Hilti DX 9-ENP Original Bedienungsanleitung Seite 44

7.5 Criteria for replacement of wear parts
Piston and piston stopper wear criteria
Status
New condition
Worn
Always replace the pis-
ton and piston stopper
together.
Nosepiece wear criteria
Status
New condition
Worn
Have it replaced by
Hilti Service
36 English
Illustration showing example
Illustration showing example
Annotation
Signs of chipping at the tip / face
of the piston.
The piston has made a deep im-
pression (3 mm or more) in the
piston stopper.
Annotation
Obvious signs of chipping.
2241307
*2241307*