Trouble-Shooting And Actions - Maruyama MS75 Manual Del Propietario U Operador

Trouble-shooting and actions

・When the pump or engine is not performing piopeily please refer to the following chart.
・Where marked with ☆, request adjustment or repair at authorized MARUYAMA servicing pealer.
Pump
Phenomena
Suck no water
Pressure cannot be
increased.(poor
spraying state)
Engine
Phenomena
Does not start
Insufficient output
Excessive Vibration
Excessive Vibration
English
Cause
(1) Loose connecting of suction hose
(2) Suction hose clogged with chemicals
(3) Wear to piston packing
(4) Foreign matter in valve portion
(1) Wear to piston packing
(2) Scratch on the inside surface of cylinder
(3) Scratch on delivery valve
(4) Wear to pressure control valve seat
(5) Foreign material on each valve
(6) Wear to cam handle
(7) Wear to nozzle hole
(8) Too high a nozzle number used
Cause
・No fuel
・Fuel filter is clogged
・Improper starting
・Poor ignition plug
・Poor magnet
・Poor carburetor
・Poor adjustment of throttle wire
・Clogging of air cleaner element
・Carbon building up at exhaust port and muffler
・Loose parts
・Loose muffler and muffler cover
Treatment
(1) Tighten sufficiently.
(2) Disassemble and clean
(3) Replace with new parts
(4) Disassemble and clean
(1) Replace with new one.
(2) Replace with new one.
(3) Replace with new one.
(4) Replace with new one.
(5) Disassemble and clean.
(6) Replace with new one.
(7) Replace with new one.
(8) Decrease number of nozzles
Treatment
・Supply fuel.
・Clean
・Refer item "Starting engine"
・Replace.
・Replace.
・Replace.
・Adjust.
・Clean.
・Clean.
・Tighten
・Tighten
23
or replace with smaller
diameter nozzle.
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