DeWalt DCN890 Original Instructions Manual page 52

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tool. This can seriously affect the life and performance of
the tool.
D WALT tools are properly lubricated at the factory and are
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ready for use. However, it is recommended that, once a year,
you take or send the tool to a certified service centre for a
thorough cleaning and inspection.
Cleaning

WARNING: Blow dirt and dust out of the main housing
with dry air as often as dirt is seen collecting in and around
the air vents. Wear approved eye protection and approved
dust mask when performing this procedure.

WARNING: Never use solvents or other harsh chemicals
for cleaning the non-metallic parts of the tool. These
chemicals may weaken the 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.
Optional Accessories

WARNING: Since accessories, other than those offered
by D WALT, have not been tested with this product, use
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of such accessories with this tool could be hazardous.
To reduce the risk of injury, only D
accessories should be used with this product.
Consult your dealer for further information on the
appropriate accessories.
Contact Trip Replacment (Fig. F)
For some applications, using a different contact trip may be
desirable.

WARNING: For your own safety, read the tool instruction
manual before using any accessory. Failure to heed
these warnings may result in personal injury and serious
damage to the tool and the accessory. When servicing this
tool, use only identical replacement parts.
To Replace contact Trip:
1. Push down on the contact trip release lever
2. Pull the contact trip 6 out of the nose of the tool.
3. Hold down the trip release lever
4. With the contact trip alignment marker facing up, as shown
in Figure K, insert the contact trip fully into the tool nose.
5. Release the lever.
DCN8901 Driver Blade Replacement Kit
(Fig. L, M, N)

WARNING: For your own safety, read the tool instruction
manual before using any accessory. Failure to heed
these warnings may result in serious personal injury and
damage to the tool and the accessory. When servicing this
tool, use only identical replacement parts.
NOTICE: All the mechanical parts of the driver replacment
kit are shown for convenience and verification of inclusion.
50
To change a Worn Driver Blade:
1. Using a T-20 Torx, loosen the four screws
2. Remove the four screws and the removable top stand
3. Remove housing end cap
4. Push up on the rear of the driver
5. Remove guide rods
6. Remove upper bumper assembly.
7. Lift the rear of driver until at an angle and pull the driver out.
8. Replace driver and follow steps in reverse to reassemble
9. Ensure new driver slides smoothly through the tool before
10. Return the driver, guide rods, bumpers, housing end cap,
WALT recommended
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Protecting the Environment
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be recovered or recycled reducing the demand for raw
materials. Please recycle electrical products and batteries
according to local provisions. Further information is available at
www.2helpU.com.
Rechargeable Battery Pack
This long life battery pack must be recharged when it fails
to produce sufficient power on jobs which were easily done
before. At the end of its technical life, discard it with due care for
our environment:
•
•
of the unit.
Refer to Figure L.
19 . Refer to Figure L.
then push the driver forward while holding it in this position
until it passes the upper bumper assembly
21 . Refer to Figure M.
Refer to Figure N.
full reassembly.
and removable top stand back onto the unit. It is important
to try the alignment of the driver and the flywheel before
screwing the housing end cap back on to the unit. This
can be done by connecting a battery and pushing then
releasing the nose of the unit against a bench or hard
surface. This will start the motor spinning.
nOTE: When the driver and the flywheel are correctly
aligned, you will hear the motor coast back down from
full speed. If the driver and the flywheel are not correctly
aligned, the motor may not start up, may slow down much
faster than normal along with a loud grinding noise from
the unit. If this happens remove and reseat the driver
making sure the bumpers are seated correctly.
WARNING: Always test the unit by firing 15 mm,
20 mm or 25 mm pins in Speed 1 into scrap material, to
ensure that the tool is working properly. If tool does not
operate properly, contact a recognised D
centre immediately.
Separate collection. Products and batteries marked
with this symbol must not be disposed of with normal
household waste.
Products and batteries contain materials that can
Run the battery pack down completely, then remove it from
the tool.
Li-Ion cells are recyclable. Take them to your dealer or a
local recycling station. The collected battery packs will be
recycled or disposed of properly.
18 on either side
.
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20 until you hear a click,
22 .
WALT service
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