Visible Water Leakage - Kärcher HD 1050 Service Handbook

HD 1050 Trouble shooting

4. Visible water leakage

4.1 Relief valve
Unscrew the nuts, pull off the springs and un-
screw the screw plug.
Pull the rod together with the piston out of the
housing.
Heat the rod and screw out the piston.
Replace the O-ring and O-ring sets.
For fitting instructions, see page 12.
4.2 Leakage between the cylinder head and
relief-valve housing
Unscrew the screws and remove the relief-
valve housing.
Replace the O-ring, applying silicon grease
before fitting.
Remount the housing and tighten the screws to
a torque of 9 Nm.
17