Nilfisk-ALTO 03KLU Diagnosis of faults and repair, Fault, Cause, Repair, The motor fails to start

12.0 Diagnosis of faults and repair EN

Fault	Cause	Repair
The motor fails to start	Oil supply not connected	Connect the oil hose
	Oil supply closed	Open the valve
	No oil pressure	Start the hydraulic pump
	The pump is frozen	Let the pump thaw
Working pressure too high	Nozzle partly blocked	Clean the nozzle
Working pressure too low	Valve for regulation of water	Open fully the valve for regulation
	capacity is not adjusted to max.	of water. Turn in the direction
	pressure	indicated by the arrow
	Regulating valve open	Close the regulating valve
Irregular working pressure	Air in the pump	Repeat the venting procedure
During self-priming	Suction height too high or water	Read the paragraph conc. self-
	too hot	priming p. 6
	Filter blocked	Clean the fi lter. See p. 11
During direct water	Insuffi cient water supply from	Change to a water supply with
connection	the water works	greater output. If this is not
		possible; turn the valve for regulation of
		the water capacity in the opposite
		direction of that indicated by the
		arrow, until the machine works smoothly.
No working pressure	Nozzle blocked	Clean the nozzle
	No water	Check the water connection
	High pressure hose/lance frozen	Allow the high pressure hose/lance
		to thaw
	By-pass valve frozen	Allow the machine to thaw

Should faults occur other than those mentioned above, please contact the nearest Nilfi sk-ALTO service organization.

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