DeWalt DW898 instruction manual Save These Instructions

			direct current	no		no load speed
		.............
	..................		Class I Construction		...................	earthing terminal
......................			(grounded)		..................	safety alert symbol
	..................		Class II Construction	…/min		revolutions or
......................			(double insulated)	.......................		reciprocation per minute
BPM			beats per minute

SAVE THESE INSTRUCTIONS

Motor

Your DEWALT tool is powered by a DEWALT-built motor. Be sure your power supply agrees with the nameplate marking.

Voltage decrease of more than 10% will cause loss of power and overheating. DEWALT tools are factory tested; if this tool does not operate, check power 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.Cover ring

D.Die

E.Housing

F.Paddle switch

G.Switch lock button

H.Set screw

INTENDED USE

The DW898 14-gauge nibbler is 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.

The14-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. 2, 3)

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 nibbler is designed to cut flat and shallow corrugated metal.

NOTE: Punch and die should be lubricated by immersing in a good quality cutting oil approxi- mately every 30 feet (92 m) of cutting

The tool is factory assembled with the punch (B) oriented forward for cutting flat and shallow corrugated material.

The head (A) can be aligned in three positions: left, forward, and right (See Fig. 2). To rotate the head (A), loosen the set screw (H). Turn the head in the desired direction.

NOTE: Do not rotate the head in a complete circle as this will change the punch engagement in the die.

Rotate the housing (E) in the head (A) and turn the set screw (H) in until you feel the set screw engage a recess in the shoe. Tighten the set screw firmly. Periodically recheck this screw for tightness.

The nibbler head (A) is designed to fit through a 3/4" (19 mm) diameter hole for starting a cut in the middle of the work. Nibbling can be done in any direction from this hole. A punch width indi- cator is provided on the front of the housing to allow users to follow a line closely (Fig. 3).

The bottom of the housing has a .51" (13 mm) diameter template guide (L) to allow for use of templates. See Figures 2 and 3 for template guide surface. The thickness of the template should be such that the total thickness of the template and workpiece is 13/64" to 1/4" (5 to 6.5 mm). The shape of the template must be .1" (2.5 mm) away from the shape to be nibbled. The tool should be guided so that the outside diameter (.51" or 13 mm) of the housing always rests on the template.

Changing Punches (Fig. 2)

Never cut with a blunt, dull punch. Punches can be sharpened until they reach a length of 2.72" (69 mm). Shorter punches are unserviceable. To remove the punch (B), loosen the head set screw (H) about 4–5 turns (See Fig. 2). Slide the housing (E) from the head (A). Unscrew the punch (B) from the connecting rod bushing (J). 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 mini- mum length. 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 (J). Slide the housing (E) over the end of the punch and into the head. Turn the housing (E) to desired cut orientation. Tighten set screw (H). Next, check punch engagement.

Checking Punch Engagement (Fig. 2)

Since the punch (B) 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 (I) slot and turn- ing the shaft (See Fig. 2). Punch should dip .020" to .06" (.5 to 1.15 mm) into the die 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)

If the punch engagement should need adjustment, loosen the set screw (H) and rotate shoe either clockwise (punch deeper into die) or counterclockwise (punch out of die). Tighten set screw firmly. Turn cam shaft (I) with screwdriver in slot to check punch engagement (moving punch fully down). Repeat as necessary.

Die Replacement (Fig. 2)

If the die (D) becomes dull, replace it. Replace old die by pushing the cover ring (C) up and out of the die groove. Knock out the retaining pin under the cover ring with a drift punch. Pull die off the carrier shaft (K). Install new die (D) on carrier shaft (K). Align cross hole in die with groove in carrier shaft. Install pin. Snap cover ring (C) over die in groove provided.

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

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.

FIG. 1

A

		G
		H
		F
	B	E
		D
		C
FIG 2	A	FIG 3
		A
		I
I
J
		H
B		E
		E
		L
		B
		L
K		D
		D
		C
		C

Accessories

WARNING: Since accessories, other than those offered by DEWALT, have not been tested with this product, use of such accessories with this tool could be hazardous. To reduce the risk of injury, only DEWALT, recommended accessories should be used with this product.

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 DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4- DEWALT (1-800-433-9258) or visit our website www.dewalt.com.

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustments (including brush inspection and replacement) should be performed by a DEWALT factory service center, a DEWALT authorized service center or other qualified service personnel. Always use identical replacement parts.

Three Year Limited Warranty

DEWALT will repair, without charge, any defects due to faulty materials or workmanship for 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-DEWALT (1-800-433-9258). This warranty does not apply 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, DEWALT tools are covered by our:

1 YEAR FREE SERVICE

DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90 DAY MONEY BACK GUARANTEE

If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, 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.

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-DEWALT for a free replacement.

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.