GREAT PLAINS SPARTAN II, Operator'S Manual, Page: 32 / 131

Spartan
II
607 Table of Contents Index Preparation and Setup
Great Plains | 166-486M | 2020/10/08 25

Fold Assist Valve (S/N C1009F-)
Before the first folding operation, check the
adjustment of the fold assist counterbalance valve.
The fold assist counterbalance valve (1) controls the
speed of the fold assist cylinders.
The fold assist counterbalance valve is located in the
top of the implement frame.
1. Loosen the jam nut (2) on the valve stem (3).
2. Turn the valve stem all the way in.
3. Turn the valve stem out six full turns.
4. Prevent the valve stem from turning and tighten
the jam nut.

Marker Setup
Before first use, set or review marker extension and
tension. See “
Marker Adjustments
” on page 67.
Before each planting session, check and adjust. See
“
Marker Adjustments
” on page 67.

Distance from Center of Gravity
Observe the total weight, axle loads, tire load-bearing
capacity and minimum ballast specifications.
The front or rear attachment of machines must not
cause the tractor’s permissible total weight, its
permissible axle load, or its tire load-bearing capacity
to be exceeded. In order for steering capability to be
maintained, the front axle must bear at least 20% of
the tractor’s unladen weight.
By investing some effort in making the calculations,
you can determine the:
 total weight

axle load
 tire load-bearing capacity

minimum ballast
For this calculation, the following data is required:
Data from the tractor’s operator manual:
 (A) Unladen weight in kg.

(B) Front axle load in kg.
 (C) Rear axle load in kg.
Take into consideration any further weights, such as
water in the tires, additional equipment, etc.
Data from this operator manual:
 (D) Total weight of the machine in the rear
attachment.
For hitched machines, the
supporting load in kg.

(E) Total weight of the machine in the front
attachment in kg.

(F) Distance between the machine’s center of
gravity in the front attachment and front axle
midpoint in m.
 (G) Distance between the lower link ball midpoint
and the machine’s center of gravity in the rear
attachment in meters. With hitched machine:
G=5.506 meters.
Data to be measured:

(H) Tractor’s wheel base in meters.
 (I) Distance between the rear axle midpoint and
the lower link ball midpoint in meters.
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