Great Plains 2S-2600HDF Predelivery Manual - Manual (Page 30)

28 2S-2600HD Great Plains Manufacturing, Inc.
195-069Q 08/01/2007
Markers
Markers are not factory-installed, due to vertical clear-
ance requirements during shipment. An installation
manual is provided, but does not include details for
installation where a Two-Outlet Kit is also present. If a
Two-Outlet kit is installed, observe these tips:
• The Marker/Fold valve mounts on the second valve
bracket.
• Use the longer bolts in the Two-Outlet kit to stack the
hose clamps. Place the clamp hold-down on the top
clamp.
• For consistency of operation, be sure to plumb the
Fold circuit to the forward ports of the Marker/Fold
valve, and plumb the Marker circuits to the rear.
Handle forward is then Transport operations (Fold),
and handle back is then Field operations (Marker).
Consult the drill Operator’s manual for setting initial
marker extension length, and the latest information on
chain length and stop bolt adjustment.
Bleeding Marker Hydraulics
!
CAUTION
You may be injured if hit by a folding or unfolding marker.
Markers may fall quickly and unexpectedly if the hydraulics
fail. Never allow anyone near the drill when folding or unfold-
ing markers.
1. Review warnings, bleeding notes and system infor-
mation on page 20.
Refer to Figure 34
2. With markers unfolded in field position, crack hydrau-
lic-hose JIC fittings
at base and rod ends of each
marker cylinder.
3. With tractor at idle speed, activate tractor hydraulic
valve forward until oil appears at a fitting. When oil
begins to seep out around a fitting, tighten that fit-
ting. Reverse the tractor hydraulic valve until oil
appears at opposite hose fitting. Tighten that fitting.
4. If you have dual markers, activate tractor hydraulic
valve forward again until oil seeps out around a fitting
on the other marker cylinder. Tighten that fitting.
Reverse tractor hydraulic valve until oil seeps out
around remaining hose fitting and tighten it.
5. Fold and unfold markers slowly to work out all air.
Note: Use caution when folding and unfolding markers
for the first time, checking for pinching and kinking
of hoses.
Figure 33
Marker
26493
Figure 34
Bleeding Marker Hydraulics
18942
1