Great Plains 401-516A Installation Instructions - Manual (Page 5)

12/28/2007 401-514M
Great Plains Manufacturing, Inc. Introduction 3
Introduction
Description of Unit
These kits update older hoppers to the current pneu-
matic configuration, which includes a vertical pipe to
equalize pressure at the top of the hopper and at the
base of the seed mass. This allows the hydraulic fan to
run at higher speeds, and provides more consistent seed
flow at all pressures and seed delivery rates.
Document Family
401-514M Installation Instructions (this document)
Also update your Operator and Parts Manuals for correct
information on fan operations with updated hoppers, and
current replacement part data.
The information in this manual is current at printing.
Some parts may change to assure top performance.
Kits Covered by this Manual
Each kit updates one hopper.
Hoppers Which May Be Updated
Inspect the hopper before ordering a kit. Only hoppers
manufactured prior to late 2007 support this update kit.
Hoppers made after that date have the vent tube compo-
nents as standard equipment.
Part
Number Description
401-508A YP 82 BU AIR RELEASE FLD KIT
401-516A YP 150 BU AIR RELEASE FLD KIT
Part
Number Description Use Kit
403-143K 82 bu, latch on left side 401-508A
403-226K 82 bu, latch on right side 401-508A
403-174K 150 bu, latches to center 401-516A
Figure 1:
403-143K Hopper
37353
R
L
U
D
L
R
B
F