Karcher KMR 1250 B - Manual (Page 19)

English User Instructions KMR 1250 B
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Cleaning the fuel filter
holder
Petrol is highly flammable and under certain con-
ditions it is also explosive. Do not smoke within
the working area and keep away from open flames
or sparks.
When the filter holder is refitted, check that it
seals properly and make sure the whole area is dry
before starting the engine.
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Set the fuel tap to OFF 1.
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Detach the filter holder and O-ring 2 and wash it out in a
non-flammable or flame-resistant solvent. Allow the
holder to dry out thoroughly and then screw it on tight.
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Set the fuel tap to OPEN. Check that there is no leakage.
Cleaning or replacing the air
cleaner
Do not run the engine without an air cleaner other-
wise this will lead to increased wear on the engine
The air cleaner must be washed out more frequently if the
engine is run in particularly dusty environment.
Do not wash the air cleaner in petrol or a cleaning
solvent with a low flash point.
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Paper insert 1: Replace the insert if it is very dirty. Other-
wise, blow compressed air through the insert from the
inside to out or knock it against a hard surface. Do not
brush it off, otherwise the dirt will be compacted between
the fibres.
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Foam insert 2 : Wash out the insert in a solution of was-
hing-up liquid and warm water. Rinse it out and allow it to
dry out thoroughly. Immerse the clean insert in engine oil
and squeeze out the excess fluid. If too much oil is left in
the insert, smoke will be given off by the engine when it is
next started.
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Checking the hydraulic
system
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Carry out a visual inspection. If there is any loss of fluid
from the hydraulic unit, cylinder or hoses, call KÄRCHER
Customer Service.