DeWalt D51257K User Manual page 11

FIG. 2
FIG. 3
A
E
B
C
C
FIG. 6B
FIG. 6A
I
I
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: Use of this tool can generate and/or disburse dust, which may cause serious
and permanent respiratory or other injury. Always use NIOSH/OSHA approved respiratory
protection appropriate for the dust exposure. Direct particles away from face and body. Always
operate tool in well-ventilated area and provide for proper dust removal. Use dust collection
system wherever possible.
WARNING: ALWAYS USE SAFETY GLASSES. Everyday eyeglasses are NOT safety
glasses. Also use face or dust mask if 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 respiratory protection.
BEFORE OPERATING THIS TOOL, CAREFULLY READ AND UNDERSTAND ALL
INSTRUCTIONS IN IMPORTANT SAFETY INSTRUCTIONS.
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 bump action mode (contact 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
a sequential action trigger. For a replacement trigger contact your authorized service center or
call 1-800-4-D WALT (1-800 433-9258).
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The gray trigger with imprinted on the side, (Cat.# D510002 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.# D510004 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.
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 appropriate trigger assembly to be installed on the tool.
2. Insert the trigger assembly 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
WARNING: Read the section titled Important Safety Instructions for Pneumatic Tools
at the beginning of this manual. Always wear eye and ear protection when operating this tool.
Keep the nailer pointed away from yourself and others. For safe operation, complete the
following procedures and checks before each use of the nailer.
NOTE: These nailers are designed to be used without oil. If preferred, 5–7 drops of oil may be
used on o-rings, rubber parts and can be applied to the air fittings.
CAUTION: To reduce the risk of damage to the tool, only use D
a non-detergent S.A.E. 20 weight oil. Oil with additives or detergent will damage tool parts.
1. Before you use the nailer, be sure that the compressor tanks have been properly drained.
2. Wear proper eye, hearing and respiratory protection.
3. Lock the pusher in the back position and remove all fasteners from the magazine.
4. 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 up position.
5. Check air supply. Ensure that air pressure does not exceed recommended operating limits;
70 to 120 psi, (4.9 to 8.3 bar, 5 to 8.5 kg/cm
6. Connect air hose.
7. Check for audible leaks around valves and gaskets. Never use a tool that leaks or has
damaged parts.
WARNING: To reduce the risk of personal injury, disconnect tool from air supply
before performing maintenance, clearing a jammed fastener, leaving work area, moving
tool to another location or handing the tool to another person.
Using the Lock-off (Fig. 4)
WARNING: To reduce the risk of injury, ALWAYS wear proper eye [ANSI Z87.1 (CAN/CSA
Z94.3)] and hearing protection [ANSI S12.6 (S3.19)] when operating this tool.
WARNING: 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. Serious personal injury may result.
WARNING: Lock off trigger, disconnect air line from tool and remove fasteners from
magazine before making adjustments or personal injury may result.
Each D WALT nailer is equipped with a trigger lock-off switch (F) which when rotated to
E
the right, prevents the tool from actuating. When the switch is centered, the tool will be fully
operational. The trigger should always be locked off whenever any adjustments are made or
when tool is not in use.
Loading the Tool
WARNING: Keep the tool pointed away from yourself and others. Serious personal injury
may result.
WARNING: Never load nails with the contact trip or trigger activated. Personal injury may
result.
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. 5)
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. Press the pusher button (N) to release and allow the nail follower (H) to fall behind the
nails.
Actuating Tool
WARNING: To reduce the risk of injury, ALWAYS wear proper eye [ANSI Z87.1 (CAN/CSA
Z94.3)] and hearing protection [ANSI S12.6 (S3.19)] when operating this 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 -
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 multiple
nails in sequence.
FIG. 4 FIG. 5
D
F
FIG. 7 FIG. 8
J
K
WALT nailers are assembled with
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WALT Pneumatic Tool Oil or
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2 ).
(GRAY)
WARNING: 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.
N
Adjusting Depth (Fig. 6)
G
WARNING: 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.
The depth that the fastener is driven can be adjusted using the depth adjustment next to the
H
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).
L
Clearing a Jammed Nail (Fig. 7)
M
WARNING: Lock off trigger, disconnect air line from tool and remove fasteners from
magazine before making adjustments or personal injury may result.
If a nail becomes jammed in the nosepiece, keep the tool pointed away from you and follow
these instructions to clear:
1. Lock off trigger.
2. Disconnect the tool from air supply.
3. Release pusher from behind nails.
4. Push down front latch (J) then pull up to open front door (K).
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.
