Morris C2 Contour, Operator'S Manual

Page: 38 / 92

Operation
5-8 August 2014 C2 Contour Air Drill
Opener Operation
Accumulator System Operation and Pre-Charge Information
• Always turn “Operating” valve out to bleed off/service
position and relieve hydraulic pressure from the
system before performing maintenance or repairs.
Note: Accumulator can store pressure even when
disconnected from tractor.
• The gas bladder in the hydraulic accumulator should
be pre-charged with dry nitrogen gas before being
mounted on the unit.
• Different accumulator pre-charge pressures will allow
for different ranges of trip out force, as shown in the
chart.
• Pre-charge pressure should be set for the most
common working conditions.
• Lower pre-charge pressures with higher operating
pressures will give longer lifting and lowering times.
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
ACCUMULATOR
OPERATING
VALVE
PRESSURE
ADJUSTMENT
Accumulator Operating Range
Nitrogen
Pre-charge
Pressure
Display Pressure
Minimum Maximum
350 psi (2413 kPa) 450 psi (3102 kPa) 1200 psi (8274 kPa)
* Maximum system hydraulic pressure is 1200 psi or 4 times the pre-charge
pressure, whichever is the lower number.