| Interval | Action | |--------------------|------------------------------------------------------------------------| | Daily | Clean ventilation slots (compressed air). Check cord & plug for damage. | | Weekly | Clean chuck (blow out dust). Lubricate SDS bits lightly with Hilti grease. | | Monthly | Check carbon brushes (replace when ≤ 5 mm). Clean tool exterior. | | Every 2–3 months | Have service center check impact mechanism (if used heavily). | | As needed | Replace dust shield (worn = dust ingress → premature failure). |
Many units found today include a keyless chuck for quick bit changes. It is often sold with a signature Hilti carrying case and accessories. Hilti Tm8 Manual-
Below is a based on standard Hilti TE 8 documentation. Hilti Tm8 Manual-