Nilfisk-ALTO 03KOS, Instruction Manual

Page: 23 / 40

23
11.0 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 3.1 conc. self-
too hot priming.
Filter blocked Clean the fi lter. See paragraph 7.3.
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.