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.
NOTICE: When cleaning, use only a damp cloth on plastic parts. Many household cleaners contain
chemicals which could seriously damage plastic parts. Also, do not use gasoline, turpentine, lacquer
or paint thinner, dry cleaning fluids or similar products which may seriously damage plastic parts.
Never let any liquid get inside the tool; never immerse any part of the tool into a liquid.
CHARGER CLEANING INSTRUCTIONS
WARNING: Shock hazard. Disconnect the charger from the AC outlet before cleaning. Dirt and
grease may be removed from the exterior of the charger using a cloth or soft non-metallic brush. Do
not use water or any cleaning solutions.
Lubrication
NOTICE: NEVER spray or in any other way apply lubricants or cleaning
solvents inside the tool. This can seriously affect the life and performance of the
tool.
D
WALT tools are properly lubricated at the factory and are ready for use.
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However, it is recommended that, once a year, you take or send the tool to a
certified service center for a thorough cleaning and inspection.
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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DCN6901 RETURN SPRING REPLACEMENT KIT
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 spring replacment kit are shown for convenience and
verification of inclusion. The kit also contains a packet of Loctite adhesive for use in step 9. Refer to
Fig. 20.
TO CHANGE BROKEN RETURN SPRINGS:
NOTE: Springs should be replaced as a pair, using only the correct D
replacement kit.
1. Using the key (K) provided, loosen the two screws (aa) on either side of the unit. Refer to
Figure 15.
2. Remove the return system (bb) from the unit. Refer to Figure 16.
FIG. 15
FIG. 16
K
aa
3. Slide the spring rail clip (cc) off of the spring rail (dd). Refer to figure 17.
4. Twist and remove the Spring Bumper (ee) and remove the washer (ff) and return spring (gg). Refer
WALT, have not been tested with
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5. Mount the new return spring and washer on to the spring rail (dd). While compressing the spring
WALT accessory spring
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6. Mount the new spring rail clip securely and position the bumper against the clip.
7. Repeat steps 3–6 for the second spring.
8. Slide the return system (bb) back into the unit. It is important to try the alignment of the profile
bb
9. Once the return system is correctly seated, open the provided sachet of Loctite
11
to figure 18.
FIG. 17
FIG. 18
cc
cc
ee
dd
hh
ee
ff
gg
with the washer near the opposite end of the rail, twist on the new spring bumper until it is past
the groove (hh) for the spring rail clip.
NOTE: Check the return of the profile by sliding the profile up the spring rail and letting it go. It
should return due to the force from the springs.
and the flywheel before screwing the return system 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 profile and the flywheel are correctly aligned, you will hear the motor coast back
down from full speed. If the profile and the flywheel are not correctly aligned, the motor it 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 return system.
small amount on the thread of the two screws (aa) and remount the two screws using the key
and tighten securely.
FIG. 19
FIG. 20
aa
* and apply a
®