0 diagnosis of faults and repair en – Nilfisk-ALTO 03KLU User Manual
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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 smooth ly.
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
or gan i za tion.