Operation; Maintenance - DeWalt D51256 Instruction Manual

623389-00,D51256,D51275 3/18/04 7:44 AM Page 3
FIG. 2 FIG. 3
A
E
B
C
D
C
FIG. 6
FIG. 7
I
H
G
J
Trigger
In accordance with the ANSI Standard SNT-101-2002, the D
with a sequential action trigger. However, a bump action trigger kit is included and attached to
the tool. For a replacement trigger contact your authorized service center or call 1-800-4-
D WALT.
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The gray trigger with imprinted on the side, (Cat.# D510022 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 trig-
ger 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.
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.
TRIGGER INSTALLATION (FIG. 3)
1. Select either the sequential or bump 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.

OPERATION

Preparing the Tool
1. Read Safety Instruction section of this manual.
2. LUBRICATE TOOL
a. Use D WALT Pneumatic Tool Oil or a non-detergent S.A.E. 20 weight oil. DO NOT use
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detergent oil or additives as they will damage O-rings and rubber parts.
b. Use a Filter and Regulator when possible.
c. Add 5 to 7 drops of oil in the air fitting a least twice a day (Fig. 4).
3. Wear eye and ear protection.
4. Ensure magazine is empty of all fasteners.
5. Check for smooth and proper operation of contact trip and pusher assemblies. Do not use
tool if either assembly is not functioning properly. NEVER use a tool that has the contact
trip restrained in the actuated position.
6. CHECK AIR SUPPLY: Ensure air pressure does not exceed recommended operating lim-
its; 70 to 120 psi, (4.9 to 8.3 bar, 5 to 8.5 kg/cm 2 ).
7. Keep tool pointed away from yourself and others.
8. Lock off trigger.
9. Connect air hose.
10. Check for audible leaks around valves and gaskets. Never use a tool that leaks or has
damaged parts.
Using the Lock-off (Fig. 5)
WARNING: Always wear eye and ear protection when operating tool.
Each D WALT nailer is equipped with a trigger lock-off switch (F) which when rotated to the
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right, prevents the tool from actuating. When the switch is centered, the tool will be fully oper-
ational. The trigger should always be locked off whenever any adjustments are made or when
tool is not in use.
Loading the Tool
CAUTION: Keep tool pointed in a safe direction when loading nails.
CAUTION: Never load nails with the contact trip or trigger activated.
The D WALT finish nailers are equipped with dual load magazines. The fasteners can be
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loaded using one of two methods:
LOAD AND LOCK METHOD (FIG. 6)
1. Lock off trigger.
2. Insert fasteners into the rear of the magazine (G).
3. Pull pusher (H) back until the nail follower falls behind the nails.
LOCK AND LOAD METHOD
1. Lock off trigger.
2. Pull pusher back until it locks in the the pusher latch.
3. Insert fasteners into the rear of the magazine.
4. Flip pusher forward to release and fall in behind the fasteners.
Actuating Tool
WARNING: Always wear eye and ear protection when operating tool.
The tool can be actuated using one of two modes: single sequential action trigger mode and
bump action trigger mode. The trigger installed on the tool as described in the Trigger section
of this manual determines the mode of operation.
SEQUENTIAL ACTION TRIGGER - (GRAY)
The sequential action trigger's intended use is for intermittent nailing where very careful and
