2s-2600hd and 2s-2600 dd1162+ installation, 2s dd1162+ control valve disassembly, Warning – Great Plains 3S-3000 Installation Instructions User Manual
Page 15
Great Plains Mfg., Inc.
2S-2600HD and 2S-2600 DD1162+ Installation
15
09/05/2012
194-149M
2S-2600HD and 2S-2600 DD1162+ Installation
Step 88 through step 129 are for 2S-2600 drills serial
number 1162 or higher. For 2S-2600 drills serial number
DD1161 and lower, installation instructions begin on
page 9. For 3S-3000 and 3S-4000 drills, installation
instructions begin on page 3.
DD1162+ drills (which includes all 2S-2600HD models)
have a counterbalance valve (
in the Affected Parts list
on page 23), under the Center valve, for opener lock up.
DD1161- drills have a counterbalance valve (Affected
Part
).
2S DD1162+ Control Valve Disassembly
!
WARNING
High pressure fluid hazard. Pressurized fluid may still be
present. Escaping fluid under pressure can penetrate the skin,
causing serious injury. Wear protective gloves and safety
glasses or goggles when working with hydraulic systems.
Crack fitting slowly. Use a piece of paper or cardboard, NOT
BODY PARTS, to check for suspected leaks. If an accident
occurs, seek immediate medical assistance from a physician
familiar with this type of injury.
Refer to Figure 17
88. At each pressure control valve
, remove and
save:
810-300C PRESSURE GAUGE 3000 PSI
These gauges are re-installed at step 104.
89. At the top rear Port G of each pressure control valve
, remove:
811-677C AD 9/16MORB 1/4FNPT
These two adaptors are not re-used.
90. Select two new:
Install these plugs in the top rear valve holes previ-
ously occupied by the gauge adaptor. Tighten to
9/16ORB specification (see page 21). Do not use
pipe thread sealant on these, or any ORB fittings.
91. At the rear lower Port R of each valve
nect the hose to the cylinder base ends:
These hoses are re-connected to new fittings at
step 102. Note which hose is which (by where it is
routed to), so that it can be reconnected to the cor-
rect (same) valve assembly after the new valves
and fittings are installed.
92. At the tee:
811-061C TE 9/16MJIC 9/16MJIC 9/16FJIC
Identify the hose:
from Port 3 of counterbalance valve
. Disconnect
the hose at tee
. Remove and save the tee. It is
93. Remove two:
These adaptors are not re-used.
WING
CENTER
1200
0
3000
600
2400
psi
1800
ROD END
, CENTER OPENERS
ROD END
, WING OPENERS
1200
600
0
3000
1800
2400
psi
P
G
T
R
G
R
T
P
2
3
FigureSpacer
Figure 17
Disassemble 2S DD1162+ Valves
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