Kärcher HDS 7/12 M Service Manual

Contents

Kärcher HDS 7/12 M Service Manual Manual pdf 57 page image

English 5.906-432.0 Rev. 00 (06/15) 571 Connection trigger gun2 Connecting pin3 Ceramic disc on gun side4 Ceramic disc on spray pipe side5 Casing of rotating regulator6 Handle of rotary regulator7 Spray lance connectionThe pressure and volume regulation is designed as a rota-ry regulator between the trigger gun and the spray lance.There are two ceramic discs within the high pressure chan-nel.A ceramic disc is rigidly connected with the connection ofthe trigger gun. The other ceramic disc is connected to therotating regulator and therefore adjustable. Offset holes inthe ceramic discs can adjust the flow volume and the pres-sure when rotating the discs.This illustration shows the two overlapping ceramic discsand the water flow (blue) with different opening angles(from 0° to 90°).With the minimal setting, the water flows through a smallhose in the middle of the ceramic discs.NoteThe rotary regulator cannot be repaired and must be re-placed as a complete unit.Water flow with opening angle 0° - 90°6.27 Pressure and volume regulation