///Water drips on the part at the end of the cut
On/off valve

Water drips on the part at the end of the cut

Water after shut-off marks the part and wets abrasive.

Safety first: Switch off the pump, release all pressure (open the on/off valve or bleed-down valve) and lock out before you open any high-pressure part. Never put a hand or tool near a running jet.
1Check the causes, most likely first 0 of 2 checked
01On/off valve closes slowly Most likely

The valve needs too long to close.

How to check: Check air exhaust and springs.

PhotoArt. no.DescriptionReplaces OEMExcl. VAT
10021 Spring kit, Pneumatic Valve Actuator (6x), 05054119
SpringKMT
KMT 05054119 · KMT VL10177798 € 17.88
12684 Compression Spring, HD000200
SpringSTM
STM HD000200 € 8.64
02Leaking seat Possible

Water passes the closed valve.

How to check: Inspect stem and seat.

Related problems

General advice based on manufacturer manuals and service practice. Always follow the manual of your machine. Not sure? .