Title: +038=229.001-#####T_04- Kjemisk anker Hilti HIT-HY 200 - Produktdatablad.pdf
The Hilti manual pump may be used for blowing out bore holes up to diameters d0 ≤ 20 mm and embedment depths up to hef ≤ 10d. Blow out at least 4 times from the back of the bore hole until return air stream is free of noticeable dustBrush 4 times with the specified brush size 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 bore hole -- if not the brush is too small and must be replaced with the proper brush diameter.Blow out again with manual pump at least 4 times until return air stream is free of noticeable dust.b) Compressed air cleaning (CAC) for all bore hole diameters d0 and all bore hole depth h0