Safety: Maintenance Precautions
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Waratah Key Switch Control
It is important to understand how the Waratah key switch
control operates. It has three positions: Off, Automatic,
and Manual. These work in conjunction with the carrier
controls as described below. The Manual position is used
for harvester head troubleshooting.
Off
When the key switch control is in the Off position:
•
Hydraulic power, controller communications, and
electrical power to harvester head solenoids are
disabled.
•
The rotator system is controlled by carrier hydraulics.
•
The key can be removed. (It can be removed only if
in this position.)
Automatic
When the key switch control is in the Automatic position:
•
Electrical power and communications to the harvester
head system are enabled.
•
The Waratah controller is on.
When carrier hydraulic controls are On/ enabled:
•
Waratah harvester head functions are enabled.
•
Hydraulic power to the carrier machine is enabled.
•
Carrier hydraulic controls are enabled.
When carrier hydraulic controls are Off/ disabled:
•
Harvester head hydraulic functions are not active.
•
Hydraulic power to the carrier machine is disabled.
•
Carrier hydraulic controls are disabled
Manual
When the key switch control is in the Manual position:
XJ1283963
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Waratah key switch control
•
Controller communications and electrical power to
harvester head solenoids are disabled.
•
The Waratah controller is off.
•
Harvester head functions are disabled.
•
Carrier controls are disabled.
When carrier hydraulic controls are On/ enabled:
•
Harvester head hydraulic pump (minor pump) is
enabled.
•
Carrier machine hydraulic power is enabled.
NOTE: Waratah hydraulic pump 1, or the designated minor
pump, supplies hydraulic oil to the harvester head.
When carrier hydraulic controls are Off/ disabled:
•
Harvester head hydraulic pump is disabled.
•
Carrier machine hydraulic power is disabled.
NOTE: Waratah hydraulic pump 1, or the designated
minor pump, does
not
supply hydraulic oil
to the harvester head.
H-16 Controller Power
The H-16 system has separate switched and unswitched
power networks. The primary switched 24 V network
powers the solenoids that control head movement, via the
software. The constant unswitched 24 V control network
(stepped down to 5 V to run the circuits) allows a soft
shut-down when the key switch is turned off. It cannot
supply power to the solenoids.
Carrier Reset and Interlock
Note that some carrier models have an additional reset
switch, mounted at the cab door or armrest, to enable or
disable electric and hydraulic systems.
Some carrier hydraulic control systems include interlocks,
which will disable the carrier’s hydraulic power when
activated.
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