Stanley SCH121, Manual

Page: 9 / 48

9
(
Original Instructions)
ENGLISH
Selecting the direction of rotation (Fig D)
For tightening, use forward (clockwise) rotation. For
loosening, use reverse (counterclockwise) rotation.
• To select forward rotation, push the forward/reverse
slider (2) to the left.
• To select reverse rotation, push the forward/reverse
slider to the right.
• To lock the tool, set the forward/reverse slider into the
centre position.
• When changing the position of the control button, be
sure the trigger is released.
Variable speed trigger switch (Fig A)
To turn the tool on, squeeze the trigger switch (1). To turn
the tool off, release the trigger switch. Your tool is equipped
with a brake. The chuck will stop when the trigger switch is
fully released.
The variable speed switch enables you to select the best
speed for a particular application. The further you squeeze
the trigger, the faster the tool will operate. For maximum tool
life, use variable speed only for starting holes or fasteners
NOTE : Continuous use in variable speed range is not
recommended. It may damage the switch and should be
avoided.
Torque adjustment collar (Fig. A,D)
The torque adjustment collar (3) is clearly marked with
numbers and a drill bit symbol.The collar should be rotated
until the desired setting is located at the top of the tool.
Locators are provided in the collar to eliminate the guess
work when selecting fastening torque.
The higher the number on the collar, the higher the torque
and the larger the fastener which can be driven. To lock the
clutch for drilling operations, move to the drill bit position.
NOTE : When using the drill/driver for drilling holes, be sure
that the torque adjusting collar is set so the figure of the drill
is aligned with the center line on the top ofthe tool. Failure
to do this will allow the clutch to slip while attempting to drill.
Gear shifter (Fig A, D)
The dual range feature of your driver/drill allows you to shift
gears for greater versatility.
To select the low speed, high torque setting, turn the tool
off and permit to stop. Slide the gear shifter (4) forward
(towards the chuck). To select the high speed, low torque
setting, turn the tool off and permit to stop. Slide the gear
shifter back (away from chuck).
NOTE : Do not change gears when the tool is running. If you
are having trouble changing gears, make sure that the dual
range gear shifter is either completely pushed forward or
completely pushed back.
LED work light
The LED work light (8) is located under the the torque
adjustment collar (3) and is activated automatically when
the trigger is depressed. The LED work light will illuminate
when the trigger is partially depressed, before the unit
begins running.
NOTE: The LED worklight is for lighting the immediate work
surface and is not intended to be used as a flashlight.
Keyless chuck (Fig E)
Your tool features a keyless chuck with one rotating sleeve
for one-handed operation of the chuck. To insert a drill bit or
other accessory, follow these steps.
1. Lock the trigger in the OFF position as previously
described.
2. Grasp the black sleeve of the chuck with one hand and
use the other hand to secure the tool. Rotate the sleeve
counterclockwise far enough to accept the desired
accessory.
3. Insert the accessory about 19 mm (3/4”) into the chuck
and tighten securely by rotating the chuck sleeve
clockwise with one hand while holding the tool with the
other. Your tool is equipped with an automatic spindle
lock mechanism. This allows you to open and close the
chuck with one hand.
4. To release the accessory, repeat step 2 above.
WARNING : Do not attempt to tighten drill bits (or
any other accessory) by gripping the front part of
the chuck and turning the tool on. Damage to the
chuck and personal injury may result. Always lock
off trigger switch when changing acces sories.
Be sure to tighten chuck with one hand on the chuck sleeve
and one hand holding the tool for maximum tightness.
Chuck removal (Fig F)
Turn the adjustment collar to the “drill” position and gear
shifter to position 1 (low speed). Tighten the chuck around
the shorter end of a hex key (not supplied) of 6.35 mm (1/4”)
or greater size. Using a wooden mallet or similar object,
strike the longer end in the clockwise direction, as shown.
This will loosen the screw inside the chuck.
Open chuck jaws fully, insert screwdriver (or Torx tool if
required) into front of chuck between jaws to engage screw
head. Remove screw by turning clockwise (left-hand-
thread). Place hex key in chuck and tighten, as shown in
Figure F. Using a wooden mallet or similar object, strike key
sharply in the counterclockwise direction. This will loosen
the chuck so that it can be unscrewed by hand.
Chuck installation (Fig G)
Screw the chuck on by hand as far as it will go and insert
screw (left-hand thread). Tighten screw securely. Tighten the
chuck around the shorter end of a 6.35 mm (1/4”) or larger
hex key (not supplied) strike the longer end in the clockwise
direction with a wooden mallet, as shown. Tighten the screw
once again by turning in a counterclockwise direction.
Drill operation
WARNING : To reduce the risk of serious personal
injury, turn tool off and disconnect tool from
power source before making any adjustments or
removing/installing attachments or accessories.
WARNING: To reduce the risk of personal
injury, ALWAYS ensure workpiece is anchored
or clamped firmly. If drilling thin material, use a
wood “back-up” block to prevent damage to the
material.
Turn the collar to the drill bit symbol for drilling. Select the
desired speed/torque range using the gear shifter to match
the speed and torque to the planned operation.
1 Use sharp drill bits only. For WOOD, use twist drill bits,
spade bits, or hole saws. For METAL, use high-speed
steel (HHS) twist drill bits or hole saws.