OSHA 1926.1153, Section VII (1)

DRS-S Submittal
5
DRILLING — ROTARY HAMMER DRILLS AND COMBI-HAMMERS
TE Dust Control — OSHA
Hilti developed drilling dust collection systems with a shroud, to be attached to a Hilti vacuum with a filter cleaning mechanism and
99% filter efficiency, compliant with OSHA 1926.1153, Table 1.
Set-up
1. Attach the appropriate dust collection shroud to the drill.
2. Insert the bit. Rotate the bit in the chuck until you hear a clicking noise to verify that the bit is firmly inserted into the chuck.
3. Choose the correct collector based on the system and insert being used.
4. Set the proper depth using the depth gauge mechanism on the shroud. This will either be a depth gauge rod (DRS-Y, hollow drill
bits) or a set of tabbed stops (DRS 4-A/6-A/M, DRS-S)
5. Verify that the bit is flush or below the surface of the dust collection device. Note that for the DRS-Y, with 24” bits, the bit will
extend approximately 1” beyond the shroud.
6. Make sure that drilling shroud extends and retracts freely.
7. Start vacuum.
8. Verify proper operation of the dust collection system, including suction at the extraction head.
• Check for damage or leaks in the vacuum, hose, and extraction head.
• See instructions for vacuum.
Drilling
1. Start the vacuum before beginning to drill.
• Hold the drill perpendicular to the work surface and keep the extraction head in contact with the work surface.
2. To maximize dust collection, after the hole is drilled, slowly withdraw bit from the hole, and keep the drill running until the bit is
fully withdrawn.
Cleaning and maintenance
• See instructions for vacuum.