Cylinder Head, Uninstall - Kärcher HD 9/50-4 Cage Service Manual

4.9.4 Cylinder head, uninstall

Unscrew the overflow or slightly loosen the hollow screws that
secure the overflow.
Loosen the 8 screws from the pump head.
Carefully pull out the cylinder head using both hands.
Loosen the screw inserts of the stopper bushings using the
special tool 5.511-001.0 and and take out the washers using
the pliers (4.901-062.0).
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English 5.906-441.0 Rev. 01 (06/10)