Filters; Self-Cleaning Filter - Hardi NK SB Series Instruction Book

3 - Description

Filters

A suction filter is fitted at the top of the tank. In-line pressure filters can
be fitted at each boom section as an option (J).
Nozzle filters are fitted at each nozzle.
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ATTENTION! All filters should always be in use and their function
should be checked regularly. Pay attention to the correct
combination of filter and mesh size. For more, see the chapter
"Technical Specifications" in this book.
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ATTENTION! Always run your sprayer with cleaned filters to
ensure proper functions and to protect the interior of the pump.

Self-Cleaning Filter

With the self-cleaning filter, the impurities that exist in the spray liquid
will be filtered out and returned to the tank via the return flow.
Function diagram:
1. From pump
2. Double filter screen
3. Guide cone
4. To operating unit
5. Exchangeable restrictor
6. Return to tank
7. Screw joint
8. Ball valve
Ball valve (8) should normally be open, but it may be closed in situations,
where return flow is to be avoided, e.g. flushing of spray lines without
diluting the spray liquid in the main tank.
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ATTENTION! If the ball valve is closed, the self-cleaning function is inoperative!
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