Splicing Applications; Drilling Aid; Manual Cleaning (Mc) - Hilti HIT-HY 200-R V3 Manual

Splicing applications

Drilling aid

Drill hole cleaning

Manual Cleaning (MC)

ETA 19/0665 v03 of 22/01/2020

Measure and control concrete cover c.

c = c + d /2.
drill 0

Drill parallel to edge and to existing rebar.

Where applicable use Hilti drilling aid HIT-BH
For holes l > 20 cm use drilling aid.
b
Ensure that the drill hole is parallel to the existing rebar.
Three different options can be considered:

Hilti drilling aid HIT-BH

Lath or spirit level

Visual check
Just before setting the bar the drill hole must be free of dust and debris.
Inadequate hole cleaning = poor load values.
For drill hole diameters d
The Hilti hand pump may be used for blowing out drill holes up to diameters
≤ 20 mm and embedment depths up to l
d
0
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 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 out again with the Hilti hand pump at least 4 times until return air stream is
free of noticeable dust.
Hilti HIT-HY 200-R V3
Intended Use
Installation instructions
.
≤ 20 mm and drill hole depths l
0
≤ 10 ϕ .
b
≤ 10 ϕ .
b
Annex B8/2
of ETA N° 19/0665
page 13 of 18