Great Plains NTA3007HD Operator Manual - Manual (Page 114)

110 NTA907HD or NTA3007HD
166-207M 04/04/2011
Removing Meter Box
Removing the meter box exposes 18x18cm (7x7in) holes
through which stubborn material may be extracted.
Refer to Figure 113
1.
Not shown: Loosen the gearbox-to-meter chain idler
and remove the chain. Disconnect inlet and outlet
hoses. Disconnect or remove the seed rate sensor.
2. Loosen all the nuts securing the meter box to
the hopper bottom plate . Unscrew the nuts to the
bolt ends, but do not completely remove the nuts.
3. The meter box has a bead of silicone sealant
between it and the bottom plate. Use a pry tool to
free the meter box from the bottom plate.
4. Once hanging entirely on the loose bolts, remove the
nuts and lower the meter box from the hopper.
When re-mounting the meter box, scrape off the old sili-
cone sealant and replace it with fresh sealant.
Hopper Entry
Normal use of the hopper and routine maintenance do
not require entry. The hopper vent tube structure
includes features to aid emergency egress. It is not
intended for routine entry. However, do not remove the
vent tube structure, as it is required for pressure-balanc-
ing the space above the material.
▲ A hopper that is full or merely appears full can be an
entrapment hazard. You can sink entirely into the grain, or
into a void, and suffocate in a matter of seconds. Grain
bridges and crusts are especially dangerous.
▲ You can be overcome by hazardous fumes very quickly even
in an empty hopper with the lid open.
▲ A partially full hopper, even with no bridging present, is a
suffocation risk.
Oxygen levels may be insufficient and/or
dust levels may be too high for breathing.
▲ Do not enter a hopper for loading material.
▲ Do not enter a hopper for unloading material.
▲ Do not enter a hopper for routine cleaning.
▲ Do not enter a hopper for any meter maintenance.
▲ Never enter a hopper without at least one trained and
equipped attendant present.
▲ Never enter a hopper for any reason unless you fully com-
ply with applicable laws, regulations, rules, agreements,
and the instructions in this section. Where applicable laws,
regulations, rules, agreements contradict an instruction
below, do not follow that instruction.
Null4:
Figure 113
Remove Meter for Cleaning
29341
1
2
3
1 2
3
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Rapid Suffocation Hazard:
Encrusted grain may be loose and flowing beneath the crust.
Any hollow spaces are highly likely to have insufficient oxygen
and/or toxic gases from microbial action. Falling through a
crust in either case can result in death in a matter of seconds.
Never enter a hopper to dislodge a crust or bridge.