REMS Picus S1 Instructions D'emploi page 15

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The electronic speed regulation keeps the selected speed largely constant also
under load.
Important: Wait for the machine to come to a halt before engaging the trans-
mission. Never try to do this during operation or outflow. If you cannot engage
a particular speed, turn the handle grip (39) and rotate the drive spindle/diamond
core drilling crown by hand at the same time. Pull out the mains plug first!
2.3. Universal diamond core drilling crowns REMS UDKB
The cutting characteristics of the diamond core drilling crown are determined
by the quality of the diamonds, the particle-size and shape of the diamonds,
and also by the bonding agent – the metal powder in which the diamond parti-
cles are set. Users who need to carry out a variety of core-drilling operations
should keep a range of diamond core drilling crowns of different sizes to hand
in order to optimise the cutting process. It is often only possible to ascertain
onsite which diamond core drilling crown is ideal, in terms of cutting perform-
ance (operating speed) and service life, for a particular drilling task. You may
even have to contact the manufacturer of the diamond core drilling crown on
various occa sions in order to find out which bit should be used.
REMS has developed the Universal diamond core drilling crown for use in
common drilling operations. These bits are universally applicable for both dry
and wet drilling, either manually-controlled or with drill upright. The connection
thread of the REMS Universal diamond core drilling crown UNC 1¼ is compat-
ible with the REMS Picus S1, REMS Picus S2/3,5, REMS Picus S3 and REMS
Picus SR and with suitable drive units from other suppliers. If the connection
thread proves to be incompatible with the drive unit, special adapters are avail-
able as accessories (22).
2.3.1. Fitting the diamond core drilling crown
Unplug from the mains power supply. Screw the selected diamond core drilling
crown onto the drive spindle (11) of the drive unit, and lightly hand-tighten. It
is an advantage to insert the quick-release ring (art. no. 180015) between the
diamond core drill crown and the drive spindle. There is no need to tighten it
with a wrench. Note that the threads on the drive spindle and diamond core
drilling crown must be clean.
2.3.2. Removing the diamond core drilling crown
Unplug from the mains power supply. Use an SW 32 wrench to hold the drive
spindle (11) and an SW 41 wrench to loosen the diamond core drilling crown
(48).
Always unscrew the diamond core drilling crown from the drive unit when the
drilling task is finished. With wet-drilling operations in particular, there is also
a danger of the diamond core drilling crown becoming corroded, making it
difficult to remove.
Important: The casing pipes of the diamond core drilling crown are not hard-
ened. Hitting (with tools) and impact (during transport) on the casing pipe will
lead to damage that is likely cause the diamond core drilling crown and/or
drilling core to become seized. The diamond core drilling crown may then be
rendered unusable.
2.3.3. Sharpening the diamond core drilling crown
REMS diamond core drilling crowns are supplied ready-sharpened. If feed
pressure is kept at the correct level, the diamond-tipped segments will sharpen
themselves. Incorrect feed pressure can lead to the diamond-tipped segments
becoming „polished", which causes their cutting performance to diminish. If this
occurs, use the diamond core drilling crown to drill 10 mm to 15 mm into sand-
stone, asphalt or a sharpening stone (available as an accessory) in order to
sharpen the diamond-tipped segments once more.
2.4. Manually-controlled dry boring REMS Picus S1 and REMS Picus S3
Secure the holder-up (12) to the drill collar (13) of the drive unit.
Important: Never carry out manually-controlled drilling without first fitting the
holder-up. DANGER OF ACCIDENTS!
The water supply system (15) gets in the way of manually-controlled dry boring,
and it should therefore be disconnected. Remember to shut off the water inlet
with its sealing cap (14) to prevent dust from getting into the machine.
Important: Always wet drilling for steel-reinforced concrete!
2.4.1. Tapping tool
Manually-controlled tapping is made considerably easier, thanks to the REMS
tapping tool (49). This is fitted with a conventional hardened- metal Ø 8 mm
masonry bit, which is secured in place with an SW 3 hexa gon socket head
wrench. The G ½ thread is used to screw the tapping tool into the spindle of
the drive unit, where it is gently tightened with an SW 19 wrench.
2.4.2. Dust extraction REMS Picus S1, REMS Picus S3 and REMS Picus SR
We recommend the use of a dust extraction system to remove drilling dust from
the machine during core-drilling operations. This consists of the REMS suction
rotor for dust extraction (available as an accessory) and a fine-dust suction
extractor designed for industrial use. The suction rotor (46) is screwed to the
drive spindle (11) of the drive unit using the G ½ connector. The combined
annular core bit connector (47) on the opposite side permits the fitting of diamond
core drilling crowns with female thread UNC 1¼ and the attachment of the
tapping tool (49).
Important: Always wet drilling for steel-reinforced concrete!
If the dust produced by dry boring is not removed, the diamond core drilling
crown may overheat and suffer damage. There is also a danger of the compressed
drilling dust in the gap causing the diamond core drilling crown to become
blocked.
