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5
Functional Description
1. Trigger
2. Control
switch
3. LED
4. Hex drive chuck
5. Tool
holder
6. 3/8” Square drive shank
7. 1/2” Square drive shank
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2
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5
3
ASSEMBLY
Fig. 1
Attaching and Removing Accessories
Square drive shank
These impact wrenchs are intended only for use
with sockets designed for impact wrenches that
have a 3/8” (Cat. No. 2651-20) or 1/2” (Cat. No.
2652-20) square drive. Other sockets could shatter
or break, causing injury.
1. To attach a socket or other accessory, align the
accessory with the drive shank and push it fi rmly
over the retaining ring.
2. To remove the accessory, pull the accessory off
the drive shank.
Hex drive chuck
This impact driver is intended for use with drill and
driver bits.
1. To attach an accessory, pull the ring out and
insert the accessory shank. Release the ring. It
may be necessary to pull the bit out slightly to
engage the holding mechanism.
2. To remove the accessory, pull out the ring and
remove the accessory. Release the ring.
Inserting/Removing Battery Pack
Insert
the battery pack from the front by sliding
battery pack into the body of the tool. Insert the
battery pack until the battery latches lock.
To
remove
the battery pack, press in both battery
latches and slide the battery pack off of the tool.
WARNING
Recharge only with the
charger specifi ed for the battery. For specifi c
charging instructions, read the operator’s
manual supplied with your charger and
battery. This tool is not compatible with V™-
technology or NiCd systems.
WARNING
Always remove battery
pack before changing or removing acces-
sories. Only use accessories specifically
recommended for this tool. Others may be
hazardous.
WARNING
Use only sockets and other
accessories specifi cally designed for use on
impact wrenches and drivers. Other sockets
and accessories might shatter or break caus-
ing injury.
OPERATION
Using Control Switch
The control switch may be set to three positions:
forward, reverse and lock. Due to a lockout mecha-
nism, the control switch can only be adjusted when
the ON/OFF switch is not pressed. Always allow
the motor to come to a complete stop before using
the control switch.
1. For
forward
(clockwise) rotation, push the
control switch in the direction shown. Check the
direction of rotation before use.
2. For
reverse
(counterclockwise) rotation, push
the control switch in the direction shown. Check
the direction of rotation before use.
3. To
lock
the trigger, push the control switch to the
center position. The trigger will not work when
the control switch is in the locked position.
Always remove the battery pack before perform-
ing maintenance, changing accessories, storing
the tool and any time the tool is not in use.
Push for
Forward
Push for
Reverse
PUSH TO CENTER TO LOCK
WARNING
To reduce the risk of injury,
wear safety goggles or glasses with side
shields.
WARNING
Always remove battery
pack before changing or removing acces-
sories. Only use accessories specifically
recommended for this tool. Others may be
hazardous.
Fig. 2
Starting, Stopping and Controlling Speed
These tools may be operated at any speed from
0 to full speed.
1. To
start
the tool, pull the trigger.
NOTE: An LED is turned on when the trigger is
pulled.
2. To
vary
the driving speed, simply increase or
decrease pressure on the trigger. The further
the trigger is pulled, the greater the speed.
3. To
stop
the tool, release the trigger and the
electric brake stops the tool instantly.
Impacting Techniques
The longer a bolt, screw, or nut is impacted, the
tighter it will become. To help prevent damaging the
fasteners or workpieces, avoid excessive impact-
ing. Be particularly careful when impacting smaller
fasteners because they require less impacting to
reach optimum torque.
Practice with various fasteners, noting the length
of time required to reach the desired torque. Check
the tightness with a hand-torque wrench. If the
fasteners are too tight, reduce the impacting time.
If they are not tight enough, increase the impact-
ing time.
Oil, dirt, rust or other matter on the threads or
under the head of the fastener affects the degree
of tightness.
The torque required to loosen a fastener averages
75% to 80% of the tightening torque, depending on
the condition of the contacting surfaces.
On light gasket jobs, run each fastener down to a
relatively light torque and use a hand torque wrench
for fi nal tightening.
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