Operation; Maintenance - DeWalt DW252 Instruction Manual

Motor
Be sure your power supply agrees with the nameplate marking. Voltage decrease of more than
10% will cause loss of power and overheating. D
not operate, check power supply.
COMPONENTS
WARNING: Never modify the power tool or any part of it. Damage or personal injury could result.

OPERATION

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
Switch
To start tool, depress the trigger switch, shown in Figure 1. To stop tool, release the switch. The
variable speed trigger switch permits speed control. The farther the trigger switch is depressed, the
higher the speed of the tool.
To lock the switch in the on position for continuous operation, depress the trigger switch and
push up the locking button. The tool will continue to run. To turn the tool off, from a locked on
condition, squeeze and release the trigger once. Before using the tool (each time), be sure that
the locking button release mechanism is working freely. Be sure to release the locking mechanism
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.The reversing lever is used
to reverse the tool for backing out screws. It is located above the trigger, shown in Figure 1. To
reverse the screwdriver, turn it off and push the reversing lever to the right (when viewed from the
back of the tool). To position the lever for forward operation, turn the tool off and push the lever to
the left.
Dead Spindle Action
All D WALT screwdrivers provide a dead output spindle to permit fasteners to be located easily in
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the driving accessory. Clutches are held apart by light spring pressure permitting the driving clutch
to rotate without turning the driven clutch and accessory. When sufficient forward pressure is
applied to the unit, the clutches engage and rotate the spindle and accessories. A reversing switch
makes it possible to drive or loosen either right or left hand screws.
Accessory Assembly
The 1/4" hex drive ball lock chuck is used on all depth sensitive and drywall screwdrivers. Assemble
accessories by engaging the hex spindle and tapping lightly on the accessory until it snaps in place.
Usually pliers are required to remove the accessory by pulling forward. The 1/4" hex drive quick
change chuck (Figure 2), is used on all Versa Clutch™ units. A ball retainer provides positive locking
of all accessories in the chuck. Pull forward on the ball retainer and hold while inserting or removing
accessories. Release for positive accessory retention.
Depth Sensitive Units
(DW252, DW253, DW255, DW257, DW272, DW276
TO CHANGE BIT HOLDERS
1. Pull forward on adjustment collar and remove from clutch housing.
2. Pull bit holder straight out with pliers if it is difficult to remove.
3. Push new bit holder into spindle until ball lock snaps in groove in bit holder shank.
4. Replace adjustment collar by snapping over retaining ring.
NOTE: Align ribs on inside of depth locator with grooves in clutch housing before snapping into
place.
CHANGING BIT TIP
1. Pull forward on adjustment collar and remove it from clutch housing (see Figure 3).
2. Use pliers to remove worn bit and install new bit tip.
DEPTH ADJUSTMENT
Follow the graphic on the collar to increase or decrease the fastening depth. To seat the screw
deeper in the workpiece, turn the adjustment collar to the right. To seat the screw higher in the
workpiece, turn the adjustment collar to the left.
Nutsetting Units
(DW260, DW266)
INSTALLING AND CHANGING NUTSETTERS AND LOCATORS
Depth Sensitive Units for Drill Point Screws
1. To change or install a new nutsetter:
a. Pull forward on adjustment collar and remove from clutch housing.
b. Pull nutsetters straight out with pliers
c. Select nutsetter size desired.
d. Two locators are supplied, a 9/16" ID for 3/8" nutsetters and 1/2" ID for 5/16" nutsetters.
Match locator to desired size nutsetter or bit holder.
2. Place nutsetter into clutch housing and push end of nutsetter until ball lock snaps into groove
of nutsetter shank.
3. Reassemble adjustment collar by snapping over springs (see Figure 4).
NOTE: Align ribs on inside of depth locator with grooves in clutch housing.
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, 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, 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

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
Cleaning
WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week. To
minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when performing
this.
WALT tools are factory tested; if this tool does
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)
FIG. 1
FIG. 3
FIG. 4
NUTSETTER
TOURNE-ÉCROUS
EL DADO
FIG. 6
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. Drywall Screwdrivers: Depth locator and adjustment collar 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).
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.
4. Relubricate clutches (visit http://servicenet.dewalt.com for DEWALT lubricants identification).
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
WARNING: Since accessories, other than those offered by D
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
Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-D
9258) or visit our website: www.dewalt.com.
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush
inspection and replacement) should be performed by a D
authorized service center or other qualified service personnel. Always use identical replacement
parts.
Register Online
Thank you for your purchase. Register your product now for:
• WARRANTY SERVICE: Registering your product will help you obtain more efficient warranty
service in case there is a problem with your product.
• CONFIRMATION OF OWNERSHIP: In case of an insurance loss, such as fire, flood or theft,
your registration of ownership will serve as your proof of purchase.
• FOR YOUR SAFETY: Registering your product will allow us to contact you in the unlikely event
a safety notification is required under the Federal Consumer Safety Act.
Register online at www.dewalt.com/register.
Three Year Limited Warranty
D WALT will repair, without charge, any defects due to faulty materials or workmanship for three
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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 accessories or
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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
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 in the packaging, call the
local company or see website for warranty information.
FIG. 2
FIG. 5
VERSA CLUTCH™
WALT, have not been tested with
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WALT
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WALT (1-800-433-
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WALT factory service center, a D WALT
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WALT Power Tool, Laser, or Nailer
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