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CONTENTS Page
Description ............................................................................................................................... 3
Safety ........................................................................................................................................ 4
Operator protection ................................................................................................................... 4
Preparing for spraying ............................................................................................................... 5
Mixing, filling and calibration ................................................................................................... 6
Before spraying ....................................................................................................................... 10
To start spraying ...................................................................................................................... 10
To stop spraying ...................................................................................................................... 11
After spraying .......................................................................................................................... 12
Storage .................................................................................................................................... 13
Parts List ................................................................................................................................. 14
HERBI 4 Extra ........................................................................................................................ 26
Troubleshooting ...................................................................................................................... 27
DESCRIPTION
The HERBI 4 is a simple robust hand-held spinning disc Controlled Droplet
Application (CDA) sprayer powered by 4 torch (D-cell/R20) batteries, with one set of
good quality batteries giving over forty hours spraying time. It is designed to apply
herbicides in a 1.2m wide band at low volumes (10 to 30 litres/hectare). A governed
electric motor spins the atomiser disc at a constant 2,000 rpm to produce uniform
spray droplets of around 250 micron; large enough to minimise any risk of spray drift.
Liquid is fed by gravity through colour coded feed nozzles. The HERBI 4 can apply
herbicides to borders, pathways, ditches and larger areas by making a series of
consecutive spray passes. The weight of the machine ready to spray, with the
Micropak 5 litre backpack, is 7kgs.
Optional 5 litre
Micropak backpack
Optional handle/
valve conversion
Optional shoulder
strap
On-off switch
Flow valve
Carrying handle/
battery case
Spray head
Feed nozzle
Atomiser disc
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