Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1128 - Manual (Page 15)

PNEG-1128 Chain Loop System without Controls 15
4. Operation
Operating the Chain Loop System
The Chain Loop is generally used to transfer grain to or from storage bins. Grain can be fed into the system
through an inlet dump hopper or through center or intermediate grain wells in the storage bins. Wells from
more than one bin can be opened at the same time to blend the contents of different bins. The system is
usually oriented vertically (with the tube running under the storage bins), or at an angle with the bottom
tube running along the sides and the top tube running over the fill holes of the storage bins. Horizontal
installations are also possible - check with your dealer for special gear reducer lubrication requirements
for horizontal installations.
The Chain Loop System should always be run under partial load for a period of time to polish the tube
walls before attempting to run at full load. This is especially true when breaking in a new system but equally
important after being idle for a length of time. Observe the amp meter on the drive motor while running
with a partial load until the amperage starts to decline. This is an indication that the tube walls have been
polished enough to handle a larger load.
It is very important to avoid stopping the chain under a loaded condition. Never attempt to restart until the
Loop System has been emptied of as much grain as possible.
Observe the following basic sequence for using the Chain Loop System to fill storage bins.
1. Open the discharge gate above the destination bin.
2. If available, open the discharge gate above a bin downstream from the destination bin to be used as
an overflow.
3. Start the Chain Loop drive motor. Station an individual at the control box to observe the amp gauge
of the drive motor.
4. Let grain flow into the inlet dump hopper. Open the flow control by adjusting the chains on the hopper
a small amount at a time to make sure that the amperage does not exceed the capability of the drive
motor. NOTE: Some materials and grains such as soybeans flow very easily, so it is important to
make sure that the center shield in the inlet hopper is adjusted low enough to prevent overloading
the system.
5. Let the Chain Loop run until the system is empty.
6. Close the discharge gates and the dump hopper flow control when through filling.
7. Shut down the drive motor.
8. Make sure to lock out the power source before leaving the work area.
CAUTION
Lock out the main power source before removing any inspection covers or
shields necessary to empty the system.
CAUTION