English
14
TROUBLESHOOTING
BE sURE TO FOllOW sAFETY RUlEs AnD insTRUCTiOns
For assistance with your product, visit our website at www.dewalt.com for a list of service centers, or call
D
e
WALT
at
1‑800‑4‑
D
e
WALT
(1‑800‑433‑9258).
PROBlEM
POssiBlE CAUsE
sOlUTiOn
Fastener overdriving.
Power level too high / Fastener too short.
Use a lower powder load level number or a longer fastener.
Soft base material.
Check base material suitability section.
Tool does not fire.
Tool not depressed completely.
Contact an authorized D
e
WALT service center to have the tool
checked and/or serviced.
Firing pin damaged.
Replace damaged part(s).
Tool does not depress completely.
Damaged firing pin parts, ejector, etc. Parts
assembled improperly.
Check the parts for damage or improper assembly.
Power reduction or inconsistent
fastener penetration.
Piston does not fully return due to soft
base material.
Re-assemble the piston and nose. Avoid soft material such
as wood, etc..
Worn or damaged piston or bumper.
Replace piston or bumper.
Damaged or bent piston.
Remove and replace piston.
Load strip cannot be inserted into tool.
Improper loading.
Insert strip from the bottom of the tool handle.
Wrong caliber strip.
Use only short .27 caliber safety load strips.
Load strip will not advance.
Worn advance lever guide.
Replace advance lever guide. This should be performed by
qualified individuals.
Load will not fire when trigger is pulled.
Tool is not fully depressed.
Follow safety procedure for misfired load then attempt to
fully depress tool before pulling trigger.
Load will not fire when tool is fully
depressed and trigger is pulled.
Load is already fired.
Cycle tool.
Load misfire.
Follow safety procedure.
Broken firing pin.
Replace firing pin nut. This should be performed by
qualified individuals.
Broken or missing firing pin nut.
Replace firing pin nut. This firing pin nut should be
performed by qualified individuals.
Tool cannot be opened or cycled
Lack of proper cleaning.
Clean tool thoroughly.
Damaged or bent piston.
Remove and replace piston.
Broken or damaged parts.
Tag tool with warning "Defective - Do Not Use" place in
locked container and contact your D
e
WALT Authorized
representative for service.
Piston stuck in the forward position.
Piston has been overdriven and is jammed
in the barrel.
Tap the piston against a hard surface. Re-assemble and
adjust power/load to avoid overdriving fastener. Avoid soft
base material.
Chipped or damaged piston
Tool not held on work surface squarely. This
allows the piston to slip off the head of the
pin and cause damage to the piston.
Replace piston. Refer to
Replacing the Piston
and Bumper
.
NOTE:
Use the proper piston for the pins being driven.
DFD2701 Replacement Driver Piston for .300" Head Drive
Pins (Flat)
DFD2705 Replacement Driver Piston for 8 mm Head Drive
Pins (Domed)
Summary of Contents for DFD270
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