Roller Centro S1 Notice D'utilisation page 21

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2.3.1 Fitting the diamond core drilling crown
WARNING
Unplug from the mains power supply! Unplug from the mains power supply! Screw the selected diamond core 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 ((54) accessory art. no.
180015) between the diamond core drill crown and the drive spindle. Firm
tightening with an open-ended wrench is not necessary. 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
WARNING
Unplug from the mains power supply! Use an SW 32 wrench to hold the Unplug from the mains power supply! Use an SW 32 wrench to hold the Unplug from the mains power supply!
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 fi nished. With wet-drilling operations in particular, there is also
a danger of the diamond core drilling crown becoming corroded, making it
diffi cult to remove.
NOTICE
The casing pipes of the diamond core drilling crown are not hardened. 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
ROLLER'S Universal diamond core drilling crowns have roof-shaped diamond
segments and do not have to be sharpened in the as-delivered state. At the
right thrust pressure and possibly by adding water, the diamond segments
sharpen themselves. Unsuitable thrust pressure as well as dry drilling in concrete
leads to the diamond segments being "polished" and no longer being able to
cut. If this occurs, use the diamond core drilling crown to drill 10 mm to 15 mm
into sandstone, asphalt or a sharpening stone ((55) accessory art. no. 079012)
in order to sharpen the diamond-tipped segments once more.
2.4 Manually-controlled dry boring ROLLER'S Centro S1, ROLLER'S Centro
S3 and ROLLER'S Centro SR (fi g. 4)
Secure the holder-up (12) to the drill collar (13) of the drive unit.
WARNING
Only use the tool held by hand with the brace (12) fi tted (danger of injury)!
Never perform hand-held dry drilling with ROLLER'S Centro SR in stage
1. The resulting high torque can lead to injury.
Inhalation of the dusts produced by dry drilling is harmful to the health. Observe
the national regulations. It is recommended to use the suction rotor ((46) acces-
sory art. no. 180160) and a safety vacuum cleaner/dust extractor of dust class
M e.g. ROLLER'S Protector M (Art. No. 185501) with suitable fi lter (observe
the operating instructions of the safety vacuum cleaner/dust extractor).
CAUTION CAUTION
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.
NOTICE
Always wet drilling for steel-reinforced concrete!
2.4.1 Tapping tool for ROLLER'S Centro S1, Centro S3 and Centro SR
Manually-controlled tapping is made considerably easier, thanks to the ROLLER
tapping tool (49). This is fi tted 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 ROLLER'S Centro S1, ROLLER'S Centro S3 and ROLLER'S
Centro SR (fi g. 4)
WARNING
Inhalation of the dusts produced by dry drilling is harmful to the health. Observe
the national regulations. It is recommended to use a dust extractor to remove
drilling dust from the core bore. This consists of the ROLLER suction rotor ((46)
accessory art. no. 180160) for dust extraction and safety vacuum cleaner/dust
extractor of dust class M suitable for commercial use, e.g. ROLLER'S Protector
M (Art. No. 185501). Observe the operating instructions of the safety vacuum
cleaner/dust extractor. 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 fi tting of diamond core drilling
crowns with female thread UNC 1¼ and the attachment of the tapping tool (49).
NOTICE
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 risk of injury when the
drilling dust compressed in the gap blocks the diamond core drilling crown.
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
All manuals and user guides at all-guides.com
hole. To connect the water supply system (15), remove the cover (14) and
attach the water supply system with the fi llister head screw supplied. The
quick-action coupling with water shutoff device should be fi tted with a ½" water
hose. Water pressure should not exceed 4 bar.
If there is no direct water connection available, water throughfl ow can be
achieved using the water pressure tank (( achieved using the water pressure tank ((51) accessory art. no. 182006). Be achieved using the water pressure tank ((51) accessory art. no. 182006). Be
aware that there is suffi cient water fl ow.
