The heart of the hammer action, which acts on the ram.
If your Hilti TE 22 is not performing correctly, refer to these common solutions found in service manuals :
Unlike simple hammer drills, Hilti uses an air-compressing pneumatic system to strike the concrete with massive force.
Transfers power from the motor to the transmission. hilti te 22 parts diagram work
Converts rotational movement into the back-and-forth motion of the hammer mechanism.
: This is the "heart" of the hammer action. Crucial parts here include the drive piston striker piston piston pin assembly Transmission & Gearing : Components like the bevel gear bevel pinion , and various toothed gears manage the torque and speed delivered to the chuck. The Chuck & Tool Holder (or drill bit holder) is what secures your bits. It uses a locking sleeve assembly to ensure bits stay locked in during intense hammering. Common Maintenance & Repair Parts
The TE 22's internal architecture is designed to convert electrical rotation into high-impact hammer action. The heart of the hammer action, which acts on the ram
: Essential O-rings (e.g., 15.08x2.62 or 17x3) prevent grease leakage and maintain the pneumatic seal required for effective hammering. How the Mechanism Works The TE 22 operates using an electropneumatic drive . Motor Rotation : The electric motor spins the rotor.
A parts diagram is essentially an "exploded view" of your tool. For the Hilti TE 22, this drawing maps out every single component, from the front chuck to the internal motor, often with numbered call-outs.
Working with a allows you to revive a tool that can outlast many modern, cheaper alternatives. By focusing on the hammer mechanism and regular motor maintenance, you can keep your TE 22 running for years to come. Always ensure the tool is unplugged before servicing and use original parts for the best performance. The Chuck & Tool Holder (or drill bit
Download a – it contains the parts diagram and step-by-step “work” instructions. If the diagram alone is unclear, post the part number or a photo of the diagram section to a tool forum (e.g., GarageJournal, Reddit r/Tools) for help with assembly order or cross-referencing.
This connects the drill bit to the machine.
Based on the official Hilti TE 22 Spare Parts List, the core functional groups include: