Great Plains 7344 Series VII Field Cultivator-Rigid Hitch Operator Manual - Manual (Page 22)

Section 1: Assembly
Table of Contents ► Great Plains Mfg., Inc.
Series VII 7332-7344 Field Cultivator, Rigid Hitch 560-198M 1/31/2005
20
Center Lift Cylinder, Bolt on Stubs and Hydraulic Valves Assembly
Connect the two 3½ x 8 main lift
cylinders (1) to the center hitch pole as in
Figure 8. Connect the rod ends to the lugs on
the H-bracket. Place a 1” flat washer on each
side of the lug on the H-bracket to keep the
hardened bushings from coming out.
Secure the cylinders with 1 x 3½”
clevis pins (2), 1” machine washers and 3/16 x
2 cotter pins. Mount the rebound valve (3) as
shown with the V1 port to the front and top
using two 5/16 x 4 hex bolts (4) with lock
washers and hex nuts.
Install the depth stop mounting bracket
(5) to the center brace bar using two 5/8 x 3 x
5½ u-bolts (6), lock washers and hex nuts.
Bolt the depth stop valve (7) on top of the
bracket using the 5/16 x 2” hex bolts with lock
washers. Insert the depth stop tube (8) into the
mounting bracket (5) and attach to the level
bar with ½ flat washer and 1/8 x 1 cotter pin.
Bolt the depth stop assembly (9) onto the
depth stop tube (8) with ½ x 2½ hex bolts (10)
with ½ lock washers and hex nuts.
Bolt the center offset stub (11) to the
center frame with four 3/4 x 2 bolts (12) with
lock washers and hex nuts. U-bolt the 7”
offset stubs (13) to the center frame, as shown
in figure 8, using two 5/8 x 4 x 4¼ u-bolts (14)
with lock washers and hex nuts (see shank
layout drawing for proper placement).
U-bolt the 3” cylinder rest pads (15) to
the center frame using a ½ x 3 x 5 u-bolt (16)
with lock washers and hex nuts (see shank
layout drawing for exact placement).
Figure 8