Dewalt DCN21PLM1 Instruction Manual - Page 17

Replacing the Profile Fig. V

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English Fig. R Fig. S 9. Once the return system is correctly seated, open the provided sachet of Loctite®*** and apply a small amount on the thread of the two screws 17 and 19 19 remount the two screws using the hex wrench and tighten securely. 21 Fig. U 20 22 21 17 23 5. Mount the new return spring and washer on to the spring rail 20 . While compressing the spring with the washer near the opposite end of the rail, twist on the new spring bumper until it is past the groove for the spring rail clip. 6. Mount the new spring rail clip securely and position the bumper against the clip. 7. Repeat steps 3-6 to replace the second spring.. 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. 8. Slide the return system 18 back into the unit. Tighten the two screws 17 on either side of the unit. Check proper installation 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 may not start up or may slow down much faster than normal along with a loud grinding noise from the unit. If this happens remove battery, then remove and reseat the return system. Fig. T WARNING: Always test the unit by firing short nails in to soft wood, to ensure that the tool is working properly. If tool does not operate properly, contact a recognized DeWALT service center immediately. WARNING: LOCTITE® SACHET CONTENTS MAY IRRITATE EYES, SKIN, AND RESPIRATORY SYSTEM. USE ENTIRE CONTENTS ON OPENING. Do not breath fumes. Do not get in eyes or on skin or clothing. Use only in a well ventilated area. Keep out of reach of children. FIRST AID TREATMENT: Contains polyglycol dimethacrylate, polyglycol oleate, propylene glycol, titanium dioxide, and cumene hydroperoxide. If swallowed, call a Poison Control Center or doctor immediately. Do not induce vomitting. If breathed in move person to fresh air. If in eyes, rinse with water for 15 minutes. Obtain medical attention. If on skin, rinse well with water. If on clothes, remove clothes. ***Loctite® is a registered trademark of Henkel Corp. Replacing the Profile (Fig. V) To Change a Broken or Worn Profile 1. Refer to DCN6901 Return Spring Replacement Kit Steps 1-4 to remove the return system from the unit and to remove the springs. 2. Take note of the orientation of the profile 24 . Slide the profile off the rails 20 Fig. V 20 24 18 15

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ENGLISH
15
Fig. R
19
20
21
Fig. S
19
21
22
23
5. Mount the new return spring and washer on to the
spring rail 
 20 
. While compressing the spring with the
washer near the opposite end of the rail, twist on the
new spring bumper until it is past the groove for the
spring rail clip.
6. Mount the new spring rail clip securely and position the
bumper against the clip.
7. Repeat steps 3–6 to replace the second spring..
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.
8. Slide the return system 
 18 
back into the unit. Tighten
the two screws 
17
on either side of the unit. Check
proper installation 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 may not start up or may
slow down much faster than normal along with a loud
grinding noise from the unit. If this happens remove
battery, then remove and reseat the return system.
Fig. T
18
9. Once the return system is correctly seated, open the
provided sachet of Loctite®*** and apply a small
amount on the thread of the two screws 
 17 
and
remount the two screws using the hex wrench and
tighten securely.
Fig. U
17
±
WARNING:
Always test the unit by firing short nails
in to soft wood, to ensure that the tool is working
properly. If tool does not operate properly, contact a
recognized
D
E
WALT
service center immediately.
±
WARNING:
LOCTITE® SACHET CONTENTS MAY
IRRITATE EYES, SKIN, AND RESPIRATORY SYSTEM. USE
ENTIRE CONTENTS ON OPENING. Do not breath fumes.
Do not get in eyes or on skin or clothing. Use only in a
well ventilated area. Keep out of reach of children.
FIRST AID TREATMENT:
Contains polyglycol
dimethacrylate, polyglycol oleate, propylene glycol,
titanium dioxide, and cumene hydroperoxide. If
swallowed, call a Poison Control Center or doctor
immediately. Do not induce vomitting. If breathed in
move person to fresh air. If in eyes, rinse with water for
15 minutes. Obtain medical attention. If on skin, rinse
well with water. If on clothes, remove clothes.
***Loctite® is a registered trademark of Henkel Corp.
Replacing the Profile (Fig. V)
To Change a Broken or Worn Profile
1. Refer to
DCN6901 Return Spring Replacement Kit
Steps 1–4 to remove the return system from the unit
and to remove the springs.
2. Take note of the orientation of the profile
24
. Slide the
profile off the rails
20
Fig. V
24
20