DeWalt DCN890 - Page 20

18
ENGLISH
SYMPTOM CAUSE FIX
Tool operates but does not drive
fasteners fully
Speed select setting in wrong position. Set speed to appropriate setting.
Tool not firmly applied to workpiece Apply adequate force to tool securing it tightly to workpiece. See
instruction manual.
Material and fastener length If the unit continues to stall (forcing the need to rotate the stall release
lever) choose the appropriate material and fastener length that is not
too rigorous of an application.
Use of incorrect speed If trying to drive longer pins in soft woods, or driving pins into harder
materials using speed 1 - adjust speed setting to position 2.
Damaged or worn driver tip Replace driver with kit.
Damaged actuation mechanism See authorised service centre.
Tool operates, but no fastener
is driven
No pins in magazine Load pins in magazine.
Wrong size or angle pins Use only the recommended pins. Refer to Technical Data.
Debris in nosepiece Clean nose area and watch closely for small pieces of broken pins stuck
in the track.
Debris in magazine Clean magazine
Damaged or worn driver Replace driver with kit.
Worn magazine Replace magazine. See authorised service centre.
Damaged pusher spring Replace spring. See authorised service centre.
Jammed nail Wrong size or angle pins Use only the recommended pins Refer to Technical Data.
Magazine not secured after previous jam clear/
inspection
Make sure to magazine is latched properly.
Damaged or worn driver Replace driver.
Material and fastener length If the unit continues to stall (forcing the need to rotate the stall release
lever) choose the appropriate material and fastener length that is not
too rigorous an application.
Debris in nosepiece Clean nose area and watch closely for small pieces of broken pins stuck
in the track.
Damaged pusher spring Replace springs. See authorised service centre.
Dry fire lock out is engaged with only 2–4 pins
remaining in magazine and the user is applying
excessive force to contact trip, overriding the lockout
Load more pins in magazine to disengage dryfire lockout.
Tool is not yet run-in New tools can take 100–500 pins for parts to mesh and wear in
together. Drive shorter pins during this period if experiencing difficulty
fully driving pins.
Use of incorrect speed If trying to drive longer pins in soft materials, or driving pins into harder
materials using speed 1 - adjust speed setting to position 2 or 3.
Worn magazine Replace magazine. See authorised service centre.
Driver blade does not slide
backward and forward smoothly
through its firing path
Driver blade is bent Replace driver.