English
8
Proper Hand Position (Fig. E)
WARNING:
To reduce the risk of serious personal injury,
ALWAYS
use proper hand position as shown.
WARNING:
To reduce the risk of serious personal injury,
ALWAYS
hold securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the main
handle
13
.
FIG. E
13
Speed Selector (Fig. F)
Your tool is equipped with a speed selector
8
which allows
you to select one of three speeds. Select the speed based on
the application and control the speed of the tool using the
variable speed trigger switch
1
.
Speed 1 0-900 rpm
Speed 2 0-1950 rpm
Speed 3 0-2800 rpm
FIG. F
nOTE:
Output torque is dependent on the speed selected,
with the highest provided in Speed 3
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 more
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.
Forward/Reverse Control Button (Fig. A)
A forward/reverse control button
2
determines the
direction of the tool and also serves as a lock-off button.
To select forward rotation, release the trigger switch and
depress the forward/reverse control button on the right side
of the tool.
To select reverse, release the trigger switch and depress the
forward/reverse control button on the left side of the tool.
The center position of the control button locks the tool in
the off position. When changing the position of the control
button, be sure the trigger is released.
nOTE
: The first time the tool is run after changing the
direction of rotation, you may hear a click on start up. This is
normal and does not indicate a problem.
Worklights (Fig. A)
CAUTION: Do not stare into worklight.
Serious eye
injury could result.
There are three worklights
7
located around the anvil
3
.
The worklights are activated when the trigger switch is
depressed. When the trigger is released, the worklight will
stay illuminated for up to 20 seconds. If the trigger switch
remains depressed, the worklights will remain on.
nOTE
: The worklights are for lighting the immediate work
surface and are not intended to be used as a flashlight.
Anvil with Hog Ring (Fig. A)
To install an accessory on the hog ring anvil, firmly push
accessory onto the anvil
3
The hog ring
4
compresses to
allow the accessory to slide on. After accessory is installed,
the hog ring applies pressure to help provide accessory
retention.
To remove an accessory, grasp the accessory and firmly pull
it off.
Usage
Your impact tool can generate the following maximum
torque:
Cat #
Ft.-Lbs.
In.-Lbs.
Nm
MCF891
275
3300
375
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 switch to start operation. Release 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.
