18
State
(3)
Pressure
decreases if
the dischage
valve is
opened
(4) Spraying hose vibration
(5) Noise
(6) Liquid leak/oil leak
Nozzle
Power sprayer
Hose
◎
◎
◎
◎
◎
◎
◎
◎
◎
◎
Nozzle worn out Replace
Excessive nozzle spray volume
Replace with a proper nozzle
Low water intake volume See (1)
Too long spray hose
Set the proper length
Too thin spray hose
Set the proper thickness
Water leak from hose connection Repair/replace
Air chamber filled with water
Open suction line to allow air in
(idling within 1 minute)
Poor pressure control valve motion
Disassemble/adjust
Water intake/pressurizing line error
Disassemble/adjust
(clogging, looseness)
Nozzle clogged Clean
V pulley fastening bolt loosened Retighten/replace
Connection rod bolt, etc. loosened Retighten
Bearing broken Replace
Pressure control valve assembly error Adjust
Air intake Check
O-ring damaged Replace
Seal packing damaged Replace
Oil seal damaged Replace
Tightening/assembly error
Disassemble/adjust
Cause Action
Troubleshooting and Actions for Power Sprayer
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