Croplands CROPAIR 300, Operator'S Manual, Page: 27 / 62

27
SECTION 5
PRE-OPERATION
USING OPTIONAL ELECTRIC CONTROLLER
For sprayers fitted with the optional Braglia I-S4021
electric (in-cab) controller / pressure manifold. The
controller comes with a separate instruction manual.
The photo below shows the controller (installed on a 1,000
Lt trailed sprayer).
Connect the supplied control / switch to the tractor and
sprayer …
1. Connect to a suitable (tractor) power source
2. Connect to the controller manifold loom
Take care to route the wiring looms away from PTO shafts,
linkage arms etc.
The control box unit has switch functions for …
1) 3 position master on / off / off switch
2) 2 x section control on / off switches
3) pressure control toggle switch.
Set-up
Before start-up make sure all switches are in the off
position. Engage PTO at low speed.
The master switch has 2 off positions.
The fully down OFF position (shown above) will draw
power (light is on). The bypass (dump) valve is open and
there will be no pressure.
The middle OFF position will draw no power, the pressure
relief valve is active. With the PTO running, the pressure
will show on the gauge.
Adjust the pressure via the toggle switch on the right-hand
side of the control box.
The up position is ON. To activate spraying, flick either or
both spray section switches to ON. Adjust the pressure to suit.
Always finish with the master switch in the middle position
(to avoid a flat battery).