Hardi Commander Plus, Supplement To Operating Instructions

6

SUPPLEMENT TO HARDI

®

 COMMANDER        OPERATOR’S MANUAL

Operation

Adjustment of  ECP operating controls

1. Power switch
2. Manual pressure regulation
3. Main ON/OFF
4. End nozzle (Left/OFF/Right)*
5. Foam marker regulation*
6. Foam marker (Left/OFF/Right)*
7. Boom section valves
8. Valve function A-B*

*optional equipment

Before spraying, adjust the ECP operating unit 
using clean water (without chemicals).

1. Choose the correct nozzle (see manual). Make sure 

that all nozzles are the same type and capacity.

2. Put the tractor in neutral and set the parking brake. 

Adjust the P.T.O. r.p.m. to the number of revolutions 
that will typically be used while spraying.  This must 
be kept between 300-600 r.p.m. (540 r.p.m. pump) 
or 650-1100 (1000 r.p.m. pump) to ensure correct 
operation of the HARDI-MATIC system.

3. Turn power switch 

1

 and main ON/OFF switch 

3

 to 

the “ON” position.

4. Make sure all boom switches 

7

 are also in the “ON” 

position. All nozzles should be spraying at this time.

5. Hold pressure regulating switch 

2

 up (+) or down (-) 

until the approximate spraying pressure is shown on 
the system pressure gauge.

Pressure

Control

Valve

Distribution

Valves

System Pressure

Gauge

Constant Pressure

Adjusting Screws

Adjustment of constant pressure

Note:

 Disconnect power to the Spraybox to allow 

for manual operation of the boom distribution 
valves. Adjustment will be made one section at a 
time until all valves have been adjusted.

6. Perform steps 1-5 and use the pressure reading from 

step 5 throughout the constant pressure adjustment 
procedure.

7. Manually shut-off the fi rst boom distribution valve by 

turning the fi rst green handle (the fi rst boom section 
should shut off).

8. Turn the adjusting screw under the valve just turned 

off until the control pres sure gauge again shows 
the same pressure as when all boom sections were 
open (Turn the screw clockwise for higher pres sure, 
counterclockwise for lower pressure).

9. Turn the boom distribution valve back on.
10. Repeat steps 6-9 for the remaining boom distribu-

tion valves.

Note:

 Hereafter adjustment of the constant boom pres-

sure will only be needed if you change to nozzles with 
other capacities, but not required if only changing pres-
sure or application rate using the same nozzles.

Operating the control unit while spraying

In order to shut off the entire boom, fl ip ON/OFF switch 

3

 to the "OFF" position. This returns all the pump 

outputs to the main tank through the return system. 
The diaphragm anti-drip valves ensure in stan ta neous 
closing of all nozzles.

In order to shut off one or more sections of the boom, 
switch the relevant distribution valve 

7

 to the "OFF" 

position. The constant pressure system ensures that 
the pres sure does not increase in the sections which 
are still  open.

In case of electrical failure, it is still possible to man u al ly 
override all functions of the operating unit. To operate 
manually, disconnect the multiplug from the Spraybox 
fi rst and operate the handles by hand. It is possible to 
change pressure and turn boom sec tions on or off.

Note:

 Since the on-off switch normally op er ates by 

shutting off all the boom distribution valves, you will 
need to manually shut off all the distribution valves to 
shut off the complete control unit manually.

IM POR TANT! When the sprayer is stored, the 
Spraybox and the multiplug must be pro-

tected against moisture and dirt. A plastic 

bag may be used to protect the multi plug. Store the 
Spraybox in a clean dry place.