Gason 1200 Series User manual

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1200, 1700 & 1800 SERIES AIR SEEDER
OPERATOR’S MANUAL
Fitted with Series 1 Meterbox
Covering the 1220/30/40/50, 1730/50 & 1830/50 Models
GPN 207838 REVISION B 01/23

Page Intentionally Blank

CONTENTS
11/09
Warranty Form
Introduction........................................................
1
General Information...........................................
3
Safety ................................................................
6
Specifications.....................................................
8
Conversions.......................................................
12
Bolt Specifications .............................................
13
Ordering Parts ...................................................
14
Spare Parts Record ...........................................
15
Assembly Instructions........................................
16
Seeder & Implement Hitch Fitment............
16
Distribution System....................................
20
Pre-Delivery Checklist................................
23
Transporting.......................................................
25
Operating the Air Seeder...................................
26
Monitor Operation......................................
27
Ground Drive Model
Monitor Operation......................................
28
Calibration..................................................
30
Method A (simple).............................
30
Method B (preferred).........................
33
Method C (Wheel Circumference).....
34
Calibrating a 3 Bin Seeder ................
36
Variator Setting Guide.......................
37
Calibration Handle Turns...................
52
Area Rate Chart ..............................
53
Converting lb/acre to kg/ha ...............
54
Planting Details Reference................
55
Meter Drive System...........................
57
Variator Gearbox...............................
57
High sprocket Ratio...........................
59
VRT Hydraulic Drive Model
Monitor Operation......................................
60
Monitor Setup ............................................
64
Manual Override ........................................
67
Calibration..................................................
70
Sprocket Selection Guide..................
74
Planting Details Reference................
85
Maintenance ..............................................
87
Trouble Shooting........................................
89
Metering System
4 Outlet Meterbox ......................................
92
Reducing the Outlets............................
93
Low/High Rates....................................
93
Large Seeds Manifold Plate..................
93
Deep Banding.......................................
94
Wide-Row Cropping .............................
94

CONTENTS
11/09
6 Outlet Meterbox.......................................
96
Reducing the Outlets ............................
97
Low/High Rates.....................................
97
Deep Banding.......................................
98
Triple Shooting......................................
98
Partial Diversion....................................
98
Removing Meterewheels............................
100
Fitting Low Rate Sleeves............................
101
Fitting Large Seeds Manifold Plate ............
102
Blocking Air Flow........................................
102
Metering Oats.............................................
103
Hydraulic System...............................................
104
Tractor Requirements.................................
104
Hydraulic Connections ...............................
105
Disconnecting the Hyd. Hoses...................
106
Filter Maintenance......................................
107
Blower Capacity.................................................
108
Blower Speed.............................................
110
Maximum Application Charts......................
112
General Maintenance.........................................
116
Trouble Shooting................................................
119
Optional Attachments.........................................
123
Auger Operation.................................................
124
Storage and Cleaning ........................................
126

INTRODUCTION
Page 1
11/09
A.F. Gason Pty Ltd is an Australian
owned family business operating from within
rural Victoria. The Gason companyhas been
servicing the needs of rural Australians for
more than 60 years. We operate through a
local dealer support network that spans the
country. A.F. Gason’s would like to thank
you for purchasing your Australian made Air
Seeder, and trust that you will have many
years of trouble free service.
The Air Seeder’s have been designed
to be functional, practical and reliable. They
incorporate the latest technology in air
seeder design but retain their basic
functionality to ensure ease of maintenance.
The Gason range of Air Seeders can
perform a variety of seeding operations and
are available in either a front tow (FT), rear
tow (RT) or implement mounted (IM) models.
There are a number of bin capacities
available with either 2 or 3 bin
configurations. A large range of sowing
outlet configurations are available, making
the Air Seeder adaptable to a variety of
implements to perform different tillage
practices.
The Gason Series 1 metering system
is a positive and accurate method of placing
seed and fertilizer into the air stream. The
system is capable of sowing conventionally,
often referred to as single shooting (seed and
fertilizer together), deep banding (separating
the seed and fertilizer) or triple shooting
(handling 3 separate products through to the
implement). The system can also sow
summer and winter crops with minimal
adjustment.
This manual endeavors to provide the
owner with a complete understanding of the
Air Seeder’s operation and the processes
required to obtain the highest level of
performance possible. It is suggested that the
owner/operator read this manual and any
other literature that has been supplied with
your machine to ensure a safe and trouble
free operation.
References to the left and right hand sides of
the Air Seeder are from the rear of the
machine looking forward.
1090t
Fig. 1 1850RT Series Air Seeder (optional rear hitch fitted).
While every effort has been made to ensure the accuracy of the
information in this manual, A. F. Gason Pty Ltd reserves the right
to delete, change or add information without notice.