///The focusing tube keeps clogging
Abrasive feed

The focusing tube keeps clogging

Repeated clogging comes from the abrasive or from water in the abrasive line.

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 3 checked
01Wet or oversized abrasive Most likely

Grains larger than about 1/3 of the tube bore block it.

How to check: Keep abrasive dry; check grain size.

PhotoArt. no.DescriptionReplaces OEMExcl. VAT
10857 Tubing, Flexible, Clear, .38, Abrasive, 49885361
TubeKMT, Flow, H2O, Intermac
H2O 606116-1 · KMT 49885361 € 15.00
11947 Abrasive feed tube, 05076989
TubeKMT
05076989 € 43.20
12350 Metering disks FLOW sandfeeder, 009931-1
Bushing & ringFlow
009931-1 € 130.80
12555 Metering Valve Rubber Stopper, A-11073
Bushing & ringFlow
Flow A-11073 € 5.00
12560 Tubing, Flexible, Clear, 1/4", Abrasive, 100100
TubeOMAX
OMAX 100100 € 7.80

02Too much abrasive Possible

The feed rate is higher than the jet can carry.

How to check: Do a weigh test and lower the rate.

03Debris in the hopper Possible

Packaging or dirt enters the feed.

How to check: Screen the abrasive when filling.

Related problems

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