REMS Picus S1 Instructions D'emploi page 16

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boring, that the machine will occasionally become slightly tilted as it operates.
These factors, which are merely examples of those that might arise, can lead
to overloading of the drive unit during drilling operations. You will normally hear
the turning speed of the motor drop, although the diamond core drilling crown
may become completely blocked. This can lead, especially during manually-
con trolled boring, to torque-related jarring – which will affect the operation.
Important: Note that the diamond core drilling crown can become blocked at
any time. During manually controlled core drilling, there is a danger of the drive
unit jumping out of your hands.
In order to simplify the handling of the machine, and to avoid damage, the
REMS Picus S1, REMS Picus S3, REMS Picus S2/3,5 and REMS Picus SR
are equipped with a multi-func tion electronic system, along with a mechanical
sliding clutch. The multi- function electronic system performs the following tasks:
● Initial-current limitation and jerk-free startup for smooth tapping.
● Limiting of idling speed in order to reduce noise and prevent wear to the motor
and transmission.
● Motor overload regulation relative to feed pressure. Before the drive unit can
be overloaded by excessive feed pressure on the diamond core drilling crown,
or as the result of a blockage, the motor supply current – and thus its turning
speed – is reduced to a minimum. The drive unit does not shut down however.
As the feed pressure is reduced, the turning speed of the drive unit is increased
once more. This procedure, even if it is repeated several times in succession,
prevents damage to the drive unit. If the motor remains stopped despite the
reduction in feed pres sure, the drive unit must be shut down and the diamond-
tipped annular bit freed manually (see 5.).
Important: DO NOT switch the drive unit on and off in an attempt to free a
blocked diamond core drilling crown.
3.1. Manually-controlled dry boring REMS Picus S1, REMS Picus S3 and REMS
Picus SR
Important: Never carry out manually-controlled drilling without first fitting the
holder-up. DANGER OF ACCIDENTS!
Screw the selected diamond core drilling crown onto the drive spindle (11) of
the drive unit, and lightly hand-tighten. There is no need to tighten it with a
wrench. Using the tapping tool (see 2.4.1.). Secure the drive unit to the motor
handle (20) and holder-up (12), and locate the tapping tool at the centre of the
desired core-drilling point. Activate the drive unit at the switch (21).
Important: Avoid accidents: NEVER block the drive unit switch during manu-
ally-controlled boring! If the drive unit is knocked out of your hands as a result
of a blocked diamond core drilling crown, a blocked switch can no longer be
released. The drive unit will then run out of control, and the unit must be shut
down by unplugging it from the mains supply.
To make a tapping hole, drill until the diamond core drilling crown has bored to
a depth of about 5 mm. Pull out the mains plug. Remove the tapping tool, using
a SW 19 wrench if required. Using the dust-extraction system (see 2.4.2.).
Continue boring until the core-drilling opera tion is complete. PREVENT ACCI-
DENTS: The drive unit should be held firmly throughout in order to prevent
torque-related jarring. Check to ensure correct stability. Carry out larger core-
drilling operations with the drill upright.
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 drilling gap causing the diamond core drilling crown to become
blocked. If you need to work without the dust-extraction system when handling
fine-pored materials, pull the diamond core drilling crown out at regular intervals
and push it back in with a slight turn, so that the drilling dust is expelled from
the drilling gap.
Important: Always wet drilling for steel-reinforced concrete!
3.2. Manually-controlled wet drilling REMS Picus S1, REMS Picus S3 and
REMS Picus SR
Important: Never carry out manually-controlled drilling without first fitting the
holder-up. DANGER OF ACCIDENTS!
Screw the selected diamond core drilling crown onto the drive spindle (11) of
the drive unit, and lightly hand-tighten. There is no need to tighten it with a
wrench. Connect the water supply (see 2.5.). Using the tapping tool (see 2.4.1.).
Secure the drive unit to the motor handle (20) and holder-up (12), and locate
the tapping tool at the centre of the desired core-drilling point. Activate the drive
unit at the switch (21).
Important: Avoid accidents: NEVER block the drive unit switch during manu-
ally-controlled boring! If the drive unit is knocked out of your hands as a result
of a blocked diamond core drilling crown, a blocked switch can no longer be
released. The drive unit will then run out of control, and the unit must be shut
down by unplugging it from the mains supply.
To make a tapping hole, drill until the diamond core drilling crown has bored to
a depth of about 5 mm. Remove the tapping tool, using a SW 19 wrench if
required. Adjust the pressure in the water supply system (15) to a point where
there is a moderate, but constant, flow for water from the bore hole. Insufficient
water pressure (where the waste material flows out of the bore hole as thick
sludge rather than liquid) is as bad for the working efficiency and service life
of the diamond core drilling crown as is excessive water pressure, which causes
completely clear water to flow out. Continue boring until the core-drilling
operation is complete. PREVENT ACCIDENTS: The drive unit should be held
firmly throughout in order to prevent torque-related jarring. Check to ensure
correct stability. Carry out larger core-drilling operations with the drill upright.
