DeWalt DCN920 Instruction Manual page 17

sYMPTOM CAUsE
Drive blade Jammed nail and driver blade is stuck in
continues to down position.
get stuck in
Damaged driver/return assembly.
down position
Material and fastener length.
Debris in nosepiece.
Tool is not yet run‑in.
Tool operates Depth adjust set too shallow.
but does not
Tool not firmly applied to workpiece.
drive fasteners
fully
Bump mode selected with long nails.
Material and fastener length.
Damaged or worn driver blade tip.
Tool used with no‑mar tip.
Damaged actuation mechanism.
Tool is not yet run‑in.
Tool operates, No nails in magazine.
but no fastener
Wrong size or angle nails.
is driven
Debris in nosepiece.
Debris in magazine.
Worn magazine.
Damaged or worn driver blade.
Damaged pusher spring.
FiX
Use stall release lever, clear and jammed nails, and return
driver blade manually if necessary.
Replace driver/return assembly. Contact a D
authorized service center.
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.
Clean nose area and watch closely for small pieces of
broken nails stuck in the track.
New tools can take 500–1000 nails for parts to mesh and
wear in together. Drive shorter nails during this period if
experiencing difficulty driving nails flush.
Rotate depth adjust to a deeper setting.
Apply adequate force to tool securing it tightly to
workpiece. Refer to instruction manual.
Select sequential mode.
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.
Replace driver/return assembly. Contact a D
authorized service center.
Remove no‑mar tip.
Contact a D WALT authorized service center.
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New tools can take 500–1000 nails for parts to mesh and
wear in together. Drive shorter nails during this period if
experiencing difficulty driving nails flush.
Load nails in magazine.
Use only the recommended nails. Refer to Specifications.
Clean nose area and watch closely for small pieces of
broken nails stuck in the track.
Clean magazine.
Replace magazine. Contact a D
service center.
Replace driver blade. Contact a D
service center.
Replace spring. Contact a D
service center.
English
WALT
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WALT
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WALT authorized
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WALT authorized
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WALT authorized
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