Operating The Dryer; Filling The Dryer - Mepu K-SERIES Operating Manual

6 Operating the dryer

The drying process consists of four different stages. Filling, drying, cooling and emptying.

6.1 Filling the dryer

Preparations
Before starting the operations determine the suitable trainer dumping height, and remember to set
up a block for the trailer, to avoid damaging the hopper.
Check the following before dumping:
1. That the shutters of the feeding apparatus are closed. Make sure that all the shutters are
tightly closed.
2. That the divider at the top end of the elevator is in position 3 "drying", i.e. the grain is
flowing into the dryer unit.
3. That the switching cam of the feeding auger is in the "closed" position.
4. That the air intake shutter is adjusted correctly, so that kernels do not fly into the debris
pipe.
5. That all the inspection doors are closed.
Filling
After preparation you can start filling the dryer by turning the selector
switch on the electrical switchboard to position 2 "filling". This activates
the elevator system and the pre-cleaner motor. After that you can start
pouring the grain into the hopper.
If necessary, e.g. when the empty trailer is changed for a full one, the filling
can be stopped either with the 1/0 switch at the rear of the dryer, or with the
selector switch. If the time for changing the trailers is short (less than 15
minutes), there is no need to stop the filling process. If no new grain is
delivered, the conveyors should be emptied of the grain, in order to
minimise the clogging risk when the next filling process starts.
The level guard stops the filling process with a short delay, after the grain level has reached the
level guard sensor and blocked its rotating action. The level guard delay time is set at the factory.
When the dryer is full, there should be about 30 cm of free space below the lower edge of the
spreader disk.
If the dryer is too fill the grain blocks the functioning of the spreader disk. If the spreader disc
cannot rotate, the thermal relay of spreader disk will trip. Reset the thermal relay after about 15
minutes, and remove excess grain from the dryer.
To empty the dryer turn the divider away from the dryer, move the trailer under the pipe, and move
the selector switch to position 1 (emptying). Check the grain level from the manhole. After
discharging a sufficient volume of grain stop the emptying process by turning the selector switch to
position 0.
Before starting the drying process disconnect the hopper bottom auger from the elevator, by pulling
the switch cam backward. After that, close the shutter between the bottom end of the elevator and
the hopper. If necessary, you may leave some grain in the hopper.
In hoppers equipped with their own engine the auger is automatically controlled. When the filling
process is activated, the hopper auger starts automatically, and stops respectively, when the unit is
full.
19 D00125-2019_EN