User manual HILTI HIT-RE 500-SD_INSTALLATION

[. . . ] Method 2 -- for water filled boreholes, submerged concrete or diamond cored boreholes: · Flush hole 2 times by inserting a water hose (water-line pressure) to the back of the borehole until water runs clear. · Brush 2 times with the specified brush size (brush Ø = borehole Ø) by inserting the round steel brush to the back of the borehole with a twisting motion and removing it. The brush should resist insertion into the borehole -- if not, the brush is too small and must be replaced with the proper brush diameter. [. . . ] Clean hole: Cleaning method has to be decided based on drilling method and borehole conditions (see flow chart above). Just before setting an anchor/rebar, the borehole must be free of dust and debris by one of the following methods: Method 1 -- for dry or water saturated concrete (refer to pictograms): · Blow from the back of the borehole with oil-free compressed air (min. 90psi at 3. 5 CFM (6 bar at 6 m3/h)) fully retracting the air extension 2 times until return air stream is free of noticeable dust. · Brush 2 times with the specified brush size (brush Ø = borehole Ø) by inserting the round steel brush to the back of the borehole in a twisting motion and removing it. The brush should resist insertion into the borehole -- 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. 9-10. Inject adhesive from the back of the borehole without forming air voids: Verify if borehole conditions have changed (e. g. If yes, repeat cleaning according points 2 - 4. · Inject the adhesive starting at the back of the borehole (use the extension for deep boreholes), slowly withdraw the mixer with each trigger pull. Fill holes approximately 2/3 full, or as required to ensure that the annular gap between the anchor/ rebar and the concrete is completely filled with adhesive along the embedment length. After injection is completed, depressurize the dispenser by pressing the release trigger. This will prevent further adhesive discharge from the mixer. · Piston plug injection -- HIT-SZ/IP recommended for borehole depth > 10 inch/250 mm. For water filled boreholes or submerged concrete, and overhead installation the piston plugs are required. Assemble HITRE-M mixer, extension(s) and appropriately sized piston plug HIT-SZ/IP. Insert piston plug to back of the borehole and 254 Hilti, Inc. [. . . ] Leave the mixer attached to the foil pack manifold and store under the recommended storage conditions. If reused, attach a new mixer and discard the initial quantity of anchor adhesive as described by point 8. °F 41 50 59 68 86 °C 5 10 15 20 30 twork / tgel 2. 5 hrs 2 hrs 1. 5 hrs 30 min 20 min 12 min tcure, ini 18 hrs 12 hrs 8 hrs 6 hrs 4 hrs 2 hrs tcure, full 72 hrs 48 hrs 24 hrs 12 hrs 8 hrs 4 hrs Time 104 40 Hilti, Inc. (US) 1-800-879-8000 | www. us. hilti. com I en español 1-800-879-5000 I Hilti (Canada) Corp. [. . . ]