-17-
cutting blade must point in the same direction as the
arrow on the cutting blade cover. Then put cutting
blade cover 19 on and tighten flat-head screws 45.
Make sure that all contact surfaces on the flanges
and blade are clean.
If the cutting blade and the guide rollers are not
properly aligned, the guide rollers should be adjusted.
5 Operation
5.1 Switching on and off
Do not switch on the machine if the
cutting blade is touching the floor
covering material.
Temporary operation
Switching on: Press switch 92/1.
Switching off: Release the switch.
Continuous operation
Switching on: Press switch 92/1 first and then press
locking button 92/2. The motor runs wiuthout keeping
the switch pressed.
Switching off: Press switch 92/1 until locking button
92/2 trips, then release the switch.
5.2 Adjusting cutting speed
This grooving machine has an electronic speed
control. The cutting speed can be adjusted
continuously between 8000 and 13000 rpm. Thus, the
cutting speed can be adapted to the material used.
The built-in electronics ensure a jerk-free acceleration
when switching on and control the speed according to
the value set.
The required speed can be set by means of the
setting wheel on the motor cover.
5.3 Cutting depth adjustment
The cutting depth is adjusted by turning knurledhead
screw
28.
Turning
clockwise
reduces,
counterclockwise increases the cutting depth. Turning
the knurled-head screw down completely reduces the
cutting depth to 0 mm. When cutting grooves, make
sure that the cutting blade will not cut into the
concrete or flooring plaster as this may damage the
carbide-tipped teeth.
When the cutting depth has been set, it is
recommended to cut a trial groove into a piece of
waste material.
5.4 Work instructions
Place the grooving machine down on the floor
covering in such a way that the two guide rollers are
placed on the slit of the joint between two sheets of
floor coverings. The front guide roller 31 in front of the
cutting blade has a thin knife-like profile to follow the
slit of the joint. Rear guide roller 32 has the same
profile as the teeth of the cutting blade so that it
completely fills the groove to be cut. Hold the
machine firmly, switch on, lower the machine into
working position by pressing it down smoothly and
start cutting. After a few cm / inches rear guide roller
32 will be fully inserted into the groove providing
reliable guidance in conjunction with the front guide
roller.
When cutting, make sure that the machine is
advanced evenly and firmly, to prevent that chips
are heated up, melted and glued together.
Beginning and end of the groove must be completed
with a hand grooving tool.
Attention: The thin profile of the front guide roller is
rather delicate and may be damaged when hitting
concrete or metal, which in turn may reduce its
guiding capacity.
6 Maintenance
Danger
Prior to doing any maintenance
work always pull out the mains
plug!
The grooving machine KFU 1000 E is designedwith a
low maintenace requirement. The ballbearing are
greased for life.
The machine must be regularly cleaned of dust, at the
same time blowing out of the motor ventilation
apertures.
After a prolonged period of operation, users are
recommended to have the machine checked by an
authorized MAFELL customer service shop.
