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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 b ear by the varying periph-
eral speed and size of the bit. It is inevitable, espe cially during manually controlled
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.
WARNING
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.).
NOTICE
DO NOT switch the drive unit on and off to loosen a jammed diamond core
drilling crown. This can cause a machine defect (see 5.1.).
3.1. Manually-controlled dry boring REMS Picus S1, REMS Picus S3 and REMS
Picus SR
WARNING
Use the brace (12) provided with the power tool for hand-held drilling. Losing
control of the power tool can cause injuries. Always be prepared for blocking
of the diamond core drilling crown. Never use stage 1 for hand-held drilling.
There is a danger of injury from the power tool being torn from the hand and
spinning round as the torque increases.
CAUTION
When drilling dry by hand, the mounted water supply system (15) gets in the
way and should be removed. The holder for the water connection must be
sealed with the lid (14) otherwise dust can get into the machine.
Use dust extraction and suitable safety vacuum cleaner/dust extractor, e.g. REMS
Pull M. 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).
WARNING
Never lock the switch (21) of the drive unit for hand-held drilling (danger
of injury)! 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 unplug-
ging 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.
WARNING
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 ACCIDENTS: The drive unit
should be held fi rmly throughout in order to prevent torque-related jarring. Check
to ensure correct stability. Carry out larger core-drilling operations with the drill
upright.
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 diamond core drilling crown, the suction
rotor (46) and/or the 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.
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. Suitable safety equipment, e.g. respirator, disposable overalls,
must be used. Observe the national regulations.
NOTICE
Always wet drilling for steel-reinforced concrete!
3.2. Manually-controlled wet drilling REMS Picus S1, REMS Picus S3 and
REMS Picus SR
WARNING
Never carry out manually-controlled drilling without first fitting the holder-
up (danger of injury)!
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).
WARNING
NEVER block the drive unit switch during manually-controlled boring
(danger of injury)! 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 (danger of injury)!
Check to ensure correct stability. Carry out larger core-drilling operations with
the drill upright. Suck up the drilling water preferably with a suitable dry and
wet vacuum cleaner, e.g. REMS Pull L or REMS Pull M.
WARNING
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 m ore 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 for REMS Simplex 2 at distance of approx. 200 mm, for REMS
Titan with clamping angle for REMS Picus S1, REMS Picus S3 and Picus SR
approx. 250 mm, for REMS Titan with Picus S2/3,5 approx. 290 mm from the
centre of the core hole. Set plug hole Ø 15 mm, drilling depth approx. 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 30 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 drill stand can be aligned to drill a perpendicular hole using 4
adjusting screws (5) and the levelling block (56).
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 for REMS Simplex 2 at distance of approx. 200 mm, for REMS
Titan with clamping angle for REMS Picus S1, REMS Picus S3 and Picus SR
approx. 250 mm, for REMS Titan with Picus S2/3,5 approx. 290 mm from the
centre of the core hole. Set plug hole Ø 20 mm, drilling depth approx. 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 30 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 drill stand can be aligned to drill a perpen-
dicular hole using 4 adjusting screws (5) and the levelling block (56).
The expansion anchor can be removed after completion of the core-drilling
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