European technical assessment ETA-0 8 / 0 2 0 2
English translation prepared by CSTB
Compressed Air Cleaning
(CAC) for hammer drilled holes
Manual Cleaning (MC)
for hammer drilled holes
Injection system Hilti HIT-HY 150 MAX
Product description
Installation instruction
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 B5).
Blow 2 times from the back of the hole over the hole 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.
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.
Safety tip:
Start machine brushing operation slowly.
Start brushing operation once the brush is inserted in the borehole.
Use the appropriate air nozzle Hilti HIT-DL (see Table B5).
Blow 2 times from the back of the hole over the hole 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.
For drill hole diameters d
The Hilti hand pump may be used for blowing out drill holes up to diameters d
20 mm and drill hole depths h
Blow out at least 4 times from the back of the drill hole until return air stream is
free of noticeable dust.
Brush 4 times with the specified brush (see Table B5) 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 the Hilti hand pump at least 4 times until return air stream is free
of noticeable dust.
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≤ 20 mm and all drill hole depths h
0
≤ 10 · ϕ.
0
Annex B13
≤ 10 · ϕ.
0
≤
0