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3

allowed to recontact work surface before trigger is 

released an unwanted fastener will be fired.

  •  Choice of triggering method is important.

 Check 

the manual for triggering options. 

BUMP ACTION TRIGGER

 • 

When using the bump action trigger, be careful 

of unin tentional double fires resulting from tool 

recoil.

 Unwanted fasteners may be driven if the 

contact trip is allowed to accidentally re-contact the 

work surface. (Fig. T)

    TO AVOID DOUBLE FIRES:

  •  Do not engage the tool against the work 

surface with a strong force.

  •  Allow the tool to recoil fully after each 

actuation.

  • Use sequential action trigger.

  •  When “bump” actuating the framing nailer, 

always keep tool in control. 

Inaccurate placement 

of tool can result in misdirected discharge of a 

fastener.

SEQUENTIAL ACTION TRIGGER
    •   When using the sequential action trigger, do 

not actuate the tool unless the tool is placed 

firmly against the workpiece.

 

• 

DEPTH ADJUSTMENT: To reduce risk of 

serious injury from accidental actuation when 

attempting to adjust depth, ALWAYS;

    •   Lock OFF trigger.
    •   Disconnect air supply.
    •   Avoid contact with trigger during adjustments.

  •  Do not drive nails blindly into walls, floors 

or other work areas.

 Fasteners driven into live 

electrical wires, plumbing, or other types of 

obstructions can result in injury. (Fig. U)

  •  Stay alert, watch what you are doing and use 

common sense when operating a power tool. Do 

not use tool while tired or under the influence 

of drugs, alcohol, or medication. 

A moment of 

inattention while operating power tools may result 

in serious personal injury.

WARNING: 

Some dust created by power sanding, 

sawing, grinding, drilling, and other construction 

activities contains chemicals known to the State of 

California to cause cancer, birth defects or other 

reproductive harm. Some examples of these 

chemicals are:

•  lead from lead-based paints,
•   crystalline silica from bricks and cement and 

other masonry products, and

•   arsenic and chromium from chemically-treated 

lumber.

Your risk from these exposures varies, depending on 

how often you do this type of work.  To reduce your 

exposure to these chemicals: work in a well ventilated 

area, and work with approved safety equipment, such 

as those dust masks that are specially designed to filter 

out microscopic particles. 

WARNING: ALWAYS 

use safety glasses. Everyday 

eyeglasses are NOT safety glasses. Also use face or 

dust mask if cutting operation is dusty. ALWAYS WEAR 

CERTIFIED SAFETY EQUIPMENT:

•  ANSI Z87.1 eye protection (CAN/CSA Z94.3),
•  ANSI S12.6 (S3.19) hearing protection,
•  NIOSH/OSHA/MSHA respiratory protection.

BEFORE OPERATING THIS TOOL, CAREFULLY READ 

AND UNDERSTAND ALL INSTRUCTIONS IN THE 

“IMPORTANT SAFETY INSTRUCTIONS” SECTION.

Additional Safety Instructions For Australia 

And New Zealand

For Australia and New Zealand, nailers are supplied with 

full sequential action trigger ( gray) only

 

.

The bump fire trigger (

 

black) is available as an 

optional only for use in industry requiring bump fire 

(e.g. pallet manufacture).
 • 

Young children and the infirm.

 This appliance is 

not intended for use by young children or infirm 

persons without supervision. Young children should 

be supervised to ensure that they do not play with 

this appliance.

BEFORE OPERATING THIS TOOL, CAREFULLY READ 

AND UNDERSTAND ALL INSTRUCTIONS IN THE 

“IMPORTANT SAFETY INSTRUCTIONS” SECTION.

ASSEMBLY

WARNING: Lock off trigger, disconnect air line from 

tool and remove fasteners from magazine before 

making adjustments or personal injury may result.

Trigger 

WARNING: 

Keep fingers AWAY from trigger when not 

driving fasteners to avoid accidental firing. Never carry 

tool with finger on trigger. In “Contact Bump Actuation 

Mode” tool will fire a fastener if safety is bumped while 

trigger is depressed.
In accordance with the ANSI Standard SNT-101-2002, 

the D

E

WALT Nailers are assembled with a sequential 

action trigger. For a replacement trigger contact your 

authorized service center or call (AUS) 1800 654 155 

or (NZ) 0800 339258.

The

 gray trigger

 with   imprinted on the side, (Cat.# 

D510023 kit) is the single sequential action trigger and 

causes the tool to operate in this mode.
The 

black trigger

 with 

 imprinted on the side, 

(Cat.# D510020 kit) is the bump action trigger and 

permits the tool to be actuated in this manner.
For defining the use of the 

sequential action trigger

 and 

bump action trigger

, see the 

Actuating Tool

 section of 

this manual.

