•Operator
• EDC control pod ( 8 )
• EDC control panel ( 2 )
• Linkage
• Lift arm potentiometer ( 7 )
• Load sensing pins ( 6 )
• Radar ( for slip control only ) ( 1 )
•
Outputs
• EDC valve ( 4 ) - controls CCLS pump via
sensing lines and diverts pressure oil to lift cylinders.
• Instrument cluster ( 3 ) - displays
linkage height, slip % and EDC errors.
•
•
Controls position of implement and / or regulates draft force on tractor by
raising / lowering implement into / out of work
Control
Panel
• Drop
rate control knob ( 1 ) - sets the speed of the implement lowering.
•
Height limit control ( 2 ) - sets the maximum height that the linkage will lift
to.
• Slip
limit control ( 3 ) - only available on
units with radar - uses EDC system to raise implement when slip exceeds the
value set by the knob.
•
Draft sensitivity knob ( 4 ) - Adjusts the level of tolerance of the EDC system
before the linkage is adjusted when using draft control.
Control
pod
• Lift
position control lever ( 6 ) - Sets
lower limit for working depth. Can be
locked with adjustable stop
( 5 ). If no draft load i.e. implement is out of the ground, the implement will be held at the position set by this lever ( see slide 6 ).
( 5 ). If no draft load i.e. implement is out of the ground, the implement will be held at the position set by this lever ( see slide 6 ).
•
Draft loading wheel ( 7 ) - “0” on wheel = minimum draft load
to “10” = maximum draft load.
This wheel sets the draft force for field operations ( see next 2 slides
)
• Fast
raise / lower switch ( 8 ) - Used to raise or lower linkage mounted implement
to the limits set by the lift arm position control lever and the height limit
control knob.
Dynamic
Ride Control
•
Allows EDC system to react to prevent implement bounce when travelling above
8kph
•
• Turn
drop rate knob fully anti-clockwise to transport lock position
•
Raise to maximum height using fast raise switch
1.Relief valve shim pack
2.Relief valve spring
3.Relief valve
4.Raise solenoid
5.Lower Solenoid
6.Sense line ‘Poppet’ check valve
7.Seal backup ring
8.O Ring seal
9.Valve body
10.Raise check / lock valve
1.
Load check valve
2.
Lift cylinder relief valve
3.
Lowering metering valve
4.
Lowering solenoid
5.
Raise solenoid
6.
Raise spool
7.
Flow compensating valve
Disassembly
• Pressure Relief Valve
•
Flow Control Valve
•
• STRONG SPRINGS in both of these valves. Take extreme care when removing end plugs.
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