Maintenance and storage
Disc mower
GMD883
71
4. Maintenance
Hydro-pneumatic accumulators
Hydro-pneumatic accumulators do not require any
particular maintenance.
Regularly check the tightness of the accumulator fixing
bolts and that no oil has leaked from hydraulic circuit (a
small oil leak can change settings) (1).
To depressurize the circuit:
- Place the machine in parking position.
- Open valves (1).
- Decrease pressure until gauges indicate 0 bar (0 psi).
- Shut-off lock valves.
-
Before leaving the tractor or before
adjusting, maintaining or repairing the
machine, disengage the PTO drive, turn off
the engine, remove ignition key and wait until
all moving parts have come to a complete
stop and apply park brake.
Before any work is carried out on a hydraulic
circuit with hydro-pneumatic accumulator,
depressurize the circuit.
It is strictly forbidden to weld, grind or drill
onto a hydro-pneumatic accumulator.
Pressurize the hydraulic circuit before
activating any other hydraulic function of the
machine.
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