Great Plains PT1230 Predelivery Manual - Manual (Page 8)

5
Section 1 Assembly
10/14/08 PT1230 Folding Pull-Type Planter 401-072M
Great Plains Mfg., Inc.
11. Mount marker gauge wheel on second-stage arm
near the joint with the third-stage arm. U-bolt the
wheel to the front marker tube as shown.
IMPORTANT: Mount the marker gauge wheel so it is
square with the ground–not square with the marker
tube.
Figure 1-9
Mount Marker Gauge Wheel
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12. Lubricate all grease points.
13. Adjust width marker. Measure 30 feet from the center
line of the planter to the marker blade.
14. Slowly fold markers and observe the link control (1).
When properly adjusted, the link will have the angle
shown in Figure 1-10. The link should not sag. If the
link is improperly adjusted, the third-stage arm will not
rest on the marker stop or the folded markers will not
clear each other when the planter is folded.
1
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Figure 1-10
Link Control Properly Adjusted
15. If necessary, adjust the link. To adjust, remove the
connecting pin (see Figure 1-8, 9) and turn the eye
bolt to shorten or lengthen the link.
!
DANGER!
Never allow anyone near the planter when cycling the markers.
Excessive travel speed of the markers can be dangerous and/or
damage the marker assembly.The flow controls should be prop-
erly adjusted before the marker assembly is first put into use.
Refer to Figure 1-11.
16. Adjust marker speed. The markers have needle
valves in the body of the sequence valves to control
how fast each marker operates. There are two adjust-
ment heads–one for controlling marker speed up and
one for controlling marker speed down.
With oil warm and the tractor engine at an operating
speed, adjust the needle valve to limit the marker to a
safe operating speed. To adjust, loosen jam nut, screw
the needle valve clockwise to a low setting. Excessive
folding speeds can cause marker damage.
Figure 1-11
Flow Control Raise and Lower
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IMPORTANT: JIC fittings do not require high torque.
JIC and O-Ring fittings do not require sealant. To
avoid possible danger of cracking hydraulic fittings
from over tightening, do not use plastic sealant
tape.
17. Fold the marker up and down a few times and recheck
for pinching and kinking of hoses.
U-Joint Assembly
Connect drive shaft by removing keeper pin on one end of
the drive shaft. Slide drive shaft together and reinstall
keeper pin.
Point Row Clutch
Refer to operator’s manual to install the control box for the
point row clutches.