Karcher IP 120 - Manual (Page 17)

English 17
ƽ
Danger!
Risk of accident while working on the appli-
ance. Carry out all the steps described in
the chapter "Shut down" before starting
anhy work on the device.
ƽ
Danger
Risk of cold burns on account of dry ice or
cold parts of the machine. While working on
the machine, wear appropriate safety gear
for protection against cold or remove dry ice
and let the machine heat up.
Avoid bodily contact with dry ice.
Never put dry ice in your mouth.
Troubleshooting
Faults with display
Fault Possible cause Remedy By whom
The indicator lamp
"Oil level low" illumi-
nates Hydraulic system is leaking Check the hydraulic system for tightness. Take
the machine out of service if the hydraulic sys-
tem is leaking and contact customer service. Operator
Defective oil level indicator Check the oil level indicator. If the oil level is not
OK, inform customer service. Operator
Indicator lamp "Oil
temperature high" illu-
minates The oil cooler ventilator is not functioning
properly Check ventilator function of oil cooler, clean if
required. Call customer service in case of de-
fects. Operator
Defective temperature switch Inform Customer Service. Operator
Indicator lamp "Motor
overload" illuminates Press "Reset" key. Restart the machine. If the
fault recurs, call customer service. Operator
Indicator lamp "Cycle
too long" illuminates No extrusion Check the extruder plate and the pistons for
damage; contact customer service if damaged. Operator
Defective positioning sensor Inform Customer Service. Operator
Direction of rotation of the hydraulic pump is
wrong. Check the electrical connection. Customer
Service
Faults without display
Fault Possible cause Remedy By whom
No dry ice snow pro-
duction No liquid carbon dioxide in the supply line Wait until the liquid carbon dioxide has dis-
placed the gas in the line. Operator
Valves EV2, EV3, EV4 * are blocked or de-
fective.
* IP 220 only If the solenoid valves are functioning properly,
there will be an audible click when the carbon di-
oxide supply is switch off. Call customer service
if necessary. Operator
Carbon dioxide pressure too high IP 120: Adjust the pressure on the carbon diox-
ide supply (value is listed in "Specifications").
IP 220: Check pressure at the manometer. If the
pressure is higher than 2.1 MPa (21 bars), in-
form customer service. Operator
Too much dry ice
snow in the exhaust
line Valves EV2, EV3, EV4 * do not close.
* IP 220 only Inform Customer Service. Operator
Sintered bushing defective. Inform Customer Service. Operator
Water is dripping from
the machine Drain in the condensate collector or in the
condensate line plugged. Clean the drain and the condensate line. Operator