Supplementary Maintenance; Problems, Causes And Remedies - Comet K series Bedienungs- Und Wartungsanleitung

Supplementary maintenance must be carried out by a
MAINTENANCE INTERVAL
Every 200 hours
Every 500 hours
PROBLEMS
The high-pressure The safety device of the system
water cleaner does to which the high-pressure water
not start when the cleaner is connected has cut-in (fuse,
master switch (1) is differential switch, etc.).
place into position
"1". Plug not connected correctly.
The high-pressure Dirty water inlet filter (18).
water cleaner vibrates
a lot and is noisy. Drawing in air.
Insufficient water supply or excessive
priming depth.
The high-pressure The control valve is set at a value lower
water cleaner does than the maximum.
not reach maximum
pressure. Nozzle head (30) in low pressure
(Fig. 3 - Position a).
Nozzle worn-out.
Insufficient water supply or excessive
priming depth.
P o o r d e t e r g e n t Nozzle head (30) is not in low pressure
suction. (Fig. 3 – Position b).
The detergent adjustment knob of the
cap (11) Is not fully open.
After using the external tank, the cap
(33) has been incorrectly repositioned.
Blocked detergent suction filter (39).
Excessive detergent viscosity.
Water does not exit No water.
the nozzle.
Excessive suction depth.
Blocked nozzle.
The high-pressure The safety device of the system
water cleaner stops to which the high-pressure water
while operating. cleaner is connected has cut-in (fuse,
differential switch, etc.).
Amperometric safety device has cut-in.
The high-pressure Leaks and/or dripping in the delivery
water cleaner starts circuit.
spontaneously.
When turning the Unsuitable electrical system and/or
master switch (1) The extension lead.
engine hums but does
not start.

SUPPLEMENTARY MAINTENANCE

QUALIFIED TECHNICIAN
• Check the pump hydraulic circuit (water).
• Pump oil replacement.
• Check pump delivery/intake valve.
• Check tightness of pump screws.

PROBLEMS, CAUSES AND REMEDIES

CAUSES
, following the table below (guideline data).
OPERATION
REMEDIES
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.
Follow that indicated in paragraph
Check the condition of the suction circuit.
Make sure that the tap is fully open and that the flow rate of the mains water
or the priming depth are in accordance with that indicated in paragraph
"TECHNICAL CHARACTERISTICS AND SPECIFICATIONS"
Turn the knob (8) clockwise.
Carry out the operation indicated in Fig. 3 - Position b.
Replace the nozzle following that indicated in paragraph
.
MAINTENANCE"
Make sure that the tap is fully open and that the flow rate of the mains water
or the priming depth are in accordance with that indicated in paragraph
"TECHNICAL CHARACTERISTICS AND SPECIFICATIONS"
Carry out the operation indicated in Fig. 3 - Position a.
Turn the knob anti-clockwise.
Reposition the cap correctly.
Follow that indicated in paragraph
Use a detergent recommended by the manufacturer, maintaining the
dilution indicated on the label.
Check that the mains tap is fully open or that the suction pipe can prime.
Check that the priming depth complies to that indicated in paragraph
"TECHNICAL CHARACTERISTICS AND SPECIFICATIONS"
Clean and/or replace the nozzle as indicated in paragraph
.
MAINTENANCE"
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
Check the condition of the delivery circuit.
Check that the electrical connections have been made correctly (see
INSTRUCTION MANUAL - SAFETY WARNINGS
reference to the extension lead used.
• Check pump fixing.
• Check pump control valve.
• Check the safety devices.
"ROUTINE MAINTENANCE".
"ROUTINE
"ROUTINE MAINTENANCE"
"ROUTINE
.
"SAFETY DEVICES"
), with particular
GB
.
.
.
.
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