Components (Fig. 1); Maintenance - DeWalt DW897 Instruction Manual

............. direct current
.................. Class I Construction
...................... (grounded)
.................. Class II Construction
...................... (double insulated)
BPM .............. beats per minute
SAVE THESE INSTRUCTIONS
Motor
Your D WALT tool is powered by a D
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with the nameplate marking. Voltage decrease of more than 10% will cause loss of power
and overheating. D WALT tools are factory tested; if this tool does not operate, check power
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supply.

COMPONENTS (Fig. 1)

WARNING: Never modify the power tool or any part of it. Damage or personal injury could
result.
A. Head
B. Punch
C. Shoe
D. Die
E. Punch guide
F. Paddle switch
G. Switch lock button
INTENDED USE
The DW897 16-gauge nibblers are designed for professional cutting at various work sites (i.e.,
construction sites). DO NOT use under wet conditions or in presence of flammable liquids or
gases.
These 16-gauge nibblers are professional power tools. DO NOT let children come into contact
with the tool. Supervision is required when inexperienced operators use this tool.
Switches (Fig. 1)
To start tool, depress the paddle switch (F). To turn the tool off, release the paddle. The paddle
switch can be locked on by engaging the lock button (G) located near the rear of the tool, while
holding the paddle depressed. Always be sure that the tool is not locked on before plugging in. To
turn the tool off when it is locked on, squeeze and release the paddle once.
OPERATION (Fig. 1, 2)
WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect
tool from power source before making any adjustments or removing/installing
attachments or accessories.
Lubricate surface of material with oil. The profile nibbler is designed to cut corrugated, flat, and
box steel forms.
The tool is factory assembled with the punch (B) oriented forward for cutting flat and shallow
corrugated material. To cut deeper corrugated metals and box sections, rotate the head (A) 90º
to either side to use tool sideways.
The shoe (C) can be aligned in three positions: left, forward, and right.
To rotate the head (A), loosen the set screw (J). Turn the head in the desired direction.
NOTE: Do not rotate the head (A) in a complete circle as this will change the punch (B) engage-
ment in the die.
Rotate the shoe (C) and turn the set screw (J) in until you feel the set screw engage a recess in
the shoe. Tighten the set screw firmly. Periodically recheck this screw for tightness.
Sharpening Punches (Fig. 2)
Never cut with a blunt, dull punch (B) or die (D). Punches can be sharpened up to 1/8" (3 mm).
To remove the punch (B), loosen the head set screw (J) about 4-5 turns. Slide the shoe (C)
assembly from the head (A). Unscrew the punch (B) from the connecting rod bushing (I).
Punch may be resharpened carefully on a bench grinder with a fine grit wheel. Be careful that
the punch does not become shorter than the minimum length of 2.44 inches (2-7/16 inches or
61 mm). Punches shorter than this will not engage the die sufficiently and must be replaced. The
ground face must be square to the punch axis. After grinding, carefully stone the ground edges
to remove burrs. Do not round over corners.
Reassembly of Nibbler Head (Fig. 2)
Screw the punch (B) fully into the connecting rod bushing (I). Slide the shoe (C) assembly
over the end of the punch (B) and into the head (A). NOTE: Lubrication groove in punch face
must not be exposed at front of shoe (C). Turn the shoe to desired cut orientation. Tighten set
screw (J). Next, check punch engagement.
Checking Punch Engagement (Fig. 2, 3)
Since the punch length is now changed, the punch engagement may have to be adjusted.
Check punch engagement by placing a flat blade screwdriver in the cam shaft (H) slot and
turning the shaft. Punch should dip .020" to .04" (.5 to 1.0 mm) into the die (D) at the full down
stroke position. Too much punch dip into the die will result in a loss of capacity (bottom of punch
will not clear die enough on up stroke.)
Punch Engagement Adjustment (Fig. 2, 3)
If the punch engagement should need adjustment, loosen the set screw (J) and rotate shoe (C)
either clockwise (punch deeper into die) or counterclockwise (punch out of die). Tighten set
screw firmly. Turn cam shaft (H) with screwdriver in slot to check punch engagement (moving
punch fully down). Repeat as necessary.
Die Replacement
If the die becomes dull, replace it. Replace the old die by removing two screws at the front
(Fig. 2). Install new die and tighten the screws. Recheck the punch engagement and adjust
punch depth if necessary.
Wear Plate (Fig. 3)
This tool is equipped with a wear plate (K) to increase the life of the shoe (C). The wear plate (K)
fits between the shoe (C) and the punch (B). Anytime the punch (B), punch guide (E) or die (D)
is removed, inspect the wear plate (K). If it is worn, replace it.
To remove the wear plate (K), dissassemble the punch guide (E) and die (D). Turn cam
shaft (H) with screwdriver so that punch is fully up. Slide the wear plate (K) from behind the
punch (B). Insert a new wear plate (K). Turn the cam shaft (H) with screwdriver to move punch
fully down. Replace punch guide (E) and die (D). Check punch engagement to die. Adjust punch
engagement, if necessary.

