Instruction Manual
PNA
55
Maintenance
• Operational maintenance - Part I
PROBLEMS
PROBABLE CAUSES
SOLUTIONS
Blade does not articulate
and/or does not lift
the structure.
Pressure of plugs uneven.
Adjust and change if necessary.
Hydraulic driver clogged or bent.
Unclog or change driver.
Insufficient hydraulic control
pressure.
Adjust the control via the relief
valve using a pressure gauge.
Normal pressure 180 Kgf/cm².
Inverted hoses.
Inspect and assemble hoses correctly.
Defective hydraulic cylinder.
Replace repair or replace cylinder.
Tractor with poor hydraulic system.
Check by changing equipment to
another suitable tractor.
Oil level too low.
Fill to level.
Structure goes down without
triggering the control.
Hydraulic cylinder with
damaged repairs.
Replace repairs.
The blade’s hydraulic
cylinders are not
activating at the same
time.
Hoses are not reverse mounted.
Loosen hoses and reverse mount.
Damage tires.
Work area with stones, stumps
or crop stubbles that causes cuts
to the tires.
Eliminate elements that damage the
tires before using the
PNA
.
Tires are not under the proper
pressure causing deformation.
Maintain proper tire pressure.
Strange noise on wheels.
Loose wheels or wheel hub.
Retighten wheel nuts and adjust
wheel hub bearings.
Bearings breakage.
Identify the occurence and replace
the damaged parts.
Quick coupling does not fit.
Couplings of different types.
Exchange them for males and females
of the same type.
Leak in quick couplers.
Insufficient tightening.
Retighten carefully without excess.
Damaged repairs.
Replace repairs.
Содержание PNA 3000
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