DeWalt DW891, DW890 instruction manual Operation, Maintenance

Page 2

 

 

 

 

 

 

 

direct current

no

no load speed

 

 

 

 

 

 

............

 

 

 

 

 

................

Class I Construction

 

 

...................

earthing terminal

 

 

 

 

 

 

 

(grounded)

 

 

...................

safety alert symbol

 

 

 

 

 

.................

Class II Construction

…/min

revolutions or reciprocation

 

 

 

 

 

 

 

(double insulated)

 

 

 

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. All DEWALT tools are factory tested; if this tool does not operate, check the power supply.

COMPONENTS (Fig. 1)

A.Trigger switch/variable speed switch

B.Swivel head shear

C.Lock-on control button

D.Blade

Variable Speed Switch (Fig. 1)

To turn the tool ON, squeeze the trigger switch (A). To turn the tool OFF release the trigger. Your tool is equipped with a variable speed switch which enables you to select the best speed for a particular application. The farther you squeeze the trigger, the faster the tool will operate. Use lower speeds for cutting tight curves or following precise guideline. Higher speeds are better for gradual curves and straight line cuts. For maximum tool life, use lower speeds only for short periods of time.

Lock-On Button (Fig. 1, 2)

WARNING: To reduce the risk of serious personal injury, be sure to release the switch lock button before disconnecting the plug from the power supply. Failure to do so will cause the tool to start immediately the next time it is plugged in. Damage or injury could result.

To lock the trigger in the on position for continuous operation, depress trigger, push up the lock button, and gently release the trigger.

To release the locking mechanism, depress the trigger fully, then release it. Before using the tool each time, be sure that the lock button release mechanism is working freely..

OPERATION

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from power source before installing and removing accessories, before adjusting or when making repairs. To prevent inadvertant operation, lock the trigger switch when the tool is not in use and when storing the tool.

For accurate work, always clamp or anchor the material to be cut. Line up one edge of the tool’s middle blade with the cutting line and advance blades into the material without forced effort or unnecessary pressure. A little practice will enable you to determine what forward pressure gives you the smoothest cutting. It is important to keep the lower surfaces of the side blades flat on the material being cut (Fig. 5). When cutting curves, do not tilt the tool; keep the side blades flat and level.The head of the shear will swivel to afford better access to the material. For best cutting efficiency, keep blades sharp.

Disassembly and Assembly

To remove shear head from motor, loosen three cap screws (E) using the hex wrench (F) provided. Remove shear head (B) by pulling head firmly forward. Slight twisting action may be required if head does not slide off easily.

To remove cutter blades from shear head, remove three cap screws (E) from shear housing

(G). Be careful not to lose rear spacer bushing when removing middle cap screw. Remove center blade (H) from housing by tapping blade gently towards the rear. The side knives (I) and side spacers (J) will now drop out of the housing.

To remove eccentric bearing assembly from shaft, use an appropriate wrench to loosen eccentric nut (K) by turning counterclockwise.

To install eccentric bearing assembly onto shaft, make sure the large, thin washer (L) is first inserted over shaft. Screw eccentric bearing assembly onto shaft and tighten with appropriate wrench. Lubricate bearing (N) with a good grade of bearing grease.

To install cutter blades into shear housing, place the side knives (I) and side spacers (J) into position in the shear housing (H). Insert center cap screw through side knife and side spacer with rear spacer bushing between them. Start cap screw into thread just enough to hold blades in place. DO NOT TIGHTEN. Insert spacer bushing into hole in center blade and lubricate. Install center blade into shear housing by tapping blade gently forward using a drift pin to line up hole in center blade with forward holes in housing. Insert and tighten forward cap screw making sure spacer bushing in center blade stays in position. Apply good grade of bearing grease to clevis or yoke in center blade where it rides on the eccentric bearing assembly. Insert rear cap screw into shear housing but do not completely tighten.

To install shear head assembly onto drive motor, make sure all cap screws are loosened about 3 or 4 complete turns. Place shear head onto unit and alternately tighten cap screws snugly to lock head assembly in place. It may be necessary to gently tap the shear head into place if it does not readily slip onto the nose of the power unit.

Adjustment (Fig. 5, 6)

SWIVEL HEAD

To better accomodate safe cutting at any angle, the shear head can be repositioned by loosening the three cap screws.

Once the screws are loosened, turn the shear head to the desired angle. Retighten the three cap screws before installing battery pack.

To adjust the curl of waste material, the left side knife has elongated holes. Adjustment may be necessary after changing blades or material being cut. Loosen cap screws and tap side knife either forward or backward so that curl of waste does not hit shear housing or work material while cutting.

MAINTENANCE

WARNING: To reduce the risk of serious personal injury, turn tool off and disconnect tool from power source before installing and removing accessories, before adjusting or when making repairs. To prevent inadvertant operation, lock the trigger switch when the tool is not in use and when storing the tool.

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

All ball bearings are factory lubricated to last the life of the tool. All sleeve and needle bearings receive their lubrication from grease in the gear case. Clean and re-lubricate gear case yearly or whenever servicing requires the gear case to be removed. Use type and quantity of grease shown on the parts bulletin packed with your tool.

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.

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.

FIG. 1

 

 

FIG. 2

B

 

 

 

 

 

 

C

 

 

A

 

 

 

C

 

D

 

 

 

 

 

F

I

FIG. 3

 

FIG. 4

 

 

G

 

 

 

 

 

 

J

 

E

 

H

 

 

 

I

 

K

 

 

L

N

 

 

 

 

 

FIG. 4

 

 

FIG. 5

ALTERNATELY TIGHTEN

TO SECURE

POUR FIXER SOLIDEMENT,

SERRER À TOUR DE RÔLE

APRIÉTELOS ALTERNADAMENTE

PARA FIJARLOS

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.

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.

POUR TOUTE QUESTION OU TOUT COMMENTAIRE RELATIF CET OUTIL OU À PROPOS DE TOUT AUTRE OUTIL DEWALT, COMPOSER SANS FRAIS LE : 1 (800) 4-DEWALT (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).

Image 2
Contents Additional Safety Rules Instructions for Shears Definitions Safety GuidelinesGeneral Safety Rules For All Tools Maintenance OperationConserver CES Directives FonctionnementEntretien Conserve LAS InstruccionesFuncionamiento MantenimientoExcepciones Póliza de GarantíaGarantía limitada de tres años Servicio Gratuito DE 1 AÑO