Maintenance - DeWalt DW896 Instruction Manual

.................. 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
E
the nameplate marking.
Voltage decrease of more than 10% will cause loss of power and overheating. D
are factory tested; if this tool does not operate, check power supply.
COMPONENTS (Fig. 1, 2)
WARNING: Never modify the power tool or any part of it. Damage or personal injury could
result.
A. Punch
B. Die
C. Paddle Switch
D. Lock Button
INTENDED USE
The DW896 16-gauge nibbler has been 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 (C). To turn the tool off, release the paddle. The paddle
switch can be locked on by engaging the lock button (D) 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. 2–6)
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.
Make sure the knurled ring (F, Fig. 2) is tight prior to use. Keep fingers away from cutter and
other moving parts.
The nibbler cuts a slot in the work 6 mm wide so remember to compensate for this when marking
out and calculating material requirements.
When starting the cut from an edge, place the nibbler so the slot in the die engages the work and
the edge is against the punch, which is the moving part when cutting (Fig. 4).
Start the nibbler by depressing the paddle switch. Hold the body parallel to the work surface.
Exert only enough forward pressure to start the nibbler cutting and maintain this pressure.
Extra pressure will not increase the rate of cut as the amount of material removed at each cutting
stroke is fixed and the rate of cut is dependent only on the speed of the nibbler. The cutting line
of the work should be lightly coated with oil to lubricate the punch and die while cutting.
NOTE: Punch and die should be lubricated by immersing in a good quality cutting oil approxi-
mately every 30 feet of cutting.
When the cut is to be started or finished within the periphery of the work, a 1/2" (13 mm) hole
must first be drilled in the work at the start or finish point. This enables the die to be entered or
withdrawn as it is larger in diameter than the slot being cut in the work (Fig. 5).
Circular holes should be cut in the manner shown in Figure 6, starting at the 1/2" (13 mm) diam-
eter hole within the circle.
Setting the Cutter (Fig. 2, 3)
The cutter can be set to cut in any direction relative to the body. Release the set screw in the
knurled ring (F, Fig. 2) with key provided and unscrew the ring by rotating in a counterclockwise
direction as viewed from the cutter.
Loosen ring just enough to be able to rotate the die (B, Fig. 3). Set the die so that the connecting
web (E) is on the opposite side of the direction of cut. Fully tighten the knurled ring and lock by
tightening the set screw.
Punch and Die Replacement (Fig 7, 8)
After a period of cutting, the punch will become blunted and require replacement. At the same
time, check the die for sharpness and replace if necessary.
1. To remove the die, release the knurled ring (F, Fig. 7). Having removed the die (B), rotate the
motor by turning the armature fan, accessible through the side cooling slot, until the punch
retaining nut is clear of the face of the gearbox.
2. With the spanner provided, release this nut (G) counterclockwise and remove the punch (A),
Figure 8. Assemble in reverse order.

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.
• 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
Your tool was properly lubricated before leaving the factory. In from two to six months,
depending upon use, take or send your tool to a D
service organization for a complete cleaning, inspection and relubrication.
Tools used constantly on production or heavy duty jobs or exposed to heat may require more
frequent lubrication. Tools "out of service" for long periods should be relubricated before being
put back into service.
Motor Brushes
When the brushes on this tool become worn out, the tool will automatically stop and prevent
damage to the motor. Brush replacement should be performed by D
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.
E
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.
...................earthing terminal
..................safety alert symbol
.../min ............revolutions or
.......................reciprocation per minute
WALT-built motor. Be sure your power supply agrees with
E
WALT Service Center or other qualified
E
WALT service centers.
E
WALT, have not been tested
E
WALT factory service center,
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FIG. 1
WALT tools
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A
FIG. 2
FIG. 4
FIG. 6
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.
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
C
D
B
FIG. 3
F
DIRECTION OF CUT
SENS DE COUPE
DIRECCION DE CORTE
FIG. 5
FIG. 7
FIG. 8
A
G
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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C
B
E
F
B
WALT Power Tool, Laser, or
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