Kärcher MC 50, Original Instructions Manual

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Troubleshooting
Faults with display
Display Cause Remedy By whom
Warning lamp for
motor temperature
lights up Engine is overheated Set the engine speed to idle.
Clean the radiator (see "Care and Maintenance).
Run the engine in idle until the warning lamp turns
off.
Check the level of cooling liquid in the engine.
If the warning lamp does not turn off within 5 min-
utes, shut off the engine and contact Customer Ser-
vice. Operator
Warning lamp for hy-
draulic oil tempera-
ture Hydraulic oil overheated
Warning lamp for
battery lights up Battery is not being charged Call Customer Service. Operator
Faults without display
Fault Remedy
Appliance cannot be started Charging or replacing battery
Press the brake pedal.
Fill in fuel, deaerate the fuel system
Clean or replace fuel filter
Check fuel pipes, connections and joints and maintain them if required
Inform Kärcher Customer Service.
Engine is running erratically Clean or replace air filter
Check fuel pipes, connections and joints and maintain them if required
Inform Kärcher Customer Service.
Engine is running but machine is only moving
slowly or is not moving at all Release parking brake
Check level of hydraulic fuel
Inform Kärcher Customer Service.
Side-brushes are rotating slowly or not at all
(for sweepers) Increase the side-brush speed
Remove ropes and tapes
Check level of hydraulic fuel
Inform Kärcher Customer Service.
Appliances generates dust (for sweepers) Switch on the water pump
Refill water
Adjust the speed of the side-brushes
Cleaning the spray nozzles on the side-brushes
Inform Kärcher Customer Service.
Sweeping unit does not pick up waste
(for sweepers) Reduce working area
Empty waste container
Set the engine correctly
Clean the suction channel
Clean the exhaust grid
Inform Kärcher Customer Service.
Coarse waste is left behind (for sweepers) Lower the suction opening and clean the top surface.
Waste container does not raise or lower (for
sweepers) Check level of hydraulic fuel
Inform Kärcher Customer Service.
Operation problems with hydraulic movement
parts Inform Kärcher Customer Service.
Appliance is sluggish
Drive performance too low if an attachment is con-
nected (for MIC 34C) Switch the work hydraulics to parallel
Attachments show slow reactions
Performance too low
Attachment comes to a standstill if 2 attachments
or a front brush roller and sprayer are connected
(for MIC 34C) Switch the work hydraulics to serial
One of two connected attachments is not be oper-
ated Switch the work hydraulics to parallel
Disconnect the hydraulic coupling of the attachment that will not be needed
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