accurate placement is desired.
To operate the nailer in sequential action mode:
1. Depress the contact trip firmly against the work surface.
2. Depress the trigger.
CAUTION: A nail will fire each time the trigger is depressed as long as the contact trip
remains depressed.
BUMP ACTION TRIGGER - (BLACK)
The bump action trigger's intended use is for rapid nailing on flat, stationary surfaces.
Using the bump action trigger, two methods are available: place actuation and bump
actuation.
To operate the tool using the PLACE ACTUATION method:
1. Depress the contact trip against the work surface.
2. Depress the trigger.
To operate the tool using the BUMP ACTUATION method:
1. Depress the trigger.
2. Push the contact trip against the work surface. As long as the trigger is depressed, the tool
will fire a nail every time the contact trip is depressed. This allows the user to drive multi-
ple nails in sequence.
CAUTION: Do not keep trigger depressed when tool is not in use. Keep the lock-off switch
rotated to the right (OFF) when the tool is not in use.
Adjusting Depth (Fig. 7)
The depth that the fastener is driven can be adjusted using the depth adjustment next to the
trigger of the tool.
WARNING: To reduce risk of serious injury from accidental actuation when attempt-
ing to adjust depth, ALWAYS:
• Lock OFF trigger.
• Disconnect air supply.
• Depress and hold depth adjustment lock button (I) before sliding the indexed depth
setting (J).
• Avoid contact with trigger during adjustments.
1. To drive the nail shallower, press the lock button and slide the depth adjustment bar down-
ward to the extent desired using the adjustment marks. Release the lock button.
FIG. 4
FIG. 5
Clearing a Jammed Nail (Fig. 8)
If a nail becomes jammed in the nosepiece, keep the tool pointed away from you
and follow these instructions to clear:
F
FIG. 8 FIG. 9
M
N
NOTE: Should nails continue to jam frequently in nosepiece, have tool serviced
by an authorized D
K Cold Weather Operation (Fig. 4)
L
When operating tools at temperatures below freezing:
1. Make sure compressor tanks have been properly drained prior to use.
2. Keep tool as warm as possible prior to use.
3. Make certain all fasteners have been removed from magazine.
4. Put 5 to 10 drops of D
WALT Nailers are assembled
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5. Lower air pressure to 80 psi or less.
6. Reconnect air and and load nails into magazine.
7. Actuate the tool 5 or 6 times into scrap lumber to lubricate O-rings.
8. Turn pressure up to operating level (not to exceed 120 psi) and use tool as normal.
9. Re-lubricate at least once daily.
10. Always drain the compressor tanks at least once a daily.
Hot Weather Operation
Tool should operate normally. However, keep tool out of direct sunlight as excessive heat can
deteriorate bumpers, O-rings and other rubber parts resulting in increased maintenance.
Belt Hook (Fig. 9)
The D WALT nailers include an integrated belt hook (M) and can be rotated to either side of
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the tool to accommodate left or right handed users. It can also be rotated out of the way when
not in use.
If the hook is not desired at all, it can be removed from the tool.
TO REMOVE BELT HOOK
1. Lock off trigger.
2. Disconnect the tool from air supply.
3. Using the appropriate allen wrench, remove the end cap screws from the end cap (N) of
the tool.
4. Remove the belt hook.
5. Replace end cap and gasket. Ensure that the three screws are tight.
6. Replace and tighten air fitting.

