Tufline GB Series, Operator'S Manual

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Connecting Greader Blades
The grader blade compatible with tractors equipped
with Category 1, 3-point hitch systems that use
side-swing type lower lift arms. The land planes
will also fit tractors equipped with an Category 1
Quick Hitch system.
Category 1 Standard 3-Point Hook-up
1. Attach the tractor’s lower lift arms to the land
plane on the lower draft hitch pins. Re-install the
lynch pins.
2. Attach the tractor’s top link to the land plane’s
A-Frames, using the heavy-duty top link pin and
lynch pin supplied, with the top link to the upper
top link pin hole.
Category Quick Hitch (Figure 1)
1. Connect the tractor’s Quick Hitch by guiding the
top hook through the lower top link pin with bush-
ings.
2. Install bushing set (sold separately), Number
BW15056, or equivalent, to lower draft pins. These
bushings allow the hooks on the Quick Hitch and
the pins on the grader blade to fit together prop-
erly. Slide sleeve shoulder bushings over draft
pins. Secure each shoulder bushing with roll pins.
3. Upper bushing should already be installed to
the top link.
9 Operation
Adjusting GB1
ANGLE
To adjust the angle, remove the pivot pin, Ref. 1,
Fig.1 , and rotate the moldboard until the desired
angle is reached. Replace the pivot pin to lock the
angle setting.
TILT
There are two tilt to positions of 15" amd 30"
to both the left and right. Remove the tilt pin,
Ref. 1, FIG. 1A. Pull or push on the edge of the
moldboard in order to rotate it up, and down.
Replace the pin when tilt angle is reached and
secure it with the hair pin cotter, Ref. 2.
OFFSET
The GB1 series grader has 2 manual offset posi -
tions on both the left, and right side. To get maxi-
mum offset, remove the adjusting bar pin, Ref 3. ,
Figure 1A, and slide lateral adjusting bar, Ref. 4,
out of the reciever, Ref. 5, until the adjusting pin
can be replaced in the last whole position. This
should allow approximately 17 1/2" of offset.