Maruyama MS317 Instruction Manual page 20

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