Great Plains PT8030 Parts Manual - Manual (Page 7)

4
Assembly and Setup
PT6030 and PT8030 Pull-Type Planter 401-032Q 10/14/08
Great Plains Mfg., Inc.
16896
Marker Installation
1. Lower the planter to the planting position. Remove the
frame cap if applicable.
2. Block up the marker cylinders inside the frame tube so
the rod ends will not contact anything when extended.
3. Extend and retract the marker cylinders several times
to remove any air from the system and check that the
hydraulics are operating properly.
4. Assemble the first stage arms (1) onto the planter us-
ing the pivot pins that are wired into the marker
mounts (2). Secure pivot pins with roll pins.
NOTE: Assemble markers so shear pin (3) faces forward.
5. Assemble second-stage arms (4) onto the end of the
first-stage arms. To assemble, remove 1/2-by-3 1/2-
inch pivot bolt and nut (5) then secure second-stage
arm with pivot bolt and 5/16-inch shear bolt (3).
6. Assemble extension tubes (6) onto second-stage
arms.
7. Start tractor and slowly extend one cylinder 6 inches.
Shut tractor off. Pin the cylinder to the pivot link (7).
8. Tighten all hardware on the marker to specification.
Refer to
Torque Vales Chart, Appendix, page 7.
9. Start tractor and fold marker into the storage position.
10. Repeat steps 7 through 9 for other marker.