Great Plains 6548 Series VII Field Cultivator-Floating Hitch Operator Manual - Manual (Page 24)

Section 1: Assembly
Table of Contents ► Great Plains Mfg., Inc.
Series VII 6330-6548 Field Cultivator, Floating Hitch 560-205M 11/22/2005
22
Center Lift Cylinder, Rest Pads and Hydraulic Valves Assembly
Connect the two 3 1/2 x 8 main lift
cylinders (1) to the center frame as in Figure 9.
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 (8) with
lock washers. Insert the depth stop tube (9)
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 (10)
to the depth stop tube (9) with two 1/2 x 2 1/2
hex bolts (11) using 1/2” lock washers and hex
nuts.
U-bolt the 3 1/2” cylinder rest pads
(12) on the back bar, if applicable, using a 1/2
x 3 x 5 u-bolt (13) with lock washers and hex
nuts. U-bolt the 3” or 4” cylinder rest pads
(14) on the center frame as shown, using a 1/2
x 3 x 5 u-bolt (13) with lock washers and hex
nuts (see shank layout drawing for exact
placement).
Figure 9