NOTE: Should nails continue to jam frequently in nosepiece, have tool serviced by an
authorized D WALT service center.
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Cold Weather Operation
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. Lower air pressure to 80 psi (5.5 bar) or less.
5. Reconnect air and load nails into magazine.
6. Turn pressure up to operating level [not to exceed 120 psi (8.3 bar)] and use tool as
normal.
7. Always drain the compressor tanks at least once a daily.
NOTE: Please refer to Preparing the Tool under Operation if choosing to use oil.
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. 8)
The D WALT nailers include an integrated belt hook (L) and can be rotated to either side of the
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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 hex wrench, remove the end cap screws from the end cap (M) 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
WARNING: Lock off trigger, disconnect air line from tool and remove fasteners from
magazine before making adjustments or personal injury may result.
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 hex wrench or screwdriver.
NOTE: Please refer to Preparing the Tool under Operation if choosing to use oil.
Cleaning
WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic
parts of the tool. These chemicals may weaken the materials used in these parts. Use a cloth
dampened only with water and mild soap. Never let any liquid get inside the tool; never
immerse any part of the tool into a liquid.
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including
brush inspection and replacement) should be performed by a D
a D WALT authorized service center or other qualified service personnel. Always use identical
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replacement parts. Refer to the Troubleshooting Guide at the end of this section.
Accessories
WARNING: Since accessories, other than those offered by D
with this product, use of such accessories with this tool could be hazardous. To reduce the
risk of injury, only D
Recommended accessories for use with your tool are available at extra cost from your local
dealer or authorized service center. If you need assistance in locating any accessory, please
contact D WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-
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4-D WALT (1-800-433-9258) or visit our website www.dewalt.com.
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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
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
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.
LATIN AMERICA: This warranty does not apply to products sold in Latin America. For
products sold in Latin America, see country specific warranty information contained either in
the packaging, call the local company or see website for warranty information.
FREE WARNING LABEL REPLACEMENT: If your warning labels (Fig. 10) become illegible
or are missing, call 1-800-4-D
• Permettre à l'outil d'effectuer complètement son mouvement de recul après
chaque actionnement.
• Utiliser la détente pour l'actionnement en mode séquentiel.
• Lorsqu'on utilise l'« actionnement par coup » de la cloueuse, il faut toujours bien
maîtriser l'outil. Un positionnement imprécis de l'outil peut entraîner une décharge mal
dirigée d'une attache.
DÉTENTE À ACTION SÉQUENTIELLE
• Lorsqu'on utilise la détente par action séquentielle, ne pas actionner l'outil à
moins qu'il ne soit fermement appuyé contre la pièce.
• RÉGLAGE DE LA PROFONDEUR : pour réduire les risques de blessures graves
lors de l'actionnement intempestif de l'outil lorsqu'on tente de régler la profondeur,
TOUJOURS :
• verrouiller la détente;
• débrancher la source d'alimentation en air;
• éviter tout contact avec la détente lors des réglages.
• Ne pas enfoncer des clous à l'aveuglette dans les murs, les planchers et 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)
• Rester vigilant, faire attention au travail en cours et faire preuve de jugement dans
l'utilisation de tout outil électrique. Ne pas utiliser d'outil en cas de fatigue ou sous
l'emprise de drogues, d'alcool ou de médicaments. Un simple moment d'inattention en
utilisant un outil électrique peut entraîner des blessures corporelles graves.
AVERTISSEMENT : Les scies, meules, ponceuses, perceuses ou autres outils de
construction peuvent produire des poussières contenant des produits chimiques reconnus
par l'État californien pour causer cancers, malformations congénitales ou être nocifs au
système reproducteur. Parmi ces produits chimiques, on retrouve :
• le plomb dans les peintures à base de plomb ;
• la silice cristallisée dans les briques et le ciment ou autres articles de maçonnerie ; et
• l'arsenic et le chrome dans le bois ayant subi un traitement chimique.
Daily Maintenance Chart
WALT, recommended accessories should be used with this product.
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WALT (1-800-433-9258). This warranty does not apply to
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WALT tools are covered by our:
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1 YEAR FREE SERVICE
90 DAY MONEY BACK GUARANTEE
WALT for a free replacement.
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WALT factory service center,
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WALT, have not been tested
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WALT Power Tool, Laser, or
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