OPERATION
35
PNEG-1521
Commercial Direct Gear Drive Bin Sweep Auger
13. MOTOR SELECTION
A. The following horsepower recommendations are for
conveyance of reasonably dry grain. Grain with moisture
content above 15% will require a greater horsepower to obtain
the designed capacity. The maximum possible capacity will be
less with high moisture grain than it will be with dry grain. Use
an electric motor of the correct size that operates at 1750
RPM. DO NOT use a motor size that is greater than what is
shown for the largest bin size in your column.
B. Consideration should be given to the proper size auger for a
batch drying or any intermittent type of operation. When augers
are stopped and restarted under full load, damage to the auger
may result. Starting the auger at a reduced grain load will be
better than starting it at full load. Startup will be easier and
convey more efficiently if the auger is kept from absolute filling.
The auger capacity can fluctuate greatly under a variety of different
conditions. Moisture content, different commodities, the amount of foreign
matter, and auger speeds affect the performance of the auger and it s
efficiency. Moisture content of 25% can reduce auger capacity by as much as
40% under some conditions.
A main power disconnect switch capable of being locked only in the off
position should be used. The Switch should be locked out whenever work is
being done on the Direct Gear Drive Bin Sweep.
1. Electric motors and the controls should be installed by a qualified
electrician and must meet the standards set by the National Electric Code
and all state and local codes.
2. A main power disconnect switch capable of being locked only in the OFF
position shall be provided. This disconnect shall be locked whenever
work is being done on the auger .
3. A magnetic starter should be used to protect your motor when starting and
stopping the Unload system. The magnetic starter should stop the motor
in case of a power interruption, conductor fault, low voltage, circuit
interruption, or a motor overload. The motor must then be restarted
manually. Some motors have built-in thermal overload protection. If this
type of a motor is being used, use only those motors with a manual reset.
4. The motor starting controls must be located outside of the bin. Locate the
motor starting controls outside of the bin, but near the bin door so the
operator has full view of the operation inside the bin.
5. Disconnect the power before resetting the motor overloads.
6. Reset controls and the motor staring controls must be located so that the
operator has full view of the entire operation.
7. Make certain that all electric motors are grounded.
8. Shut off and lockout the power to adjust, service, or clean the Unload
system.
Horizontal and
25° Powerheads
12" Comm.
Vertical
Bin Dia.
HP
Belt Quantity
Belt Quantity
36'
15
3
3
42'
15
3
3
48'
15
3
3
54'
15
3
3
60'
15
3
3
72'
20
4
3
75'
20
4
3
78'
20
4
3
Motor Selection
