Hydraulic Connections Recommendations

A64361-UN-11MAR09
Extend Symbol

A64362-UN-11MAR09
Retract Symbol
Extend and Retract symbols are on SCV cover.
Refer to tractor operator's manual for specific hydraulic operational
details.
IMPORTANT: Case drain hose MUST be attached PRIOR to any hose
being connected.
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Hose Connections1
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Function Settings
For John Deere Tractors
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Hose Identification
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SCV
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Pressure
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Return
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Flow
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Detent (Time)
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Lift Assist Wheels23
(If Equipped)
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I
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Extend
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Retract
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Start at 5 and adjust as necessary
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10 seconds or as required for full extend and retract
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Independent Markers
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II
or
III
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Extend
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Retract
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10 Maximum
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10 seconds or as required for full extend and retract
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CCS System
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III
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Retract
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Extend
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10 Maximum
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Constant “C”
CCS level controlled with CCS valve
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Wing Fold
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III
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Extend
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Retract
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Start at 5 and adjust as necessary
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10 seconds or as required for full extend and retract
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Vacuum System (Connected to one SCV)4
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IV
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Retract
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Extend
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Adjust to obtain desired vacuum level
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Constant “C”
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Variable Rate Drive on SCV
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V
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Retract
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Extend
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10 Maximum
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Constant “C”
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Variable Rate Drive on Power Beyond with Load Sense5
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Power Beyond Pressure
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Power Beyond Return
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CAUTION: Hydraulic hoses can fail due to physical damage, kinks,
age, and exposure. Check hoses regularly. Replace damaged hoses.
IMPORTANT: Vacuum and Variable Rate Drive RETURN hoses, with
special tip, MUST be connected to tractor EXTEND port. Avoid damaging
pressure spikes; shut vacuum motor and variable rate drive off by
placing SCV lever in “Float” position.
16R Non-Lift Assist Wheel planters, connect the wing lift (gullwing) pressure hose to the hitch port,
or an unused SCV. SCV must be placed in “Float” position.
7000 and 8000 Series Tractors:
A diverter valve is available to connect independent markers
and wing fold on one SCV.
SeedStar™ system is used to control variable rate drive
(if equipped).
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1 Case drain
hose MUST be attached PRIOR to any hose being connected.
2 For single
lever control of lift assist and hitch, see specific procedures in
this section.
3 1720 CCS machines lift assist wheels must not
be connected to hitch.
4 With two or more vacuum motors connected to
a single tractor SCV, external planter flow control valves must be
used to control vacuum level.
5 If planter is not equipped with independent
markers or vacuum, variable rate drive can be moved from power beyond
to an SCV.
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OUO6064,00004E6-19-20110526
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