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6
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precautions
Thank you very much for your purchase this time.
Needless to say, no matter how excellent the quality of
the product may be it won't display its maximum
potential performance unless operated properly.
Read this instruction manual repeatedly prior to opera-
tion in order to make the best use of the product.
Power sprayers are for agricultural or irrigation uses
and not for industrial use. Therefore, do not use
chemicals, seawater, hot water, etc. When agrichemi-
cals are used, read and follow the instruction manual
for chemicals.
For further information or assistance, please contact
the nearest authorized Maruyama Dealer of the store
which you purchased this product from.
When pump fails to suck liquid.
When hoses are vibrating themselves...
Hose vibration occurs when air is released out of
air-chamber. It will stop if you let air send forth as fol-
lowing procedural.
q
Open main
cock.
w
Once pump
sucks liquid.
e
Close main
cock.
w
Release pressure
q
r
Lift suction strainer
once to let it suck air for
about 10 seconds and
plunge it into water
again.
High
Low
Pressure
value
t
When pressure fails to get accumulated...
●
Inspect belt for
tension.
●
Inspect pressure regulating
valve for wear.
●
Replace wrong nozzle for proper one.
When nozzle orifice is big. . . . .Make orifice smaller.
15
〜
20mm
When spray is voluminous. . . . .Make spray less volu-
minous.
Valve seat
Valve ball
Choose right nozzle so that its spray vol-
ume fails on about 80% (but not more than
80%) of suction volume.
e