20
20
SUPPLEMENTARY MAINTENANCE
Supplementary maintenance must be carried out by a
QUALIFIED TECHNICIAN
, following the
table below (guideline data).
MAINTENANCE INTERVAL
OPERATION
Every 50 hours
• Check the pump hydraulic circuit (water).
• Check pump fixing
Every 100 hours
• Pump oil replacement.
• Check pump delivery/intake valve.
• Check tightness of pump screws.
• Check pump control valve.
• Check the safety devices.
PROBLEMS, CAUSES AND REMEDIES
PROBLEMS
CAUSES
REMEDIES
The high-pressure water cleaner
doesnot start when the master switch
(1) is place into position “1”.
• The safety device of the system to which the high-
pressure water cleaner is connected has cut-in (fuse,
differential switch, etc.).
• Plug not connected correctly.
• Reset the safety device.
IF IT CUTS-IN AGAIN, DO NOT USE THE HIGH-
PRESSURE WATER CLEANER AND CONTACT A
QUALIFIED TECHNICIAN.
• Disconnect the plug and reconnect it correctly.
The high-pressure water cleaner
vibrates a lot and is noisy.
• Dirty water inlet filter (18).
• Insufficient water supply or excessive priming depth.
• Follow that indicated in paragraph
“ROUTINE
MAINTENANCE”.
• Make sure the tap is completely open and that the flow
rate of the water supply line complies with what is written
in the
“SPECIFICATIONS AND TECHNICAL DATA”
section.
Poor detergent suction.
• The detergent suction adjustment device (20) is
not set correctly.
• No product in flask.
• Excessive detergent viscosity.
• Proceed as written in the
“WORKING WITH DETERGENT”
section.
• Add product.
• Use a detergent recommended by the manufacturer,
maintaining the dilution indicated on the label.
Water does not exit the nozzle.
• No water.
• Blocked nozzle.
• Check that the mains tap is fully open or that the suction
pipe can prime.
• Clean and/or replace the nozzle as indicated in paragraph
“ROUTINE MAINTENANCE”
.
The high-pressure water cleaner stops
while operating.
• The safety device of the system to which the high-
pressure water cleaner is connected has cut-in (fuse,
differential switch, etc.).
• The thermal circuit breaker has tripped.
• Reset the safety device.
IF IT CUTS-IN AGAIN, DO NOT USE THE HIGH-
PRESSURE WATER CLEANER AND CONTACT A
QUALIFIED TECHNICIAN.
• Follow that indicated in paragraph
“SAFETY DEVICES”.
The high-pressure water cleaner
starts spontaneously from
TOTAL
STOP
condition.
• Leaks and/or dripping in the delivery circuit.
• Check the condition of the delivery circuit.
When turning the master switch (1)
the engine hums but does not start.
• Unsuitable electrical system and/or extension lead. • Check that the electrical connections have been made
correctly (see
INSTRUCTION MANUAL - SAFETY
WARNINGS
), with particular reference to the extension
lead used.
