| Symptom | Part to Look For on Diagram | Approx. Diagram Zone | | :--- | :--- | :--- | | Drills but doesn’t hammer | Impact mechanism O-ring (often #42) | Middle section | | Smoke & speed loss | Carbon brushes (usually #111 & #112) | Rear electrical area | | Bit falls out | SDS locking balls (often #78) & spring (#79) | Front nose assembly |
The TE 17’s heart is its universal motor. The parts diagram clearly separates:
Pro tip: If the tool sparks excessively at the brushes, examine the commutator. If grooved more than 0.5mm, replace the entire armature. hilti te 17 parts diagram
Based on the official Hilti TE 17 spare parts list (document number 237862), the tool splits into seven functional groups:
Before you open the tool housing, understand that the TE 17 is a precision instrument. It uses an electro-pneumatic (EP) impact mechanism—a complex system of pistons, O-rings, and air cushions. Guessing which part is broken can turn a $50 repair into a $300 replacement. | Symptom | Part to Look For on Diagram | Approx
A detailed Hilti TE 17 parts diagram serves three critical purposes:
The Hilti TE 17 is a legendary electro-pneumatic rotary hammer. While Hilti has since replaced it with newer models like the TE 2 and TE 4, thousands of TE 17 units remain in active service on job sites worldwide. Known for its robust 800-watt motor and reliable hammering mechanism, this tool is a favorite for drilling anchor holes in concrete up to 1 inch in diameter. Pro tip : If the tool sparks excessively
However, even Hilti tools wear out. When your TE 17 loses power, leaks oil, or stops hammering, you have two options: scrap a $500+ tool or repair it. To repair it, you need a Hilti TE 17 parts diagram. This article breaks down every major assembly, explains the function of key components, and tells you where to find authentic diagrams.