1. Adjust the amount of torque by turning the torque
adjusting ring. The torque control prevents the heads
of smaller diameter screws from twisting off when
correctly set. Fastening torque is greater as the
numerals are larger.
2. To select any of the numbers, rotate torque adjusting
ring until desired number aligns with the arrow at the
top of the housing.
3. The drill has full torque when set in a drill position.
Overloading and stalling the drill while in the drill
position can cause motor burnout and can dramatically
reduce battery life.
Application (CDRS761)
Drilling in Metal
For metal drilling, use high speed steel twist drills or hole
saws rated for metal cutting. Lubricate drill bits with
cutting oil when drilling in iron or steel. Use a center
punch to locate and start the hole. Use slower speeds to
drill into nonferrous materials like aluminum, brass or
copper. Pull the bit our frequently to remove chips that
can cause binding.
Drilling in Plastic
For drilling plastics, use slower speeds to prevent
melting.
Drilling in Wood or Composites
For wood or composite drilling, use wood auger bits,
spade bits, or twist drill bits. Pull the bit our frequently to
remove chips that can cause binding.
Driving Fasteners
Test on a scrap piece to determine the proper setting that
allows the screw to be driven to the correct depth just
before slipping of the internal clutch.
Application (CTSS761)
The Cordless Screwdriver is ideal for a wide variety of
fastener turning jobs in both automotive and industrial
fields. The tool is limited to the use of 1/4" hex driver bits
which come in a wide range of fastener driving
configurations.
Overloading
If the tool is overloaded for any reason the internal
electronics will cause it to stop working. This safety
feature will prevent under voltage, over temperature, and
over current damage to the tool or battery. Release the
trigger to resume operation.
The following conditions may cause temporary shut-
down of the tool as a safety feature to the user, as well as
to prolong the life of the tool and battery.
— Battery under voltage protection - indicated by
both white LED lights flashing once on the tool,
ZCDRS761CE Rev. B
pausing and then repeating the single flash. This
means the voltage has reached the lowest limit
allowed by the battery manufacturer and the tool
will stop operation to prolong battery life. The
battery voltage may recover after a small rest
period to do more work but the battery will need
charging.
— Battery or tool over temperature - indicated by
both white LED lights flashing twice on the tool,
pausing and then repeating the double flash.
When the tool is used under heavy load
continuously,
temperature of the switch or battery may be
reached, and the tool will temporarily stop
working. A hot tool will cool in about 1 minute. A
hot battery may require over 15 minutes to cool.
When this condition occurs, usually the battery
will be very close to needing recharging. You may
want to use another battery to finish the job.
Note: The battery charger will show a flashing
yellow LED until the battery cools sufficiently to
begin charge. When the tool is cold (less than
4ºF/-20ºC) it may be necessary to run it a few
seconds, without load, to warm up the battery.
— Tool current limit exceeded - indicated by both
white LED lights flashing three times on the tool,
pausing and then repeating the triple flash. When
the tool is used in an extra-heavy duty application,
the current limit may be reached, causing shut-
down of the tool power. A current limit will occur
if the motor is stalled. Tool operation can be
resumed immediately after releasing the trigger.
Forward/Reverse Switch (CDRS761)
The forward/reverse switch determines the rotating
direction
of
the
counterclockwise.
A
B
Figure 3: Forward/Reverse Switch
A – Release switch for forward or
clockwise rotation.
B – Depress switch for reverse or
counterclockwise rotation..
To change the direction of chuck rotation:
1. Be sure the drill is stopped and not operating.
10
the
maximum
allowable
chuck,
either
clockwise
or
(04/19)