Kärcher MC 50 - Air Filter and Fuel System Ventilation; Fuel System Ventilation; Air Filter Check and Replacement

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Caution
Risk of damage. Do not ventilate the fuel
system by activating the starter.
 Check if the fuel tank is filled.
 Open the drain tap on the fuel filter and
on the water separator.
1 Pump lever
 Press the pump lever down several
times until the fuel system is ventilated.
 Start the motor.
 If the engine does not start, repeat the
ventilation process.
Caution
Risk of damage. Do not ventilate the fuel
system by activating the starter.
 Check if the fuel tank is filled.
 Open the locking tap at the water sepa-
rator.
 Start the motor.
1 Change air filter indicator
 If the ventilation display is red, the air fil-
ter insert must be replaced.
1 Screw
2 Clip
3 Air filter housing
 Loosen screws.
 Slide the air filter in and remove it to-
ward the bottom.
 Loosen the clamps.
 Open the air filter housing.
1 Air filter insert
2 Pre-filter
3 Clip
 Remove pre-filter.
Leave the air filter insert in place and
thus prevent the dust from entering the
engine when cleaning the prefilter.
 Carefully blow out the prefilter from the
inside to the outside with compressed
air (0.3...0.5 MPa).
 If the prefilter does not become clean or
if the prefilter is damaged, use a new
prefilter.
 Clean the interior of the air filter reser-
voir.
 Replace air filter insert if necessary.
 Reassemble air filter in the reverse se-
quence.
 Press the key of the air filter display to
reset the display.
 Disconnect the hose coupling of water
circulation system.
 Connect the water supply hose to the
water circulation system and flush it.
 When flushing the end toward the suc-
tion pipe, set the irrigation switch to wa-
ter circulation system.
Ventilate the fuel system (for MC 50)
Ventilate the fuel system (for MIC 34C)
Check the air filter
Cleaning and replacing the fuel filter
Flush the water circulation system
(option)
24 EN