25
en
Fault
Cause
Possible remedies
Fastener does not penetrate
deeply enough
Fastener penetrates too deeply
■
Fastener too short
■
Driving power too high
■
Fastener too long
■
Driving power too low
■
Use longer fastener
■
Reduce power setting
■
Use lighter cartridge
■
Use shorter fastener
■
Increase power setting
■
Use heavier cartridge
Base material is spalling
Nail bends
■
Hard and/or large aggregate in
concrete
■
Rebar close to surface of
concrete
■
Hard surface (steel)
■
High strength concrete
■
Hard and/or large aggregate in
concrete
■
Old concrete
■
Use shorter nail
■
Use thicker nail DNI => AL
■
Use stepped shank nail DAK
■
Nail application
Use shorter DAK nail
(for high-strength precast
concrete)
Damaged nail head
■
Driving power too high
■
Wrong piston used
■
Damaged piston
■
Reduce power setting
■
Use lighter cartridge
■
Check nail/piston combination
■
Change piston
