REMS Krokodil 125 Notice D'utilisation page 10

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screw axle. Press the drive shaft lock (18) and remove the hexagon head bolt
(10) with a size 13 spanner. Pull the clamping flange (11) and spacer discs (12)
of the drive shaft (13). Clean the drive shaft and all parts to be mounted. The
groove width is set with the spacer discs. Arrange the spacer discs and diamond
cutting discs according to the slitting width. The direction arrow of the diamond
cutting disc must match the direction arrow (14) on the protective cover. At least
one spacer disc must be mounted between the diamond cutting discs. All the
spacer discs must be pushed onto the drive shaft. Insert the clamping flange
with the collar into the drive shaft and make sure that the lug of the drive shaft
engages into the groove of the clamping flange. Press the drive shaft lock (18)
and tighten the hexagon head bolt (10). Check the diamond cutting discs for
secure fit. Swing in the protective cover and fasten with the screw (17). Trial
run the power tool with the newly fitted diamond cutting discs for at least one
minute without load before starting work. The position of the diamond cutting
discs can be marked on the cutting surface (9) for accurate positioning of the
slits.
CAUTION
Diamond cutting discs get very hot during work. Let them cool down before
touching or removing.
2.4. Setting the switch handle and holding handle
Pull out the mains plug. The switch handle (1) can be mounted parallel to the
machine axle and swivelled 90°. To do this, loosen the clamping screw of the
switch handle (2) and set the switch handle to the desired position, tighten the
switch handle clamping screw. The holding handle (3) can be mounted swivelled
in several detent positions. To do this, open the clamping screw of the holding
handle (4) until the teeth no longer engage. Move the holding handle into the
desired position (pay attention to positive lock of the teeth) and tighten with the
holding handle's clamping screw.
2.5. Setting the depth stop
Pull out the mains plug. Open the holding handle clamping screw (4) about 1
turn. To set the slitting depth, move the depth stop (5) to the desired position,
tighten with the holding handle's clamping screw (4).
2.6. Dust extraction
WARNING
Inhalation of the dusts produced when slitting and cutting is harmful to the
health. Observe the national regulations. It is recommended to use a safety
vacuum cleaner/dust extractor of dust class M. Observe the operating instruc-
tions of the safety vacuum cleaner/dust extractor.
Push the suction nozzle adapter (16) onto the suction nozzle (15) so that the
greatest possible distance of the pushed on suction hose from the surface is
achieved (Fig. 1).
2.7. Fixing the workpiece
Workpieces which are slit or cut loosely must be rigidly fixed and secured
against being flung away.
2.8. Note on static
Before beginning work, make sure that the building static is not negatively
affected by the slitting or cutting work; consult the building management or a
static engineer if necessary. Slitting work in supporting walls may be subject
to national regulations. These regulations must be observed.
3. Operation
Use eye protection
Use ear protection
REMS Krokodil 125 is equipped with a safety switch (8). This enables the drive
unit to be shut down at any time and prevents unintentional staring of the drive
unit. The safety switch must first be pushed in the direction of the mains lead
and then pressed.
To facilitate handling and to avoid damage the REMS Krokodil 125 is equipped
with multifunctional electronics with an electronic slipping clutch. The multi-
function electronics perform the following functions:
● Electronic start-up current limiting reduces the inrush current and therefore
allows operation on a 16 A fuse.
● Soft start for protecting the drive unit and jolt-free starting after switching on.
● Limiting of the idle speed to reduce noise and preserve the motor and gear.
● Overload protection of the motor depending on the thrust pressure. The
motor current and thus the speed of the drive machine is reduced to a
minimum before overloading of the drive unit due to too high a thrust pressure
on the diamond cutting discs or blocking. However, the drive unit does not
switch off. If the thrust pressure is reduced, the speed of the drive unit
increases again. This process does not damage the drive unit even if it is
repeated several times. If the motor remains at standstill despite reducing
the thrust pressure, however, the drive unit must be switched off and the
diamond cutting discs may have to be re-engaged.