A

B

C

FIG. 2

TRIGGER REMOVAL (FIG. 2)

  1.  Lock off trigger.
  2.  Remove air from the tool.
  3.  Remove rubber grommet (A) from end of dowel pin 

(B).

  4.  Remove dowel pin.
  5.  Remove trigger assembly from trigger cavity under 

the handle of the tool housing.

D

E

C

FIG. 3

TRIGGER INSTALLATION (FIG. 3)

  1.  Select either the sequential or bump action trigger 

to be installed on the tool. Both triggers are 

included in the tool packaging.

  2.  Insert the trigger kit into trigger cavity.
  3.  Ensure that trigger spring (C) is placed around the 

trigger valve stem (E).

  4.  Align the holes of the trigger with the housing holes 

(D), then insert the dowel pin (B) through the entire 

assembly as shown.

  5.  Push the rubber grommet (A) onto the end of the 

dowel rod as shown.

Air Fitting

The D

E

WALT framing nailers have a standard 3/8

"

 pipe 

thread for the air fitting. The tool is assembled with a 3/8

"

 

to 1/4

"

 adapter installed in the end cap.

FIG. U

FIG. T

FIG. S

FIG. N

FIG. M

FIG. P

FIG. R

FIG. Q

FIG. O

Summary of Contents for D51276-XE

Page 1: ...D51276 XE 15 GAUGE 13 mm 63 5 mm 1 2 1 2 ANGLED FINISH NAILER D51257 XE 16 GAUGE 13 mm 63 5 mm 1 2 1 2 STRAIGHT FINISH NAILER INSTRUCTION MANUAL ...

Page 2: ...Height 10 7 272 0 mm 11 6 294 1 mm Width 3 5 88 9 mm 3 5 88 9 mm Length 11 8 299 2 mm 13 330 2 mm Weight 3 9 lbs 1 77 kg 3 85 lbs 1 75 kg Recommended Operating Pressure 70 120 psig 4 9 to 8 3 bar 70 120 psig 4 9 to 8 3 bar Air consumption per 4 5 cfm 100 psi 6 0 cfm 100 psi 100 cycles 127 l m 6 9 bar 170 l m 6 9 bar Loading capacity 100 Nails 100 Nails TOOL SPECIFICATIONS D51257 16G Finish Nailer ...

Page 3: ...oper maintenance of the tool Always operate the tool in a clean lighted area Be sure the work surface is clear of any debris and be careful not to lose footing when working in elevated environments such as rooftops Do not drive fasteners near edge of material The workpiece may split causing the fastener to ricochet injuring you or a co worker Be aware that the nail may follow the grain of the wood...

Page 4: ... BEFORE OPERATING THIS TOOL CAREFULLY READ AND UNDERSTAND ALL INSTRUCTIONS IN THE IMPORTANT SAFETY INSTRUCTIONS SECTION Additional Safety Instructions For Australia And New Zealand For Australia and New Zealand nailers are supplied with full sequential action trigger gray only The bump fire trigger black is available as an optional only for use in industry requiring bump fire e g pallet manufactur...

Page 5: ...WAYS Lock OFF trigger Disconnect air supply Avoid contact with trigger during adjustments The depth that the fastener is driven can be adjusted using the depth adjustment next to the trigger of the tool 1 To drive the nail shallower rotate the depth setting wheel I to the right Fig 6A 2 To drive a nail deeper rotate the depth setting wheel I to the left Fig 6B J K FIG 7 Clearing a Jammed Nail Fig ...

Page 6: ...on and proper NIOSH OSHA MSHA respiratory protection when performing this WARNING When cleaning use only a damp cloth on non metallic parts Many household cleaners contain chemicals which could seriously damage non metallic parts and o rings Also do not use gasoline turpentine lacquer or paint thinner dry cleaning fluids or similar products which may seriously damage non metallic parts and o rings...

Page 7: ...gs using O ring Repair Kit Cat D512571 16 GA D512761 15 GA Exhaust port blocked or clogged Disconnect air remove exhaust plate from top of tool clean port Skipping fasteners intermittent feed Air restricted Check air supply and couplers Nosepiece screws loose Tighten nosepiece screws using appropriate hex wrench Wrong size angle fasteners Use only recommended fasteners Dirty magazine Clean magazin...

Page 8: ...0800 339258 DEC08 Part No N005873 D51857 XE D51876 XE Copyright 2008 DEWALT The following are trademarks for one or more DEWALT power tools the yellow and black color scheme the D shaped air intake grill the array of pyramids on the handgrip the kit box configuration and the array of lozenge shaped humps on the surface of the tool ...

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