Great Plains 6548 Series VII Field Cultivator-Rigid Hitch Operator Manual - Manual (Page 23)

Great Plains Mfg., Inc. Table of Contents ►
Section 1: Assembly
1/20/2005 Series VII 6330-6548 Field Cultivator, Rigid Hitch 560-203M
21
Center Lift Cylinder, Bolt On Stubs and Hydraulic Valves Assembly
Connect the two 3 1/2 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 3 1/2”
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
5 1/2 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 1/2 flat washer and 1/8 x 1 cotter pin.
Bolt the depth stop assembly (9) onto the
depth stop tube (8) with two 1/2 x 2 1/2 hex
bolts (10) with 1/2 lock washers and hex nuts..
U-bolt the center 11” u-bolt on stub
(11) to the center brace bar with two 5/8 x 4 x
4 1/4 u-bolts (12) with lock washers and hex
nuts (see shank layout drawing for proper
placement).
U-bolt the 3 1/2” or 4” cylinder rest
pads (13) on the center bar as shown, using a
1/2 x 3 x 5 u-bolts (14) with lock washers and
hex nuts (see shank layout drawing for exact
placement). On double fold models, u-bolt the
3 1/2” cylinder rest pads (15) on the back bar
using a 1/2 x 3 x 5 u-bolts (14) with lock
washers and hex nuts.
Figure 8
10/27/2005