Great Plains Simba Flatliner 500 FW Operator Manual - Manual (Page 25)

25 Simba Flatliner 500 FW
270-600M-ENG
2013-02-06
5. Servicing and Maintenance
The circuit allows for the tines to be
pressurised down into work where a relief
valve allows the tine to trip up if necessary.
In normal operation, oil is locked in the
cylinder circuit at a pressure determined by
the relief valves.
De-pressurising the Circuit
To de-pressurise the circuit, identify and
adjust the following valves on the Tine
Control Manifold.
All valves can be identified by stamped
codes adjacent to each valve (above).
1 Set tractor hydraulics to neutral,
machine raised.
2 Adjust pre charge valve ( marked CCCA
LIN) fully clockwise. If necessary, note
the number of turns that it takes for the
system to be reset.
3 Adjust relief ( marked RDBA LBN) fully
anticlockwise. If necessary, note the
number of turns that it takes for the
system to be reset.
4 Set tank return line circuit to float or
down to return oil to tractor.
5 Set main system to float, or allow
oil pressure to be released in both
directions.
6 Refer to pressure gauges on machine.
Ensure both read zero before
attempting any maintenance. Repeat
the above procedure until both gauges
read zero in all circumstances.
Follow detailed setting sequence on page 26
to reset the system prior to returning to work,
or alternatively revert the above valves back
to their original setting (number of turns).
FRONT OF
MACHINE
CCCA LIN
TYPE: PRE-CHARGE VALVE
TURNING CLOCKWISE: REDUCES PRESSURE
RDBA LAN (T)
RELIEF VALVE (FAIL SAFE)
TURNING CLOCKWISE: INCREASES PRESSURE
NCBB LCN
FLOW CONTROL
RDBA LBN
RELIEF VALVE (ACCUMULATOR)
TURNING CLOCKWISE: INCREASES PRESSURE
GAUGE A
GAUGE B
5.5 Trip Reset Tine Hydraulics