Before Use - Hilti HIT-DRS Instrucciones De Uso

Hilti HIT-DRS Dust removal system
It is essential that the operating instructions are read before the dust removal
system is operated for the first time.
Always keep these operating instructions together with the dust removal system.
Ensure that the operating instructions are with the dust removal system when it is
given to other persons.
Parts:
①
Dust removal system body
②
Quick clamping ring (for sealing disc)
③
Sealing disc
④
Dust removal system
⑤
Vacuum cleaner
⑥
Hose to vacuum cleaner
⑦
Blow-out gun / connector with air valve
⑧
Extension tube
⑨
Air nozzle
⑩
Compressed air hose
⑪
Air compressor
1. Use of product as directed
• This dust removal system is for collection of dust and debris when cleaning bore holes
in construction base materials like concrete, masonry, natural stone or wood.
• The use of this dust removal system is not allowed for cleaning bore holes in steel or
other metal based materials.
• Cleaning might be done with round steel brushes and compressed air.
• Base material might be dry or wet (wet: use appropriate vacuum cleaner).
• Assignment for diameters of round steel brushes, blow-out gun, extension tubes/hoses
or air nozzles sticking through the sealing disc of the dust removal system see table 1.
• The dust removal system has always to be used in conjunction with a vacuum cleaner.
The minimum of sucking conditions / technical requirements are specified under 3.
Operation.
• Maximum application temperature of the dust removal system is 50°C / 120°F.
• The dust removal system can be cleaned from dust by using water or cloth. No solvents
are allowed for dust removal system cleaning.
• This dust removal system is not designed and tested for use during bore hole drilling.
Therefore this application is not allowed.
2. Safety rules
• Always wear protective goggles and protective gloves when using the
dust removal system due to the fact that the sealing disc might not be
100% tight or dust may blown out between the base material and the
dust removal system. This might happen, if the cleaning air flow is hig-
her than the sucking volume of the vacuum cleaner used.
• Secure dust removal system against dropping down in wall and overhe-
ad applications, because it is not guaranteed that the dust removal
system will stay at the construction base material by the vacuum-based
force during operation.
3. Operation

3.1 Before use

• Clean used dust removal system before reuse to improve the visibility.
• Check dust removal system (body, quick clamping ring and sealing disc) for damages
before use. If any parts are cracked, partly broken, worn-out or lost, use a new dust
removal system.
• An appropriate sealing disc has to be selected and installed according to table 1.
Table 1:
Sealing disc
with 8mm / 5/16" hole
no sealing disc
• Sealing disc has to be properly fixed into the dust removal system body.
• Dust removal system has properly to be connected to a vacuum cleaner according to
the vacuum cleaner requirements.
Vacuum cleaner requirements:
- Sucking air flow at hose end: min. 42 Nl/sec. / 1.5 cu.ft/sec.
- Vacuum at hose end:
- Wet bore holes, wet base materials: use vacuum cleaner which is able to handle wet
dust and water.
- M-type vacuum cleaner is recommended.
Blowing out
Blow-out / tube / hose
(also with air nozzle up to
HIT-DL 32 or 1 3/8")
Ø 8 – 16 mm / 5/16" – 5/8"
not allowed
min. 150 mbar / 2 psi
Brushing
Round steel brush
Ø 10 – 22 mm / 7/16" – 7/8"
HIT-RB 10 – 22
HIT-RB 7/16" – 7/8"
Ø 24 – 35 mm / 1" – 1 3/8"
HIT-RB 24 – 35
HIT-RB 1" – 1 3/8"