3.1. Slitting
Use a suitable safety vacuum cleaner/dust extractor. Hold the REMS Krokodil
by the switch handle (1) and holding handle (3) and set the resting surface (9)
against the surface to be cut. Make sure you have a safe footing and enough
3.2. Cutting
4. Service
4.1. Maintenance
Use a respirator
Use hand protection
4.2. Inspection/repair
5. Troubles
5.1. Trouble: Drive unit does not start.
room for the drive unit, safety vacuum cleaner/dust extractor, suction hose and
operator. Switch on the REMS Krokodil 125 at the switch handle. To do this,
first push the safety switch in the direction of the mains lead and then press it.
When the power tool has reached full speed, press the REMS Krokodil 125
onto the surface with even thrust pressure. The diamond cutting discs penetrate
the surface. On reaching the slitting depth, push the REMS Krokodil 125 forward
against the direction of the arrow (14) because otherwise the cutting disc could
lift uncontrolled out of the slit. Make sure that the diamond cutting discs do not
twist/jam. After finishing the slit, switch off the REMS Krokodil 125 and wait
until the diamond cutting discs have come to a complete standstill. Do not lift
off the surface until the drive unit is at a standstill.
CAUTION
Diamond cutting discs get very hot during work. Let them cool down before
touching or removing.
Make sure that the suction hose of the industrial vacuum cleaner does not kink
and impair the dust extraction. Also make sure that no fragments of stone or
other objects jam in the suction nozzle (15) and/or suction hose. Empty the
dust bag of the safety vacuum cleaner/dust extractor early and clean/renew
the filter regularly. Observe the operating instructions of the safety vacuum
cleaner/dust extractor.
After slitting, a ridge remains between the slits. This can be removed with a
slitting chisel (part no. 185024).
Use a suitable safety vacuum cleaner/dust extractor. Only insert one diamond
cutting disc in the machine. Secure/clamp the workpiece to be cut. Hold the
REMS Krokodil 125 by the switch handle (1) and holding handle (3) and set the
resting surface (9) against the workpiece to be cut. Make sure you have a safe
footing and enough room for the drive unit, safety vacuum cleaner/dust extractor,
suction hose and operator. Switch on the REMS Krokodil 125 at the switch handle.
To do this, first push the safety switch in the direction of the mains lead and then
press it. On reaching full speed, press the REMS Krokodil 125 against the work-
piece with even thrust pressure and on reaching the cutting depth, push it forward
against the direction of the arrow (14) because otherwise the cutting disc could
lift uncontrolled out of the cut. Make sure that the diamond cutting disc does not
twist/jam. After cutting the workpiece, switch off the REMS Krokodil and wait until
the diamond cutting disc has come to a complete standstill. Do not lift off the
workpiece until the drive unit is at a standstill.
CAUTION
Diamond cutting discs get very hot during work. Let them cool down before
touching or removing.
Make sure that the suction hose of the safety vacuum cleaner/dust extractor
does not kink and impair the dust extraction. Also make sure that no fragments
of stone or other objects jam in the suction nozzle (15) and/or suction hose.
Empty the dust bag of the safety vacuum cleaner/dust extractor early and clean/
renew the filter regularly. Observe the operating instructions of the safety vacuum
cleaner/dust extractor.
WARNING
Pull out the mains plug before maintenance work!
Keep the drive unit and the mount of the diamond cutting discs clean. Blow out
the air vents on the motor from time to time with the machine running.
Make sure that liquids never get inside the electric power tool. Never immerse
the power tool in liquid.
CAUTION
Check the diamond cutting discs regularly for cracks or damage. Cracked and/
or damaged diamond cutting discs may not be used.
WARNING
Pull out the mains plug before carrying out maintenance or repair work!
This work may only be performed by qualified personnel.
The REMS Krokodil 125 gear is maintenance-free. It runs in a life-long grease
filling and therefore needs no lubrication. The motor has carbon brushes. These
wear and must therefore be checked and renewed from time to time. Only use
original REMS carbon brushes. It is recommended to send in the power tool
to an authorised REMS customer service workshop for inspection/repair after
about 250 operating hours or at least once a year. Notwithstanding this, national
test intervals for mobile electrical equipment on building sites must be observed.
NOTICE
Damaged or worn diamond cutting discs cannot be repaired.
Cause:
● Worn carbon brushes.
● Mains lead defective.
● Diamond cutting disc has jammed.
● Defective drive unit.
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