Great Plains P15061 Serial No 12682 - Manual (Page 24)

Solo
Operating Instructions
24
4.6 Terra-Grip Tines
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.
On 380 models the tine beam has two
settings, work and transport. In order to
change between the two remove the locking
handle (A on Fig. 4.07) and swing the gang
round (B). The locking handle can then be
wound onto the protruding bolt in order to
tighten the assembly for work.
4. Adjustment / Operation
Fig. 4.06: Terra-Grip Tines
Fig. 4.07: Folding Tine Beam on 380 Models