Hilti DX 462 Mode D'emploi page 33

Fault
Base material is spalling
en
Damaged nail head
Nail does not
penetrate surface
Nail does not hold in base
material
Nail breaks
28
Printed: 08.07.2013 | Doc-Nr: PUB / 5069845 / 000 / 02
Cause
■ High strength concrete
■ Hard and/or large aggregate in
concrete
■ Old concrete
■ Driving power too high
■ Wrong piston used
■ Damaged piston
■ Driving power too low
■ Application limit exceeded
(very hard surface)
■ Unsuitable system
■ Thin steel base material
(4 to 5 mm steel)
■ Driving power too low
■ Application limit exceeded
(very hard surface)
Possible remedies
■ Stud application
Use spall stop:
X-SS....
■ Nail application
Use shorter nail
Use DX-Kwik (predrill)
■ Reduce power setting
■ Use lighter cartridge
■ Check nail/piston combination
■ Change piston
■ Use a higher power setting or
heavier cartridge
■ Use stronger nail
■ Change to single fasteners
■ Switch to more powerful system
e.g. DX 76 PTR
■ Use a different power setting or
different cartridge
■ Use a nail suitable for thin steel
base materials, e.g. X-EDNK 20
P8TH
■ Try higher power setting or
heavier cartridge
■ Use shorter nail
■ Use stronger nail