer. Apply up to 100 ft. lbs. of force,
and attempt to ROTATE the roll to-
ward the inside of the dryer. If the
metering roll
metering roll metering roll metering roll metering roll will turn, then repeat
for right hand side. If the metering
metering metering metering metering
roll roll roll roll roll will turn, it can be assumed that
no blockage exists, and the problem
is from some other cause. CHECK
for a break in the power train,
power train, power train, power train, power train,
chain, drive key, pin, chain, drive key, pin, chain, drive key, pin, chain, drive key, pin, chain, drive key, pin, etc.
CAUTION: Keep hands away from CAUTION: Keep hands away from CAUTION: Keep hands away from CAUTION: Keep hands away from CAUTION: Keep hands away from
sprocket teeth to avoid injury
sprocket teeth to avoid injury sprocket teeth to avoid injury sprocket teeth to avoid injury sprocket teeth to avoid injury
from chain backlash, as a result
from chain backlash, as a result from chain backlash, as a result from chain backlash, as a result from chain backlash, as a result
of torsion build up in the system
of torsion build up in the system of torsion build up in the system of torsion build up in the system of torsion build up in the system
caused by the jam.
caused by the jam. caused by the jam. caused by the jam. caused by the jam.
The auger discharge switch. The auger discharge switch. The auger discharge switch. The auger discharge switch. The auger discharge switch.
The metering roll drive. The metering roll drive. The metering roll drive. The metering roll drive. The metering roll drive.
HOW TO CLEAR A JAMMED METERING ROLL HOW TO CLEAR A JAMMED METERING ROLL HOW TO CLEAR A JAMMED METERING ROLL HOW TO CLEAR A JAMMED METERING ROLL HOW TO CLEAR A JAMMED METERING ROLL
other noise when making this check.
Once the location is determined, the
roll can be reached from the outside
by OPENING the access door
access door access door access door access door to re-
move the foreign object causing the
jam. The service tool
service tool service tool service tool service tool must be IN-
SERTED before opening doors. (See
below).Swing open the plenum bot-
plenum bot- plenum bot- plenum bot- plenum bot-
tom closure panel tom closure panel tom closure panel tom closure panel tom closure panel. INSERT the ser- ser- ser- ser- ser-
vice tool vice tool vice tool vice tool vice tool above the metering roll metering roll metering roll metering roll metering roll.
Place a pipe wrench on the hub of the
sprocket of the jammed metering roll
metering roll metering roll metering roll metering roll
and TURN the roll. First, backward,
and then, forward several times in an
attempt to dislodge the object, and
clear it through the roll. If this is not
successful, have an assistant TURN
the metering roll
metering roll metering roll metering roll metering roll, and attempt to lo-
cate the jam by sound. SHUTDOWN
the fan/heater
fan/heater fan/heater fan/heater fan/heater, and eliminate any
SERVICE TOOL SERVICE TOOL SERVICE TOOL SERVICE TOOL SERVICE TOOL
This column cutoff damper damper damper damper damper is designed to insert through the grain col-
umn (from the inside of the dryer) immediately above the metering metering metering metering metering
roll roll roll roll roll. This permits opening of the metering roll access door metering roll access door metering roll access door metering roll access door metering roll access door. For ser-
vice or inspection without unloading the dryer, the plenum bottom plenum bottom plenum bottom plenum bottom plenum bottom
closure panel closure panel closure panel closure panel closure panel and metering roll metering roll metering roll metering roll metering roll adjust damper must be REMOVED
prior to using service tool service tool service tool service tool service tool.