Kango 800S Manuel De L'utilisateur page 6

These hammers have an Electronic Feedback Control Circuit (EFCC)
which helps improve the operation and life of the tool.
Soft Start
The Soft-Start feature reduces the amount of torque reaction to the tool
and the user. This feature gradually increases the motor speed up from
zero to the speed set by the speed control dial.
Feedback Control
The electronic speed control system allows the tool to maintain constant
speed and torque between no-load and load conditions.
To reduce the risk of injury, wear safety goggles
or glasses with side shields.
Selecting Action (Fig. 5)
(Cat. No. 845S)
The stop rotation knob may be set for either "hammering-only" or
"hammering-with-rotation".
Fig. 5
1
2
1. Hammering only. For use with "hammering-only" accessories.
Use this setting (1) for chiseling or setting self-drilling anchors.
2. Hammering with rotation. Use this setting (2) for drilling holes
with drill bits.
NOTE: To engage the hammering mechanism, maintain pressure on the
bit. When the pressure on the bit is released, the hammering will stop.
page 6
WARNING!
OPERATION
Hammering Only
Spline Drive System (Cat. No. 845S)
When a chisel (or other "hammering-only" accessory) is mounted into
the 845S Rotary Hammer and the stop rotation knob is set for "hammer-
ing-with-rotation", the rotational drive mechanism does not engage with
the chisel, even though the rotational drive mechanism is running. The
845S can use chisels in the "hammering-with-rotation" setting or the
"hammering-only" setting.
Selecting Speed
These hammers have a speed control dial. For the 800S, the speed
control dial allows the user to adjust the impact rate (BPM) of the tool. For
the 845S, the speed control dial allows the user to adjust the rotating
speed (RPM) and the impact rate (BPM) of the tool.
To change the speed, set the speed control dial to the desired setting.
Lower speeds provide more control when starting holes and reduce
'spalling' on breakthrough. Spalling occurs when pieces of material chip
off around the drilled hole on breakthrough. When chiseling in soft or
brittle materials, use lower speeds to reduce damage to surrounding
areas of the material.
Higher speeds provide for faster penetration when drilling and chiseling
in demolition work.
Starting and Stopping the Tool
1. To start the tool, pull trigger.
2. To stop the tool, release trigger.
Cold Starting
If this tool is stored for a long period of time or at cold temperatures, it
may not hammer initially because the lubrication has become stiff.
To warm up the tool:
1. Insert and lock a bit or chisel into the tool.
2. Turn the tool on, applying force to the bit or chisel against a concrete
or wood surface.
3. Turn the tool on and off every few seconds. In a short time, the tool
will start hammering. The colder the tool is, the longer it will take to
warm it up.