Hilti Te 17 Parts Diagram May 2026

| Symptom | Likely Failed Part (from diagram) | Part Number | | :--- | :--- | :--- | | Tool runs but no hammer | Piston O-ring (#20) | 216720 | | Excessive sparking at rear | Carbon brushes (#13) | 214367 | | Bit falls out of chuck | Locking balls (#28) or spring (#29) | 215800 (ball) | | Intermittent power / won’t start | Trigger switch (#7) or cord entry | 234019 | | Loud grinding noise | Connecting rod needle bearing (#25) | 218550 | | Overheating after 5 min | Cooling fan (#15) or blocked vents | 219110 |

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

How to read it: The diagram shows the chuck in an exploded “stacked” order. When reassembling, the balls must seat into specific detents. Missing a single ball means bits will not lock. hilti te 17 parts diagram

The TE 17 features an SDS (Slotted Drive System) chuck – predecessor to SDS-Plus. Parts in this diagram group include:

When your TE 17 starts dropping bits, the issue is either worn locking balls or a broken compression spring. The diagram shows exactly how these three balls sit in their races. | Symptom | Likely Failed Part (from diagram)

The Hilti TE 17 is divided into four main sections, each clearly labeled in the official parts diagram:

Let’s walk through each section as depicted in a typical exploded view. How to read it: The diagram shows the

The Hilti TE 17 parts diagram shows a very tight tolerance between the drive piston and impact piston – that air gap is a safety feature. If you incorrectly reassemble the tool without the O-ring or with the wrong piston orientation, the tool can lock up at full speed, shattering the barrel.

Never power up the tool with the barrel removed – the impact piston can become a projectile.