Great Plains P15844 Serial No 18008015 - Manual (Page 13)

13 ST-Bar
Operating Instructions
3. Adjustment/Operation
Adjustment / Operation
1. Front 3 Point Linkage
2. Rear 3 Point Linkage Toplink Adjuster
3. Rear 3 Point Linkage Hooks
4. Terra-Grip Tines
Fig. 3.01: ST-Bar
3.1 Description
The SIMBA ST-Bar is designed to be used in
conjunction with a 2.5m, 3m or 4m Mounted
X-Press. The Toolbar provides effective tine
cultivation ahead of the disc blades of the X-
Press.
Terra-Grip tines have a robust, basic
construction and are suitable for all soil types.
The spring-loaded auto-reset system with a
500kg trip force on each tine prevents damage
to the tines and tine brackets.
When the auto reset system is activated an
initial progressive phase holds the tine in the
ground in a steady position until the trip point
is reached. In the subsequent spring
compression phase the tine is raised gently
and rapidly to a maxmum height of 230mm.
The tines can be fitted with a selection of points
depending on application and have 6 depth
settings in 25mm increments.
The clip-on points are attached to the tine with
a quick release mechanism. A wedge
shaped bracket is bolted on to the tine and a
hammer is used to force the coulter on/off the
taper using the removal tool provided to
disengage the quick release system.
The quick release mechanism makes it
possible to change the points quickly and
easily without having to use any other tools.
The quick release system consists of a
wedge, plunger and a rubber spring.
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4
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