Hardi NL Series Instruction Book page 21

Paint
Some chemicals are very hard on paints. It is therefore well advised to
remove rust, if any, and then touch up the paint.
Tank
Check that no chemical residues are left from the last spraying. Chemi-
cal residues must not be left in the tank for a long time. It will reduce
the life of the tank. See Spray Technique book - Cleaning the sprayer.
Operating unit
Take care that the pressure regulation
valve is completely loosened. The spring
is thereby relieved and operation difficul-
ties are avoided at start-up next season.
Transmission shaft
Check that the transmission shaft fulfills its security purpose, e.g. that
shields and protective tubes are intact.
Anti-freeze precaution
If the sprayer is not stored in a frost- proof place you should take the
following precautions: Put at least 10 litres of 33% anti-freeze mixture
in the tank and let the pump run a few minutes so that the entire
system including spray hose are filled. Remove the glycerine filled
pressure gauge and store it frost free in vertical position.
The anti-freeze solution also hinders the O-rings and gaskets from
drying out.
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