![background image](http://html1.mh-extra.com/html/lavor/8-621-1004/8-621-1004_manual_680797025.webp)
25
EN
Repair
• Contact an authorised
service centre.
• Contact an authorised
service centre.
• Contact an authorised
service centre.
Fault
The motor stops suddenly
or after a while
Cause
• The motor-protecting
switch is on because of in-
suffi
cient mains voltage.
Repair
• Check the value of the
mains voltage.
• Contact an authorised
service centre.
Fault
When the lance is turned
on pressure values de-
crease and increase
Cause
• The nozzle is either
clogged or deformed.
• Either boiler coil or lance
are clogged with lime-
stone.
Repair
• Either clean it or replace it.
• Descaling.
Fault
To much vibrations at the
delivery
Cause
• The pressure tank is run
down.
• The valve are worn out or
dirty.
Repair
• Check the pressure in the
tank.
• Check and/or replace.
Fault
The pump does not reach
the fi xed pressures
Cause
• The pump sucks air.
• The valves are worn out.
• The setting valve area is
worn out.
• The nozzle is unsuitable or
worn out.
• The seals are worn out.
Repair
• Check the suction pipes.
• Check and/or replace.
• Contact an authorised
service centre.
• Contact an authorised
service centre.
Fault
Irregular pressure fl uctua-
tions
Cause
• The suction and/or deliv-
ery valves are worn out.
• Presence of foreign mat-
ters in the valves, which
generate bad functioning.
• Air suction.
• The seals are worn out.
Repair
• Check and/or replace.
• Check and clean the re-
place.
• Check the suction pipe.
• Check and/or replace the
seals.
Fault
Pressure leakage
Cause
• The nozzle is worn out.
• The suction and/or deliv-
ery valves are broken or
down.
• Presence of foreign mat-
ters in the valves, which
generate the valves bad
functioning.
• The setting valve area is
worn out.
• The seals are worn out.
Summary of Contents for 8.621.1004
Page 65: ...65 EL 30 cm KL 1 A S S 2...
Page 66: ...66 EL 30 l min 40 C 1Mpa 6 1 10 bar 6 2 13mm A S S 5 OFF...
Page 68: ...68 EL 5 1 1 7 8 1 5 1 2 1 3 8 1 8 2 A 2 1 3 Diesel 4...
Page 69: ...69 EL 9 A 9 B 1 3 10 S 13 30 15 10 50 500 ISO 150 0 45 Kg 11 1 5 10...
Page 70: ...70 EL 12 6 6...
Page 71: ...71 EL...
Page 72: ...72 EL...
Page 73: ...73 EL 180 200 14...
Page 74: ...74 EL E E 2002 96 CE 27 2003 E E 15 3 16 17 18 19 20 12...
Page 88: ...cod 7 700 0183 Rev 03 10 2008 via J F Kennedy 12 46020 Pegognaga MN ITALY...