Maintenance
C2 Contour Air Drill August 2014 6-5
HIGH-PRESSURE FLUID HAZARD
To prevent serious injury or death:
• Relieve pressure on hydraulic system before
servicing or disconnecting hoses.
• Wear proper hand and eye protection when
searching for leaks. Use wood or cardboard
instead of hands.
• Keep all components in good repair.
Warning
Opener Maintenance
Bushing Replacement
In the event the pivot pin bushings need replacing, use
the following procedure.
• Turn “Operating” valve out to bleed off/service position
and relieve all pressure from the accumulator circuit
using the tractor remote.
• Shut tractor engine off and ensure park brake is
engaged before proceeding.
• Place “Openers” ball valve into locked position to
prevent accidental oil ow to openers.
• Once the pressure is off of the accumulator circuit,
opener can be disassembled as illustrated in diagram
on the following page.
Reverse the above procedure to reassemble trip.
Note: Bleed air from hydraulic circuit before using
unit. Refer to “Bleeding Hydraulic System”
for details.
Cylinder Replacement
In the event the opener cylinder needs repair or
replacing, use the following procedure.
• Turn “Operating” valve out to bleed off/service position
and relieve all pressure from the accumulator circuit
by placing the tractor remote in “oat” position.
• Shut tractor engine off and ensure park brake is
engaged before proceeding.
• Place “Openers” ball valve into locked position to
prevent accidental oil ow to openers.
• Once the pressure is off of the accumulator circuit,
disconnect hydraulic hoses from opener cylinder.
• Refer to diagram on following page to remove the
pins from the opener cylinder.
• Remove the cylinder. Repair or replace cylinder as
necessary.
Reverse the above procedure to reassemble trip.
Note: Bleed air from hydraulic circuit before using
unit. Refer to “Bleeding Hydraulic System”
for details.
CRUSHING HAZARD
To prevent serious injury or death:
• Stand clear - openers move rapidly under
hydraulic pressure.
• Place valve in service position.
• Relieve pressure on hydraulic system before
servicing.
• Lower openers to ground before adjusting
depth.
• Shut tractor off and remove key.
Warning
Pressure Gauge
OPERATING
VALVE
ZERO
PRESSURE
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