Identify the Generation: There were minor revisions to the TE 17 over its production life. Ensure your diagram matches your specific serial number.

By using a detailed parts diagram, you can keep this classic piece of engineering running for another forty years. Whether you are replacing a simple power cord or diving deep into the piston assembly, knowing the "anatomy" of your TE 17 is the key to a successful repair. AI responses may include mistakes. Learn more

The Hilti TE 17 is a legendary rotary hammer drill known for its durability and "pumping" pneumatic action. Even though it is a vintage tool, many professionals and DIY enthusiasts continue to maintain these machines because of their robust build quality. Finding a clear Hilti TE 17 parts diagram is the first step in successful maintenance or repair.

The heart of the Hilti TE 17 is the pneumatic impact system. Unlike modern electric drills that use a mechanical clutch, the TE 17 uses air pressure to drive a striker into the drill bit.

O-Rings and Seals: If your drill has lost its "hit," the O-rings on the piston (Part #72 or similar in most diagrams) are likely worn out. This causes air to bypass the piston, resulting in weak impact.

Carbon Brushes: These are designed to wear down over time. If the tool sparks excessively or won't start, check the brushes first. They are easily accessible via the side or rear covers.