DeWalt DW251 Manual De Instrucciones página 5

DEPTH ADJUSTMENT
1. For washer head screws: rotate adjustment collar until end of nutsetter is flush with end
of locator.
2. For large washer head and sealer screws: adjust as above until nutsetter is recessed
approximately 1/16" into the locator.
3. Test drive a fastener in scrap material to determine if seating is correct.
4. Adjust following the graphic printed on the tool.
VERSA CLUTCH™ UNITS
(DW267, DW268, DW268-220, DW268G,
DW269)
External adjustment of all Versa Clutch™ units
for a wide range of fastener sizes is fast and
easy as follows (see Figure 5):
1. Pull forward, then rotate collar in increase
direction (stamped on adjustment collar) to
increase the amount of clutch engagement
and torque output.
2. Maximum rotation of the collar in the increase direction results in full clutch engagement
and maximum torque output and fastener capacity. Collar and adjustable stop will not
screw off clutch housing.
3. Test drive a fastener into a scrap piece to check proper fastener seating. It is normal after
a period of use to require a slightly different collar setting due to wear on the clutch faces.
NOTE: With Versa Clutch™, the operator has the ability to "override" clutch ratchet if a
fastener hits a wood knot, variable hardness in steel work pieces or incorrect pilot holes.
Increased operator pressure will usually cause the clutches to pick-up and continue to seat
the fastener. Further, a quick twist of the collar will change the clutch setting to overcome
most driving difficulties and will provide for immediate change in torque output giving the
operator the option to drive a wide range of fastener sizes.
Positive Clutch Units (DW281, DW282, DW284)
1. Install proper bit and set screwdriver for correct rotation.
2. Place fastener on bit and contact work.
3. Apply steady pressure on screwdriver to keep clutches engaged and bit in contact with
fastener.
4. Upon fastener seating, clutches will ratchet. Disengage bit from fastener.
Maintenance
CLEANING
With the motor running, blow dirt and dust out of all air vents with dry air at least once a
week. Wear safety glasses when performing this operation. Exterior plastic parts may be
cleaned with a damp cloth and mild detergent. Although these parts are highly solvent
resistant, NEVER use solvents. Drywall Screwdrivers: Depth locator and adjustment col-
lar should be removed and drywall dust blown out of the clutch housing area at least once
a week.
CHANGING CLUTCHES
1. Remove clutch housing by unscrewing (left hand
thread).
2. Clamp tool or clutch housing in a resilient
clamp.USE CARE, the clutch housing can be
easily damaged.
3. Remove round clutch retaining rings with a very
small screwdriver (see Figure 6).
FIG. 5
VERSA CLUTCH™
FIG. 6
4. Install new clutches and new retaining rings. (DW274 series only) Be careful to assem-
ble the intermediate clutch large end first toward the unit and then the spring. The
spring should run against the output clutch.
NOTE: If the output spindle slides toward inside of gear case, remove gear case and push
output spindle forward to expose retaining ring groove. Reassemble dead spindle spring
allowing no more than 1/4" projecting from end of spindle.
5.Relubricate clutches (see Parts Bulletin for D
LUBRICATION
All ball and needle bearings are factory lubricated for the life of the bearing.
CLUTCH LUBRICATION
1. Remove clutch housing by unscrewing (left hand thread).
2. Lightly brush clutch faces.
Accessories
Recommended accessories for use with your tool are available at extra cost from your
distributor or local service center.
CAUTION: The use of any non-recommended accessory may be hazardous.
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment
(including brush inspection and replacement) should be performed by authorized service
centers or other qualified service organizations, always using identical replacement parts.
Three Year Limited Warranty
D WALT will repair, without charge, any defects due to faulty materials or workmanship for
E
three years from the date of purchase. This warranty does not cover part failure due to nor-
mal wear or tool abuse. For further detail of warranty coverage and warranty repair infor-
mation, visit www.dewalt.com or call 1-800-4-D
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, D WALT tools are covered by our:
E
1 YEAR FREE SERVICE
D WALT will maintain the tool and replace worn parts caused by normal use, for free, any
E
time during the first year after purchase.
90 DAY MONEY BACK GUARANTEE
If you are not completely satisfied with the performance of your D
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.
FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are
missing, call 1-800-4-DEWALT for a free replacement.
3
WALT lubricants identification).
E
WALT (1-800-433-9258). This warranty
E
WALT Power Tool,
E