Hilti Te 17 Parts Diagram [updated]

The story of the Hilti TE 17 is the history of a tool that changed construction forever. Launched in

Hilti TE 17 , introduced in 1967, was a revolutionary tool that featured the first electropneumatic hammering mechanism, fundamentally changing how concrete was drilled. Because it is a vintage machine, official parts diagrams from hilti te 17 parts diagram

The Hilti TE 17 uses the SDS-plus standard. The parts diagram for the chuck includes: The story of the Hilti TE 17 is

Common TE 17 Failures and Diagram-Supported Fixes

• Reference numbers – Each part has a small number next to it (e.g., “08” for the armature).
• Parts list table – Matches reference numbers to Hilti’s 6-digit order number and description.
• Dashed lines – Indicate assemblies sold as a complete unit (e.g., the switch assembly includes wires and capacitor).
• Cross-section callouts – Circles with letters point to detailed views of tight areas like the chuck.

• Low impact or “soft” blows: worn piston/striker or damaged cylinder seals; inspect piston for scoring, check seals/grease.
• No rotation but motor runs: broken gear teeth or stripped coupling; open gearbox to inspect gears and bearings.
• Intermittent power/arcing: worn brushes or faulty trigger/switch; test brushes for length and inspect commutator.
• Excessive vibration/noise: damaged bearings, loose screws, or worn percussion components.
• Overheating: clogged vents, failing fan, low/contaminated grease, or stalled motor under load.
• Bit slipping or difficulty ejecting: worn SDS locking balls/sleeve or damaged retaining components.

• The piston and connecting rod
• The impact bolt (a heavy steel rod that strikes the bit)
• The O-ring and wiper seals (the #1 failure point for loss of hammering power)