Great Plains P15061 Serial No 12682 - Manual (Page 34)

Solo
Operating Instructions
34
5.9.3 2 Litre Accumulators
The manufacturers of this part recommend
that the pressure of the nitrogen pre-charge
is checked annually (seasonally). The
recognised procedure for testing the nitrogen
pressure uses specialised test equipment. In
instances where this equipment is not
available the following procedure should be
used.
1. Attach the Solo 330 to a tractor and
attach the lift and tine circuits.
2. Raise the machine clear of a firm
surface. Function the tine circuit, noting
the pressures registered on the gauges
when the tines are pressured down. The
following settings are normal.
3. Remove three tines from the machine
leaving one of the inner tines in the
deepest work setting.
4. Lower the machine carefully. The aim
is to cause the remaining tine to trip and
note the change in cylinder gauge
pressure. The cylinder gauge should
show a rise indicated in the table below.
5. If less than full tine trip is achieved or a
pressure rise of greater than 55 bar is
indicated then the 2 litre accumulator
should be recharged to 80 bar nitrogen
pressure or replaced with a correctly
charged accumulator.
5. Servicing and Maintenance
Soil Type Setting Cyl. Gauge Rod Gauge
Normal 90 bar 20-40 bar
Hard / Stone Free 120 bar 40-60 bar
Soil Type Setting
Starting Cyl.
Pressure
Pressure
Rise
Normal 90 bar 15-20 bar
Hard / Stone Free 120 bar 35-40 bar
It is important that this procedure is carried
out to avoid damage to the machine. In a
situation where nitrogen pressure has
dropped there will be no indication in normal
work as the void usually filled with nitrogen
will become filled with oil and the gauges will
register no change in working pressure.
Fig. 5.07: 2 Litre Acumulator