Hardi MASTER PRO VHH, Instruction Book, Page: 17 / 82

3 - Description
17
Filters
A suction filter is fitted at the top of the tank and is indicated with red
hose tail.
In-line pressure filters can be fitted at each boom section as an option
(J).
Nozzle filters are fitted at each nozzle.
All filters should always be in use and their function checked regularly.
Pay attention to the correct combination of filter and mesh size (see
“Spray Technique” book).
Self-cleaning filter
With the self-cleaning filter the impurities that exist in the spray liquid
will by-pass the filter and be recirculated back 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 may be closed in situations
where return flow is to be avoided, i.e. by flushing of spray lines without diluting the spray liquid in the main tank.
μ
ATTENTION! If the ball valve is closed, the self-cleaning function is inoperative!