Great-plains YP1220 Operator Manual User Manual download pdf (Page 38)

34 YP1220 Great Plains Manufacturing, Inc.

401-506M 03/14/2012

Airbox Troubleshooting

Problem Cause Solution

Single row doesn’t ﬁll or keep up with

other rows.

Y tube is bent/angled off feed

pipe.

Loosen pipe and spin so the bend is

straight down and Y-tube is not point-

ing to front or rear of air pipe.

Drop tube to meter is too long,

causing seed to pool and plug

hose or Y-tube.

Shorten hose (with planter raised, but

row units lowered, to ensure hose is

not too short).

Both rows on one meter outlet low or

not keeping up with other rows.

Note: This is more likely to occur on

end outlets.

Blockage in air slot in top of air-

box.

Clear by using a long skinny tool and

taking hose off through hose outlet.

It may be necessary to take top off air-

box to clear junk from slot.

Bad hose routing between deliv-

ery hose and airbox on wing.

Correct hose routing.

Multiple rows fail for lack of seed. Fan speed too high/too low. Check/adjust fan speed.

Out of seed. Add seed.

Single or multiple hoses plugging just

ahead of airbox.

Fan speed too high/too low. Check/adjust fan speed.

Possible air leak. Check for air leak downstream

between box and top of meter.

All rows fail. Lack of seed. Fan speed too high. Adjust fan speed.

Extremely high populations may

require slightly reduced ﬁeld speed.

1, 2, 3, or more outlets fail.

Outlets can be side-by-side or random.

Plugging may also move from one out-

let to another.

Foreign matter in seed chamber

in bottom of airbox.

Clean out seed chamber.

Little or no seed to a lot of rows with

heavily treated seed.

Seed treatment sticky. Add talc to seed to dry out seed treat-

ment.

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Great-plains YP1220 Operator Manual User Manual Page 38

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