Craftsman CMCN621PL Manual De Instrucciones página 15

Hot Weather Operation
Tool should operate normally. However, keep tool out of
direct sunlight as excessive heat can deteriorate bumpers
and other rubber parts resulting in increased maintenance.
Rotating Rafter Hook (Fig. K)

WARNING: Remove nails from magazine before
making any adjustments or servicing this tool. Failure
to do so may result in serious injury.

CAUTION: When not in use, place tool on its
side on a stable surface where it will not cause a
tripping or falling hazard.

CAUTION: Some tools with large battery packs
will stand upright on the battery pack but may be
easily knocked over.
The cordless nailer includes a rotating rafter hook
can be easily positioned to the left or right of the tool to
accommodate left- or right-handed users.
If use of the hook is not desired at all, it can be rotated to the
front or back of the handle base.
MAINTENANCE

WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start‑up can cause injury.
DAILY MAINTENANCE CHART
ACTION Clean magazine, pusher, and contact
trip mechanism.
WHY Permits smooth operation of magazine,
reduces wear, and prevents jams.
HOW
Blowing off the tool with compressed air is the
most effective way to clean the tool. The use
of oils, lubricants periodically or solvents is not
recommended as they tend to attract debris
and/or damage the plastic parts of the tool.
ACTION Before each use, check to ensure all screws
and fasteners are tight and undamaged.
WHY Prevents jams and premature failure of
tool parts.
HOW
Tighten loose screws using the appropriate
hex wrench or screwdriver.
Replacing the Return Springs and
Driver Blade

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.

CAUTION: If you don't feel comfortable servicing your
tool, take it to a authorized service center. The user
should only attempt to service the springs and driver
blade. All other service should be completed by an
authorized service center.

CAUTION: Do not lubricate any of the replacement
parts. Lubrication can damage the parts and seriously
affect the life and performance of the tool.
NOTICE: All the mechanical parts of the spring
replacement 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. P.
Return Spring Replacement Kit (Fig. L–P)
To Change Broken or Worn Return springs
nOTE: Springs should be replaced as a pair, using only the
correct accessory spring replacement kit.
1. Using the hex wrench
screws 16
and
9
2. Remove the return system
Figure M.
3. Slide the spring rail clip
Refer to Figure N.
4. Twist and remove the spring bumper
the washer
5. Mount the new return spring
the spring rail
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 driver blade by sliding the
driver blade up the spring rail and letting it go. It should
return due to the force from the springs.
8. Slide the return system
the two screws
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 driver blade and the flywheel are
correctly aligned, you will hear the motor coast back
down from full speed. If the driver blade 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.
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
two screws using the hex wrench and tighten securely.

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 authorized
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.
10 provided, loosen the two
on either side of the unit. Refer to Figure L.
17 from the unit. Refer to
18 off of the spring rail
20
21 and return spring 22 . Refer to Figure N.
22 and washer
19 . While compressing the spring with
17 back into the unit. Tighten
16 on either side of the unit. Check
16 and remount the
English
19 .
and remove
21 on to
13