Ensure that no water is allowed to get into the drive unit motor during operation.
DANGER OF FATAL ACCIDENT!
3.3. Ways of securing the drill upright
You are recommended to secure the drill upright without the drive unit and
diamond core drilling crown. The drill upright becomes top- heavy when the
drive unit is attached. This makes the task of securing it more difficult.
3.3.1. Securing with plugs in concrete with knock-in anchor (Fig. 5)
For core-drilling operations in concrete, the drill upright should be secured with
a knock-in anchor (steel plug). Proceed as follows:
Mark plug hole at a distance of approx. 220 mm (Simplex and Duplex), approx.
290 mm (Duplex 300) from the centre of the core hole. Make the Ø 15 mm plug
hole, with a drilling depth of about 55 mm. Clean the bore hole, hit the knock-in
anchor (23) in with a hammer and spread with the flattener (24). Use only
knock-in anchors of approved type (art. no. 079005). Observe approval! Screw
the knurled threaded rod (25) into the knock-in anchor and tighten it by holding
a tool such as a screw driver in the transverse hole of the knurled threaded rod.
Turn the four adjustment screws (5) on the drill upright until they no longer
protrude from the sole plate. Position the drill upright with slot (7) on the knurled
threaded rod, while observing the desired position of the core-drilling operation.
Fit the washer (26) to the knurled threaded rod and use an SW 19 wrench to
secure the fast-tightening nut (27). Turn all four adjustment screws (5) with the
SW 19 wrench to compensate for irregularities in the ground surface. Take care
to ensure that the locknuts do not prevent movement of the adjustment screws.
Tighten the locknuts as required.
3.3.2. Securing with plugs in masonry, with expansion anchor
(anchor sleeve, fig. 6)
For core-drilling operations in masonry, the drill upright should be secured with
an expansion anchor (anchor sleeve). Proceed as follows:
Mark plug hole at a distance of approx. 220 mm (Simplex and Duplex), approx.
290 mm (Duplex 300) from the centre of the core hole. Make the Ø 20 mm plug
hole, with a drilling depth of about 85 mm. Clean the bore hole, and push the
expansion anchor (28) with knurled threaded rod (25) into the hole. Screw the
knurled threaded rod (25) fully home and tighten it by holding a tool such as a
screw driver in the transverse hole of the rod. Turn the four adjustment screws
(5) on the drill upright until they no longer protrude from the sole plate. Position
the drill upright with slot (7) on the knurled threaded rod, while observing the
desired position of the core-drilling operation. Fit the washer (26) to the knurled
threaded rod and use an SW 19 wrench to secure the fast-tightening nut (27).
Turn all four adjustment screws (5) with the SW 19 wrench to compensate for
irregularities in the ground surface. Take care to ensure that the locknuts do
not prevent movement of the adjustment screws. Tighten the locknuts as
required.
The expansion anchor can be removed after completion of the core-drilling
operation for reuse elsewhere. To do so, turn the knurled threaded rod back
by about 10 mm. A light tap on the knurled threaded rod will release the pin of
the expansion anchor, allowing it to be removed.
3.3.3. Securing to masonry with a threaded rod
When drilling in porous masonry, note that it is not sufficient to secure the drill
upright with plugs. It is recommendable in these cases to drill right through the
masonry and secure the drill upright with a threaded rod (e.g. M12), secured
from the other side by a washer and nut.
3.3.4. Securing with vacuum suction
When carrying out core-drilling operations on items with shiny surfaces (e.g.
tiles or marble) that do not permit securing with plugs, the drill upright can be
secured by vacuum suction. Check the suitability of the surface for vacuum
suction. This method of securing is suitable for the REMS Duplex and Duplex
300. The required drill-upright components are supplied with the unit. Proceed
as follows:
Place the sealing ring (43) into the channel on the underside of the sole plate
(6). Close off the slot (7) in the sole plate (6) with the cover plate with hose
connection (42). Attach a conventional vacuum pump to the hose connection
(41), and secure the underside of the drill upright by suction. Check the vacuum
pressure constantly during drilling (pressure gauge). Observe the operating
instructions supplied with the vacuum pump. Operate the drill at low feed pres-
sure.
3.3.5. Securing with a quick-action upright
The REMS Duplex and Duplex 300 also offers the possibility of securing the
drill upright between the floor and ceiling, or between two walls. This is done,
for example, by placing a conventional quick-action upright or a 1¼" steel pipe
between the grip head (29) of the drill upright and the ceiling/wall, and tightening
it by holding a tool such as a screw driver in the transverse hole. Tighten the
locknut (30).
Note that the quick-action upright or steel pipe must be aligned with the boring
trestle, and that the threaded spindle (33) should be screwed by at least 20
mm into the thread of the boring trestle, and into the thread of the grip head,
in order to guarantee a stable support. Use a piece of wood or metal to distribute
the pressure force of the quick-action upright evenly on the ceiling or wall.
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