Maintenance - Craftsman CMCF920 Instruction Manual

Speed Selector (Fig. A)
CMCF920
Low Mode Normal Impacting
High Mode High Speed Impacting
Usage (Fig. A)

WARNING: Use only impact accessories. Non-impact
accessories may break and cause a hazardous
condition. Inspect accessory prior to use to ensure that
it con tains no cracks.

CAUTION: Ensure fastener and/or system will
withstand the level of torque generated by the tool.
Excessive torque may cause breakage and possible
personal injury.
1. Place the accessory on the fastener head. Keep the tool
pointed straight at the fastener.
2. Press variable speed trigger switch
Release variable speed trigger switch to stop operation.
Always check torque with a torque wrench, as the
fastening torque is affected by many factors including
the following:
- Voltage: Low voltage, due to a nearly discharged
battery, will reduce fastening torque.
- Accessory size: Failure to use the correct accessory
size will cause a reduction in fastening torque.
Bolt size: Larger bolt diameters generally require
-
higher fastening torque. Fastening torque
will also vary according to length, grade, and
torque coefficient.
- Bolt: Ensure that all threads are free of rust and
other debris to allow proper fastening torque.
- Material: The type of material and surface finish of
the material will affect fastening torque.
Fastening time: Longer fasten ing time results in
-
increased fastening torque. Using a longer fastening
time than recommended could cause the fasteners
to be overstressed, stripped or damaged.

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.
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 procedure.

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.
Accessories

RPM 0–900
RPM 0–1900
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 CRAFTSMAN call 1-888-331-4569 .
Impact Accessories

3 to start operation.
Versatrack™ (Fig. E)






iMPORTAnT: When attaching the Versatrack™ hang
hook, use only the screw that is provided. Be sure to
securely tighten the screw. Versatrack™ accessories
mount compatible tools securely to the Versatrack™
Trackwall system.
1. Turn the tool off, remove the battery pack

2. Attach the hang hook
WARNING: Since accessories, other than those
offered by CRAFTSMAN, have not been tested with
this product, use of such accessories with this tool
could be hazardous. To reduce the risk of injury, only
CRAFTSMAN recommended accessories should be
used with this product.
WARNING: Use only impact accessories. Non-impact
accessories may break and cause a hazardous
condition. Inspect accessories prior to use to ensure
that they contain no cracks.
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.
WARNING: To reduce the risk of serious personal
injury, do not use a damaged Versatrack™ hang hook
or Versatrack™ Trackwall. A damaged Versatrack™
hang hook or Versatrack™ Trackwall will not support
the weight of the tool.
WARNING: To reduce the risk of serious personal
injury, ensure the screw holding the Versatrack™ hang
hook is securely tightened.
WARNING: To reduce the risk of serious personal
injury, DO NOT suspend tool overhead or suspend
objects from the hang hook. ONLY suspend tool on the
Versatrack™ Trackwall using the hang hook.
WARNING: Ensure that the tool weight does not
exceed the maximum rated weight of 20 lb (9 kg) for
the selected Versatrack™ hook.
WARNING: When hanging objects on a Versatrack™
Trackwall rail, adequately space the tools in order to
not exceed 75 lb (35 kg) per linear foot.
and accessories.
CAUTION: Any product with exposed cutting teeth
must have them covered securely if it is to be on
the Versatrack™ Trackwall.
11 on the tool.
a. Place the Versatrack™ hang hook onto the mounting
location at the base of the tool.
English
9