MAINTENANCE

ACTION Lubricate tool with 5-7 drops of D
WHY Prevents failure of O-rings.
HOW Insert drops into air fitting on end cap of tool.
ACTION Drain compressor tanks and hoses daily.
WHY Prevents accumulation of moisture in compressor and nailer.
HOW Open petcocks or other drain valves on compressor tanks. Allow any accumulated water
to drain from hoses.
ACTION Clean magazine, pusher, and contact trip mechanism.
WHY Permits smooth operation of magazine, reduces wear, and prevents jams.
HOW Blow clean with compressor air. The use of oils, lubricants periodically or solvents is not
recommended as they tend to attract debris.
ACTION Before each use, check to insure all screws, nuts and fasteners are tight and undamaged.
WHY Prevents jams, leaks and premature failure of tool parts.
HOW Tighten loose screws or other fasteners using the appropriate allen wrench or screwdriver.
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should
be performed by authorized service centers or other qualified service personnel, always using
identical replacement parts. Refer to the Troubleshooting Guide at the end of this section.
Accessories
Recommended accessories for use with your tool are available for purchase from your local
dealer or authorized service center. If you need assistance in locating any accessory for your
tool, contact: D
4-D WALT)
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CAUTION: The use of any other accessory not recommended for use with this tool could be
hazardous.
Three Year Limited Warranty
D WALT will repair, without charge, any defects due to faulty materials or workmanship for
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three years from the date of purchase. This warranty does not cover part failure due to normal
wear or tool abuse. For further detail of warranty coverage and warranty repair information,
visit www.dewalt.com or call 1-800-4-D
to accessories or damage caused where repairs have been made or attempted by others. This
warranty gives you specific legal rights and you may have other rights which vary in certain
states or provinces.
In addition to the warranty, D
D WALT will maintain the tool and replace worn parts caused by normal use, for free, any time
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during the first year after purchase. Nailer wear items, such as O-rings and driver blades, are
not covered.
If you are not completely satisfied with the performance of your D
or Nailer for any reason, you can return it within 90 days from the date of purchase with a
receipt for a full refund – no questions asked.
FREE WARNING LABEL REPLACEMENT: If your warning labels (Fig. 10) become illegible
or are missing, call 1-800-4-D
• Tenir enfoncé le bouton de verrouillage du réglage de la profondeur (fig. T1) avant de
faire glisser la bouton de réglage de la profondeur (fig. T2).
• Éviter tout contact avec la détente pendant les réglages (fig. T3).
• Ne pas enfoncer de clous à l'aveuglette dans les murs, les planchers ou autres zones
de travail. Des attaches enfoncées dans des fils électriques sous tension, de la plomberie
ou d'autres types d'obstacles peuvent entraîner des blessures. (fig. U)
• Demeurer alerte, prêter attention au travail à effectuer et faire preuve de bons sens
pendant l'utilisation d'un outil mécanique. Ne pas utiliser un outil lorsqu'on ressent
de la fatigue ou après avoir consommé des drogues, de l'alcool ou des médica-
ments. Un moment d'inattention durant l'utilisation d'outils mécaniques peut entraîner de
graves blessures.
AVERTISSEMENT : L'utilisation de ce produit exposera l'opérateur à des produits chimiques
qui, dans l'État de la Californie, sont reconnus cancérigènes et susceptibles d'entraîner des mal-
formations congénitales ou d'être nocifs pour le système reproducteur. Éviter de respirer les
vapeurs et les poussières et se laver les mains après utilisation.
AVANT D'UTILISER CET OUTIL, ON DOIT LIRE ET BIEN COMPRENDRE TOUTES LES
DIRECTIVES DE LA SECTION "CONSIGNES DE SÉCURITÉ IMPORTANTES".
ASSEMBLAGE
MISE EN GARDE : Verrouiller la détente, débrancher le tuyau d'air de l'outil et retirer les
attaches du chargeur avant de procéder au réglage.
Détente
En conformité avec la norme ANSI SNT-101-2002, les cloueuses D
avec une détente à action séquentielle. Cependant, une trousse de détente actionnée par coup
est incluse et fixée à l'outil. Pour obtenir une détente de rechange, communiquer avec un centre
de service autorisé ou composer le 1 800 4-D
La détente de couleur grise avec
détente à action séquentielle unique et permet à l'outil de fonctionner dans ce mode.
La détente de couleur noire avec
détente actionnée par coup et permet d'utiliser l'outil selon ce mode.
Pour la définition de l'utilisation de la détente à action séquentielle et de la détente actionnée
par coup, voir la section Actionnement de l'outil du présent guide.
DÉPOSE DE LA DÉTENTE (FIG. 2)
1. Verrouiller la détente.
2. To sink a nail deeper, press the lock button and slide the depth adjustment
bar upward to the extent desired using the adjustment marks. Release the
lock button.
1. Lock off trigger.
2. Disconnect air supply from tool and lock trigger.
3. Release pusher from behind nails.
4. Push down front latch (K) then pull up to open front door (L).
5. Remove bent nail, using pliers if necessary.
6. If driver blade is in the down position, insert screwdriver or other rod into
nosepiece and push driver blade back in position.
7. Remove rod and close front door.
8. Lift latch to secure door to nosepiece.
9. Reattach air supply.
10. Reinsert nails into magazine (see Loading the Tool).
11. Release pusher.
WALT service center.
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WALT Pneumatic Tool Oil in the air inlet.
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Daily Maintenance Chart
WALT Pneumatic Tool Oil
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WALT Industrial Tool Co., 701 East Joppa Road, Baltimore,MD 21286. (1-800-
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WALT (1-800-433-9258). This warranty does not apply
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WALT tools are covered by our:
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1 YEAR FREE SERVICE
90 DAY MONEY BACK GUARANTEE
WALT Power Tool, Laser,
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WALT for a free replacement.
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Français continué
WALT sont assemblées
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WALT.
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impression latérale, (trousse n° cat. D510022) est la
impression latérale, (trousse n° cat. D510020) est la