A change in pitch, a sudden drop in impact force, or excess heat radiating from the gearbox are immediate signs to stop working and consult your parts diagram.
The spring-loaded outer sleeve captures the locking balls, securing the drill bit in place.
Before diving into the diagram, it's important to understand the tool it represents. The Hilti TE 22 is a corded rotary hammer, designed for heavy-duty drilling and light chiseling in materials like concrete, brick, and stone. It was the successor to the classic TE-17 and is built to withstand demanding job site conditions.
Moves within a cylinder, creating a cushion of compressed air that fires a metal ram directly into the back of the drill bit. hilti te 22 parts diagram work
Directs electricity safely through the system. How to Work with a Hilti TE 22 Parts Diagram
Official Hilti support for the TE 22 is limited due to its age, but several technical repositories host complete exploded views: Service Manuals
What is your Hilti TE 22 showing (e.g., motor spins but no hammer action, no power, burning smell)? Which section of the tool are you currently working on? A change in pitch, a sudden drop in
If the hammer action is weak, the O-rings (Pos 52, 53) inside the pneumatic system likely have failed, leading to air leaks. Replacing the piston seals restores pressure. 5. Maintenance and Lubrication
Sites specializing in older Bosch, Hilti, and Makita parts often carry aftermarket or genuine stock.
Tool holder (chuck), dust shield, retaining rings, and ball bearings. The Hilti TE 22 is a corded rotary
The motor's torque is transmitted via the bevel gears to the crankshaft .
to maintain impact power and tool life. Hilti recommends using their proprietary lubricants, as the wrong type can cause internal damage. Brush Replacement : If the tool loses power or fails to start, checking for worn carbon brushes is the first diagnostic step. Safety First
Driven by the motor armature, it converts rotational movement into the reciprocating motion required for hammering.