MAINTENANCE

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect
tool from power source before making any adjustments or removing/installing
attachments or accessories.
• Check that the punch and die are sharp. If either is dull, sharpen or replace.
• Check wear plate and replace if worn.
• Periodically dip the shoe in oil.
• This is a precision tool. Use it carefully and store it in a protected place.
Cleaning
WARNING: Blow dirt and dust out of all air vents with dry air at least once a week. Wear
proper ANSI Z87.1 (CAN/CSA Z94.3) eye protection and proper NIOSH/OSHA/MSHA
respiratory protection when performing this.
WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts
of the tool. These chemicals may weaken the plastic 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.
Lubrication
Self lubricating bearings are used in the tool and periodic relubrication is not required. However,
it is recommended that, once a year, you take or send the tool to a service center for a thorough
cleaning and inspection.
n o ..................no load speed
...................earthing terminal
..................safety alert symbol
.../min ............revolutions or
.......................reciprocation per minute
WALT -built motor. Be sure your power supply agrees
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FIG. 1
A
B
D
C
FIG. 2
A
H
I
B
J
D
E
C
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 WALT, recommended accessories should be used with this product.
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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 1-800-4-
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D WALT (1-800-433-9258) or visit our website www.dewalt.com.
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Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustments (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.
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 WALT (1-800-433-9258). This warranty does not apply to
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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 WALT tools are covered by our:
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1 YEAR FREE SERVICE
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.
90 DAY MONEY BACK GUARANTEE
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 become illegible or are
missing, call 1-800-4-D WALT for a free replacement.
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Définitions : lignes directrices en
matière de sécurité
Les définitions ci-dessous décrivent le niveau de danger pour chaque mot-indicateur
employé. Veuillez lire le mode d'emploi et porter une attention particulière à ces
symboles.
DANGER : indique une situation dangereuse imminente qui, si elle n'est pas
évitée, causera la mort ou des blessures graves.
AVERTISSEMENT : indique une situation potentiellement dangereuse qui, si elle
n'est pas évitée, pourrait se solder par un décès ou des blessures graves.
MISE EN GARDE : indique une situation potentiellement dangereuse
qui, si elle n'est pas évitée pourrait se solder par des blessures mineures ou
modérées.
MISE EN GARDE : utilisé sans le symbole d'alerte à la sécurité, indique une situation
potentiellement dangereuse qui, si elle n'est pas évitée pourrait se solder par des
dommages à la propriété.
POUR TOUTE QUESTION OU TOUT COMMENTAIRE RELATIF CET OUTIL OU À PROPOS
DE TOUT AUTRE OUTIL D WALT, COMPOSER SANS FRAIS LE : 1 (800) 4-D
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(1 (800) 433-9258)
Règles générales de sécurité concernant
les outils à piles
AVERTISSEMENT : Lire toutes ces directives. Tout manquement aux directives
suivantes pose des risques de choc électrique, d'incendie et/ou de blessure
grave. Le terme « outil électrique » dans tous les avertissements ci-après se rapporte
à votre outil électrique à alimentation sur secteur (avec fil) ou par piles (sans fil).
F
E
FIG. 3
A
B
C
K
WALT, have not been tested
E
WALT factory service center,
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WALT Power Tool, Laser, or
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G
H
E
D
WALT
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