Assembly – Great Plains 2SNG30 Assembly Instructions User Manual
Page 4
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Two-Section, Hydraulic Folding Marker 113-329M
8/21/06
Great Plains Mfg., Inc.
Assembly
2.
Attach the selector valve mount (15); to drill main frame us-
ing 3/8-by-1-inch bolts (14), lock washers (11), and hex nuts
(10).
3.
Attach the selector/sequence valve (6) to the selector valve
mount (15) using 3/8-inch bolts (13), flat washers (12), lock
washers (11), and hex nuts (10).
4.
Route hoses from the selector/sequence valve down the
transport frame tube. Check hose routing for pinching and
kinking of hoses and securely attach with plastic cable ties
(16).
5.
Attach hoses to cylinder ports. Be certain to check for cor-
rect port location back to the sequence valve.
6.
Detach existing tractor hoses (8) from wing cylinders. At-
tach 17-inch hose (9), and 42-inch hose (5), and tractor
hoses (8), to selector/sequence valve (6) and wing cylin-
ders. Assemble remaining hoses as indicated.
7.
Bleed marker hydraulics as explained under Bleeding
Marker Hydraulics, page 5.
8.
When ready to fold wing boxes for transporting, divert oil to
the fold cylinders by positioning the handle on the selector/
sequence valve toward the port marked "G".
NOTE: Folding speed of the dual markers is regulated by an in-
ternal orifice in the sequence valve which is sized for proper op-
eration of the valve spool. Do not try to adjust or alter this orifice
size. This will cause failure of the sequence valve.
Figure 1
Dual Marker Hydraulics
10056