///Water leaks around the cutting head body
Cutting head & stream

Water leaks around the cutting head body

Leaks at the head usually come from O-rings or a loose nut.

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
01Worn O-ring or seal in the head Most likely

Static seals age.

How to check: Replace head O-rings.

PhotoArt. no.DescriptionReplaces OEMExcl. VAT
10007 Nozzle nut, Pneumatic Valve, 49863665
NutKMT
KMT 49863665 · KMT B2841 € 46.80
10116 Retaining nut, Nozzle filter 1/4", 05114145
NutKMT
KMT 05114145 € 46.80
10117 Nozzle filter body 1/4", 05114129
Valve bodyKMT
KMT 05114129 € 154.80
10577 Gland Nut, Nozzle tube 3/4'' , 20454351
NutKMT, Aquajet
KMT 20454351 € 82.80
10755 O-Ring, 3/8" x 1/2", AL Abrasive Nozzle, 05081518
O-ringKMT
KMT 05081518 € 2.40

02Nut not tight Possible

Loose parts leak.

How to check: Tighten as specified.

Related problems

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