Grain Systems PNEG-1707 - Manual (Page 49)

PNEG-1707 TM-Series Tower Dryer 49
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 on Page 52 .
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.
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 on Page 51 .
Seasonal Inspection and Service
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.