When drilling with ROLLER'S Bohrständer T or ROLLER'S Bohrständer S2 the
water extractor ((44) accessory art. no. 183606) can be used. See Fig. 10 and
11 for assembly. This consists of a water collecting ring, a pressure ring and a
rubber washer (45). The water extractor is fi xed to the base of the drilling column
(1). The water collecting ring is connected to a wet vacuum cleaner suitable
for commercial use, e.g. ROLLER'S Protector L or ROLLER'S Protector M.
The rubber washer (45) must be cut out exactly to fi t the diameter of the diamond
core drilling crown.
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. ROLLER'S Centro S1, ROLLER'S Centro S3 and
ROLLER'S Centro SR can be mounted optionally on the ROLLER'S Bohrständer
S2 or ROLLER'S Bohrständer T drill stands. ROLLER'S Centro S2/3,5 must
be mounted on ROLLER'S Bohrständer T.
In ROLLER'S Bohrständer T the clamping angle (10) or the ROLLER'S Centro
S2/3.5 must be mounted. The clamping angle (10) or the ROLLER'S Centro
S2/3.5 must be inserted in the guide (53) and fastened with the screws (52) for
this.
The boring trestle (1) of ROLLER'S Bohrständer T is infi nitely adjustable up to
45°. This allows angled core drilling operations to be carried out within this
angle range. The degree marks on the struts (40) serve for orientation. To adjust
the angle, the two screws (31) at the foot of the boring trestle (1) are removed.
The hexagon head screw (37) and all the screws on the two struts must be
loosened. The boring trestle can now be swivelled to the desired position.
Retighten all screws before proceeding. The screws (31) are not installed to
produce the angled core drilling operation(s). The swivel adjustment of the
boring trestle causes the useful stroke range of the feed device of the ROLLER'S
Bohrständer T to decrease more or less. This means that you may have to use
corresponding annular bit extensions ((50) accessory art. no. 180155) (see
3.7).
The feed slide (2) can be locked on the drill stands. Tighten the wing nut (32)
for this. Locking prevents such undesired movements as the accidental lowering
of the drive unit while the diamond core drilling crown is being replaced.
On all drill stands the feed lever (4) can be fi tted to the right or left of the feed
slider (2) according to local conditions (not preassembled in the as-delivered
state of ROLLER'S Bohrständer S2). Lock the feed slider as described above
for this. Unscrew the fi llister head screw (34). Pull the feed lever off the feed
shaft and push it onto the shaft stump opposite. Screw in and tighten the fi llister
head screw (34).
To achieve better stability when drilling with ROLLER'S Bohrständer T and
ROLLER'S Centro SR, the spacer set (38) can be mounted. For this, the
clamping angle (10) may have to be disassembled from the ROLLER'S
Bohrständer T by loosening the screws (52). Then clamping angle (10) is pushed
onto the drill collar (13) of the ROLLER'S Centro SR so that the tapped holes
(60) of the gearbox casing of Centro SR are positioned in relation to the screw
holes of the clamping angle (10). Insert the spacer (without fi llister head screws)
and align. Screw in the fi llister head screws included in the set and tighten.
Tighten the fi llister head screws (8) of the clamping angle (10). Fix the mounted
clamping bracket together with Centro SR to the ROLLER'S Bohrständer T as
described in 3.4.
NOTICE
Remove dirt from between rack and slide immediately otherwise the slide can
block. The rack and slide could also be damaged.
2.7 Laser drilling centre pointer
To position the ROLLER drill stand, the laser drilling centre pointer ((58) acces-
sory art. no. 183604) is inserted into the clamping bracket (10) and tightened
with the fi llister head screws (8). After switching on the laser drilling centre
pointer, the drill stand can be aligned accurately at the marked drilling centre
with the laser point and fi xed in position.
WARNING
Do not look directly into the laser beam!
2.8 Drilling template ROLLER'S Bohrständer T
A drilling template ((64) accessory art. no. 183605) can be used for ROLLER'S
Bohrständer T for easier location of the plug hole.
3 Operation
Use eye protection
Use ear protection
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Use a respirator
Use hand protection
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