PNEG-1707
TM-Series Tower Dryer
55
10. Service
Pre-Seasonal Inspection and Service
The dryer is made of weather-resistant material, and is designed to require minimum service. However,
each season we recommend the following items be checked before the unit is used, and any damaged or
questionable parts replaced. These checks will help eliminate possible failures, and assure dependable
operation of the equipment.
1. Shut off electrical power. Open power box and control box, and inspect for moisture, rodent damage
or accumulated foreign material present. Inspect and tighten any loose terminal connections.
Replace any damaged or deteriorated wiring.
2. Lubricate the blowers, motors, and metering system as outlined in the lubrication table
.
3. Inspect and clean the burner. Visually check that no holes in the stainless steel air mixing plates are
plugged. If burner ports are plugged, clear them with a piece of wire or a drill bit.
4. Check electrical connections at both the flame rod and spark plug. Clean spark ignitor and flame rod.
Replace if necessary.
5. Check drain valve on gas train to ensure that there is no water in the gas train. Valve should always
be open when the dryer is not being used. Ensure that drain valve is closed prior to dryer operation.
6. Check the discharge area to ensure that the area is cleaned of stalks and old grain. Inspect the
sweeps for excessive wear.
7.
IMPORTANT:
The covers to the discharge sections on the tower dryers must be in place and
clamped down at all times when the dryer is in operation. If the cover is off during operation, the
vacuum created by the blowers will suck foreign matter from the discharge area and deposit it in the
heat section of the dryer plugging the inside screens of the dryer also creating a fire hazard.
See pre-season check list
Seasonal Inspection and Service
1.
IMPORTANT: The covers to the metering system access door(s) must be in place at all times when
the dryer is in operation. Before turning blowers always make sure this door is clamped into position.
1. Follow lubrication guides as outlined in the lubrication table.
2.
Do not let grain fines and dust accumulate inside the cooling section of the dryer.
Bi-weekly if
drying most products or daily if drying milo, clean the cooling chamber floor of fines and dust. Sweep
down the cooling section sheets if necessary. Fines can be swept into the unload systems.
3.
Do not let grain fines and dust accumulate inside the heat section of the dryer.
Daily check the
hopper divider that separates the heat section from the cooling section to ensure that it remains clean
and open.
4. When cleaning dryer, check the grain discharge area on the dryer. Check the metering sweeps for
trash or stalk build ups that could be obstructing grain flow.
5. If undried grain is left in the dryer for more than a week during the drying season, inspect the
plenum roof to make sure that there is no wet grain sticking to the roof that could restrict grain flow.
When the dryer is restarted make sure that all grain columns are evenly unloading.
