53HARDI
®
N-SERIES 3-PT SPRAYER DIAPHRAGM OPERATOR'S MANUAL
6.2 Filters
IMPORTANT: Wear protective clothing when servicing & handling
components that have been in contact with spray liquid.
Clean fi lters ensure :
• Sprayer components such as valves, diaphr agms and operat ing unit
are not hindered or damaged during operation.
• Nozzle blockages do not occur while spray ing.
• Long life of pump. A blocked suction fi lter will result in pump cavit-
ation.
Suction fi lter
The main fi lter protecting spray er com po nents is
the suc tion fi l ter at the top of the tank. Check
it reg u lar ly. Make sure the O-ring on the
fi lter housing is in good condition and
lubricated*.
Pressure fi lter (BK-3 Control Unit only)
The BK-3 Control unit is equipped with a built-in pressure fi lter.
Unscrew the base to check and clean the fi lter. Make sure the O-ring
on the fi lter housing is in good condition and lubricated*.
*HARDI
®
recommends using a vegetable based oil to prolong the life of
the O-ring.
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