Great Plains V300 Assembly Instructions - Manual (Page 15)

Great Plains Mfg., Inc.
Installation Instructions 15
11/08/2006 148-771M
Attach Open-Center Hoses
This page is for the 148-766A Open-Center kit. If you
have the 148-765A Closed-Center kit, use page 14.
Refer to Figure 23. Although the valve assembly is complete at this
step, this figure is shown in exploded view to clarify bottom and rear
connections.
114. A. Select a 43cm hose (18) 811-702C,
(HH3/8R2 017 9/16FJIC).
Attach one end to the bottom port of the tee on the
bottom of adjustment valve (44). Attach the other
end to the bottom (center) port of the tee at the
rear lower port of bypass valve (48).
115. B. Select a 43cm hose (18) 811-702C,
(HH3/8R2 017 9/16FJIC).
Attach one end to the fitting on the bottom port (#3)
of the shuttle valve (46) on the rear of the bypass
valve (48). Attach the other end to the center/bot-
tom port of the tee on the rear upper port of bypass
valve (48).
116. C. Select a 43cm hose (18) 811-702C,
(HH3/8R2 017 9/16FJIC).
Attach one end to the ell on the rear port (#1) of
the shuttle valve (46) on the rear of the bypass
valve (48). Attach the other end to the fitting on the
bottom port (#3) of the shuttle valve (46) on the
rear of the adjustment valve (44).
117. D. Select the1.1m hose (20) 811-922C,
(HH3/8R2 045 9/16FJIC).
Attach one end to the bottom end fitting port of the
gauge tree (42). Attach the other end to the fitting
at the base end of the down pressure cylinder (42).
118. E. Select a 43cm hose (18) 811-702C,
(HH3/8R2 017 9/16FJIC).
Attach one end to the rear port (#3) of the check
valve (47) under the mounting bracket. Attach the
other end to the left-facing (center) port of the tee
in the middle of the gauge fitting tree (42).
119. F. Select the56cm hose (21) 811-926C,
(HH3/8R2 022 9/16FJIC).
Attach one end to the left port (#1) of the check
valve (47) under the mounting bracket. Attach the
other end to the fitting at the rod end port of the
down pressure cylinder (42).
120. Not shown:
Disconnect the “to tractor”/raise hose
➀
at the top
(base end) of the left lift cylinder
➁
.
G. Shown:
Connect the “to tractor”/raise hose
➀
to the fitting at
the front bottom port of bypass valve (48).
121. Select an ell (57) 811-171C,
(AD 9/16MORB 9/16MJIC).
Remove the existing ell at the top (base end) of the
left lift cylinder
➁
. Replace it with ell (57).
18
➀
Figure 23
Open Center Hoses
25131
44
48
42
21
47
17
➁
➂
➃
57
T
B
F
B
L
R
19
20
22
46
42
18
46
57
A
B
C
J
G
F
D
E
H
L
K