Great Plains 3S-3000 Installation Instructions - Manual (Page 16)

Great Plains Mfg., Inc.
16 Open Center Hydraulic Kit
194-149M 09/05/2012
2S DD1162+ Check Valve Installation
Refer to Figure 18
94. Select two new:
811-636C AD 9/16MORB STRAIGHT UNION
Make sure the jam nut is fully threaded onto the
adaptor.
95. At the lower rear valve Port R of each pressure con-
trol valve , screw in the union end with the
integral hex nut (NOT the end with the jam nut).
Tighten to 9/16ORB specification.
96. Select two new:
810-343C VALVE PO CHECK 2:1 W/9/16FORB
Note: These valves are stamped 85050146 , and if
shaken gently, do not rattle.
(The third valve, assembled at step 106, is a shut-
tle valve, and does rattle.)
97. Screw Port 2 of each check valve onto the other
end of the adaptor installed at step 95. Turn until
finger tight, then back off until the side of the valve
with the hex head cartridge is Up and Port 3 is
down. Tighten the jam nut to 9/16ORB specification.
98. Select two new:
811-439C TE 9/16MORB 9/16MJIC 9/16MJIC
This is the symmetrical MJIC/MORB tee. There are
four of these in the kit.
99. Screw the MORB port of the tee into the rear
Port 1 of each check valve . Screw until finger
tight, then back off until the JIC ports are vertical.
Tighten the ORB jam nut to 9/16ORB specification.
100. Select the tee saved at step 92:
811-061C TE 9/16MJIC 9/16MJIC 9/16FJIC
Secure it to the bottom port of the tee on the
right (Center) pressure control valve. Orient the side
port to face left. Do not use pipe thread sealant on
these or any JIC fittings. Tighten to 9/16JIC specifi-
cation (see page 21)
101. Locate the disconnected hose:
811-631C HH3/8R1 018 9/16FJIC
Connect the free end to the bottom port of tee .
102. Locate the disconnected hose:
811-587C HH3/8R1 092 9/16FJIC
from the base end of the center cylinders.
Reconnect this hose
to bottom port of the tee
installed at step 100 on the right/Center valve.
103. Locate the disconnected hose:
811-587C HH3/8R1 092 9/16FJIC
from the base end of the wing (outer) cylinders.
Reconnect this hose
to bottom port of the tee
installed at step 98 at the left/Wing valve.
104. Select two new NPT swivel adaptors:
811-582C AD 9/16FJIC 1/4FNPT
and the saved gauges:
810-300C PRESSURE GAUGE 3000 PSI
Apply liquid pipe thread sealant to the gauge MNPT
threads and screw the adaptor
onto the gauge.
Tighten to 1/4NPT torque specification (see
page 21).
105. At each valve, screw the JIC end of the gauge
assembly onto the top port of the new tee .
Orient the gauge to face forward, and tighten the
JIC connection to JIC torque specification.
BASE END
, WING OPENERS
BASE END
, CENTER OPENERS
120 0
1200
600
600
0
0
3000
300 0
1800
1800
2400
2400
psi
psi
ROD END
, CENTER OPENERS
ROD END
, WING OPENERS
P
G
T
R
R
G
P
T
1
3
2
2
3
1
WING
CENTER
1
3
2
55
FigureSpacer
Figure 18
Install 2S DD1162+ Check Valves
27492
23
23
52
52
16
16
61
61
20
20
22
51
U
D
F
B
L
R
22
51
54
62
23
52 23
16
16
23
20
20
16
55
20
62
55
61
61 55
61
61 20
22
51
22
22 20