BM 1619929472 2/03 2/12/03 2:45 PM Page 7
Operating Instructions
TRIGGER "ON-OFF" SWITCHstresses that occur from a high torque start.
To turn the tool OON� squeeze the triggerThe system also helps to keep the pre-
switch. To turn the tool OOFF�, release theselected impact rate and rotating speed
trigger switch, which is spring loaded andvirtually constant between no-load and load
will return to the OOFF� positionconditions.
automatically.INSTALLING ACCESSORIES
To increase switch life, do not turn switch onClean the insert shank end of the accessory
and off while tool is under load.to remove any debris, then lightly grease
VARIABLE SPEED DIALwith a light oil or lubricant.
Your tool is equipped with a variable speedInsert accessory into the tool holder through
dial. The impact rate (BPM) and rotatingthe dust shield, while twisting and pushing
speed (RPM) can be varied according to theinward until it locks automatically into place.
type of work being performed by setting thePull outward on the accessory to be certain
variable speed dial to the selected setting.it is locked into the tool holder (fig. 2).
The chart below will help you to determineNOTE: The high efficiency available from the
which setting to use for your application.
rotary hammers can only be obtained if
However, a pre-test will determine the bestsharp and undamaged accessories are used.
speed setting, as the chart is intended only
The "cost" to maintain sharp and
as a guide. Once the proper setting is
determined the impact rate and rotatingundamaged accessories is more than offset
by the "time saved" in operating the tool
speed is kept constant by means of the
"Electronic Feedback Circuitry". The variablewith sharp accessories.
speed dial can be adjusted while the motorREMOVING ACCESSORIES
is running with the tool free from work,Accessories may be hot
!WARNING
allowing the operator to adjust the impactafter use. Avoid contact
rate and rotating speed according to thewith skin and use proper protective gloves or
actual application.cloth to remove.
To remove an accessory, pull and hold
locking sleeve backward and pull bitChipping (Demolition)
forward. All accessories should be wiped
Area of applicationControl settingclean after removing.
Plaster work1 - 2
Removing tiles3FIG. 2
Brick work4
Concrete5 - 6
Drilling Holes
Lower speedsHigher speeds
Accurate startsFaster penetration
Minimize breakouts
when the bit exits
the material.
ELECTRONIC FEEDBACK CIRCUITRYLOCKING SLEEVE
(EFC)
The internal electronic feedback system
provides a "soft start", which will reduce the
-7- |
ACEC
