Compressed Air Cleaning (Cac) - Hilti HIT-HY 200-R V3 Manual

Compressed Air Cleaning
(CAC)
Compressed Air Cleaning
(CAC)
ETA 19/0665 v03 of 22/01/2020
For all drill hole diameters d
Blow 2 times from the back of the hole (if needed with nozzle extension) over the
whole length with oil-free compressed air (min. 6 bar at 6 m³/h) until return air
stream is free of noticeable dust.
Safety tip:
Do not inhale concrete dust.
Use of the dust collector Hilti HIT-DRS is recommended.
Brush 2 times with the specified brush (see Table B6) by inserting the steel brush
Hilti HIT-RB to the back of the hole (if needed with extension) in a twisting motion
and removing it.
The brush must produce natural resistance as it enters the drill hole
(brush Ø ≥ drill hole Ø) - if not the brush is too small and must be replaced with
the proper brush diameter.
Blow again with compressed air 2 times until return air stream is free of noticeable
dust.
For drill holes deeper than 250 mm (for ϕ 8 to ϕ 12) or deeper than
20 ϕ (for ϕ > 12 mm)
Use the appropriate air nozzle Hilti HIT-DL (see Table B6).
Blow 2 times from the back of the hole over the whole length with oil-free
compressed air until return air stream is free of noticeable dust.
For drill hole diameters ≥ 32 mm the compressor has to supply a minimum air flow
of 140 m³/h.
Safety tip:
Do not inhale concrete dust.
Use of the dust collector Hilti HIT-DRS is recommended.
Screw the round steel brush HIT-RB in one end of the brush extension(s)
HIT-RBS, so that the overall length of the brush is sufficient to reach the base of
the drill hole. Attach the other end of the extension to the TE-C/TE-Y chuck.
Brush 2 times with the specified brush (see Table B6) by inserting the steel brush
Hilti HIT-RB to the back of the hole (if needed with extension) and removing it.
Safety tip:
Start machine brushing operation slowly.
Start brushing operation once the brush is inserted in the drillhole.
Use the appropriate air nozzle Hilti HIT-DL (see Table B6).
Blow 2 times from the back of the hole over the whole length with oil-free
compressed air until return air stream is free of noticeable dust.
Safety tip:
Do not inhale concrete dust.
Use of the dust collector Hilti HIT-DRS is recommended.
Hilti HIT-HY 200-R V3
Intended Use
Installation instructions
and all drill hole depths l
0
≤ 20 ϕ.
b
Annex B8/3
of ETA N° 19/0665
page 14 of 18