Great Plains Disk Harrow Field Update Disk Leveler - Manual (Page 2)

Installation Instructions Great Plains Mfg., Inc.
SeriesI 3323DH-4336DH Leveler Update 557-330M 2/05/2008
2
Disassembly Instructions
Start by unfolding the wings and removing the manual transport locks, if installed, from lift
cylinders and lower the machine to the ground. If machine is equipped with hydraulic leveling,
activate leveling cylinder (1) until the leveler “L” (2) and level bar assembly (3) is loose (see
Figure 1). Attach the tongue jack (4) to front of hitch and unhook tractor from disk. Remove all
the hydraulic hose components from the hitch including the hoses, hose clamps, spring hose loop
(5), lock valve (6), if equipped and 4” x 2 leveling cylinder (1), if equipped.
Remove the manual pak container (7), manual level turnbuckle (8), if equipped, safety chain
(9), safety chain support (10) and hitch clevis (11) from the hitch frame (12). Do not re-use the
1x7 Gr.8 hitch clevis bolts, new longer bolts are provided in the kits. Save all other hardware for
re-assembly to new hitch frame.
Remove the hitch frame (12) by removing the two 1 ¼ x 8 Gr.8 hex bolts (13) that connect it
to the center frame. Save the hardware for re-assembly. Remove the Leveler “L” (2) from the
center frame, and discard the 1” x 7 hex bolt, 1 x 7 pin, level gauge pointer (14) and level link
rod (15). On narrow center models, 3323 to 3329, you will have to unbolt the depth stop valve
from the center frame to remove the 1” x 7 Leveler “L” bolt. You may re-attach the valve after
the bolt is removed.
Disconnect and remove the level bar assembly (3) from the torque tube (16). Keep level bar
assembly (3), 1 x 7” pin (17) and keeper bolt (18) for re-assembly.
On models 3326 to 4336, unpin and remove the front two fold cylinders (19), attach a piece
of hose between cylinder fittings to prevent oil from escaping from the cylinders. Remove the
front fold bracket (20) by removing the ¾ x 2 ½ hex bolts (21), save bolts for re-assembly.
Disconnect any hydraulic hoses that are in the way for removal of the front fold bracket.
On 4330 to 4336 machines, unbolt and remove the top and bottom front tie strap plates (22)
that hold the two center frame halves together. Save for re-assembly.
Finished with Disassembly. Proceed to Torching Instructions pg. 4.