Makita EW220R - Manual (Page 38)

Pump dose not run. Engine dose not start. (See page 28)
Sticking of impeller
(Disassemble and clean.)
Pumping volume is
small Sucking air at suction side.
(Check piping at suction side.)
Breakage of mechanical seal.
(Consult your nearest dealer.)
High suction lift (Lower.)
Suction hose is too long or thin.
(Use a thick hose in minimum length.)
Leak of water from water passage.
(Stop leaking.)
Clogging of foreign substance in impeller.
(Disassemble and clean.)
Wear of impeller.
Strainer is clogged. (Clean.)
Engine speed is too low.
(Consult your nearest dealer.)
Pump dose not self-
prime Suction of air at suction side.
(Check piping at suction side.)
Insufficient priming water inside pump
casing (Prime fully.)
Imperfect tightening of drain plug.
(Tighten the plugs completely.)
Engine speed is too low.
(Consult your nearest dealer.)
Sucking air from mechanical seal.
(Consult your nearest dealer.)
Drop in engine output
(Consult your nearest dealer.)
10. TROUBLESHOOTING
27