2.5. Wet boring
Optimum drilling performance will only be achieved if the diamond core drilling
crown is provided with a constant supply of water. This keeps the diamond core
drilling crown cool and allows drilled-out material to be swilled from the bore
hole. To connect the water supply system (15), remove the cover (14) and
attach the water supply system with the fillister head screw supplied. The
quick-action coupling with water shutoff device should be fitted with a ½" water
hose. Water pressure should not exceed 4 bar.
If there is no direct water connection available, water throughflow can be
achieved using the water pressure tank (51) (accessory). Be aware that there
is sufficient water flow.
A water extractor unit (44) (accessory) should be used if required. This consists
of a water-collection ring and a pressure ring which is secured to the foot of
the boring trestle (1). The water-collection ring is to be connected to a wet-
suction extractor designed for industrial use. The size and shape of the rubber
gasket (45) in the water-collection ring must exactly match the diameter of the
annular bit.
2.6. Boring with a drill upright
Good results can be obtained by operating with a drill upright. The purpose of
the drill upright is to guide the drive unit. Its power transfer rack-and-pinion
drive system ensures both hole-tapping with „feel" and powerful infeed of the
diamond core drilling crown. REMS Picus S1, REMS Picus S3 and REMS Picus
SR can be mounted optionally on the REMS Simplex or REMS Duplex drill
stands. REMS Picus S2/3,5 must be mounted on REMS Duplex 300.
In the case of the REMS Simplex, the feed slider (2) supplied with the unit must
be inserted into the boring trestle (1), along with the feed lever and clamping
angle, and advanced by turning the feed lever (4). The two reverse adjustment
screws (5) should also be screwed in.
With the REMS Duplex, the clamping angle (10) and short fillister head screws
(supplied with the unit) should be screwed to the feed slider (2). In this
configuration, the REMS Duplex can be used to drill at up to Ø 132 mm. For
larger core-drilling operations, the spacer (38, supplied with unit) must be
inserted between the feed slider (2) and clamping angle (10), and secured with
the long fillister head screws. The spacer should however only be fitted if you
actually intend to drill at > Ø 132 mm, as the drive unit runs in a more stable
way without the spacer.
REMS Duplex 300 is immediately ready for operation upon delivery.
The boring trestle (1) of REMS Duplex and REMS Duplex 300 is infinitely
adjustable up to an angle of 45°. This allows angled core-drilling operations to
be carried out within this range. To adjust the angle, use a wrench to loosen
the screws (37) at the foot of the boring trestle (1), along with all the screws on
the two struts (40). The boring trestle can now be swivelled to the desired
position. Retighten all screws before proceeding. The swivel adjustment of the
boring trestle causes the useful stroke range of the feed device of the REMS
Duplex to increase or decrease accordingly. This means that you may have to
use corresponding annular-bit extensions (see 3.7.).
The feed slide (2) can be locked in certain positions on the drill stands. In the
case of the REMS Simplex, this is done by moving the slotted sleeve (3) on
the feed shaft, while at the same time turning the feed lever axially in relation
to the feed-mechanism housing until it engages. On REMS Duplex and REMS
Duplex 300, push the sliding bolt (36) in the direction of the struts and turn the
feed lever (4) at the same time until the sliding bolt snaps into place.Locking
prevents such undesired movements as the acci dental lowering of the drive
unit while the diamond core drilling crown is being replaced.
On the REMS Simplex, REMS Duplex and REMS Duplex 300, the feed lever
(4) can be secured, in accordance with operating conditions, on either the
right- or left-hand side of the feed slider (2). The feed slider should be locked,
as described above, when doing so. In the case of the REMS Simplex, the
turning handle (9) and two washers on the opposite side of the feed lever are
removed; then the feed shaft is pulled out of the feed-mechanism housing,
along with the feed handle, and pushed in again from the other side. Refit the
washers and turning handle. On the REMS Duplex and REMS Duplex 300,
only the feed lever (4) is pulled off the feed shaft. It is then pushed onto the
shaft butt end on the opposite side.
3. Operation
Connect by plugging into the mains supply. Always check the PRCD fault-current
safety switch (19) for correct functioning before starting a drilling operation. To
do so, press the RESET button (17) and watch for the red indicator light (16,
operating status). The indicator light should go off when the mains plug is pulled
out. Push the mains plug back into its socket and press the RESET button. The
indicator light should be red (operating status). Press the TEST button (18),
and the indicator light should go out. Press the RESET button (17) again, and
the drive unit is ready for operation.
Important: DO NOT start drilling operations if any of the above PRCD functions
are defective! DANGER OF FATAL ACCIDENT!
Different material characteristics (concrete, steel-reinforced concrete, porous
or solid masonry) require different and varying feed pressures on the diamond
core drilling crown. Further influence is brought to bear by the varying periph-
eral speed and size of the bit. It is inevitable, espe cially during manually controlled
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