Kärcher HD 6/15-4 Service Manual

Also see for HD 6/15-4: Operating instructions Manual Original instructions Manual Manual

Kärcher HD 6/15-4 Service Manual Manual pdf 23 page image

English 5.906-565.0 Rev. 00 (12/12) 231 Sleeve2 Leakage boring Unscrew the sleeve (wrench size 21 mm).Note:If water leaks from the leakage boring during opera-tion, the entire mechanics of the pressure switchmust be replaced. Remove and clean the piston and spring.Note:The disc and gasket shown in the illustration some-times remain in the sleeve during the disassembly. Ifthis is the case, they must not be removed for instal-lation. Grease the skirt and the O-ring of the piston(grease 6.288-079). Reinstall the mechanics of the pressure switch. Dismount cylinder head (see "Dismounting thecylinder head"). Pull the low pressure gaskets off the piston (see"Replacing high and low pressure gaskets/replac-ing low pressure gaskets"). Loosen screws.CautionRisk of damage. Do not directly touch the ceramicpiston with pliers. If a tool is required for removal, usea piece of hose for protection. Pull off ceramic piston. Attach new ceramic piston. Apply soluble screw securing adhesive to thescrew or use a new screw with securing coating. Insert and tighten the screw (torque 9...11 Nm).7.13 Check / replace the mechanics of thepressure switch7.14 Replacing the ceramic piston