The TE 22 utilizes a robust gear train to convert the high-speed rotation of the electric motor into low-speed, high-torque rotation for drilling, while simultaneously driving the piston crankshaft. Key parts include the eccentric gear, drive pinion, and various needle bearings. The Motor and Electrical System
| Problem | Likely Culprit Parts (See Diagram) | Troubleshooting Steps | | :--- | :--- | :--- | | | Trigger Switch, Carbon Brushes, Capacitor, Power Cord, Armature | 1. Check power source (outlet, extension cord). 2. Inspect the power cord visually. 3. Remove brushes to inspect length and condition. 4. If comfortable, test the trigger switch with a multimeter. | | Tool starts, but hammering is weak or absent | Inner Ram (Stössel), Piston/Cylinder, Impact Mechanism, Grease | 1. Check if the tool is in the "hammer" mode. 2. Try re-greasing the bit shanks. 3. If the problem persists, internal mechanical disassembly is required. | | Bit won't lock or is stuck in chuck | Ball Bearings, Springs, Front Chuck Mechanism | 1. Try cleaning the chuck and the bit shank. 2. If bit is stuck, it may be due to worn bearings. Disassembly is required. | | Excessive sparking at motor | Carbon Brushes | 1. Inspect and replace the carbon brushes immediately. | | Tool is weak or loses power | Carbon Brushes, Armature, Field Coil | 1. Start by checking and replacing the brushes. 2. If the problem remains, the motor components (armature/field) may be failing. | | Tool vibrates excessively | Bearings, Internal components | Internal bearings may be worn. Full disassembly is needed to identify and replace the specific bearing(s). |
The Hilti TE 22 is a rotary hammer drill, and I'll provide you with a general overview of its main components. Keep in mind that this might not be a fully detailed, exploded-view diagram, but I'll list the main parts to give you an idea of how it's assembled. hilti te 22 parts diagram work
Disconnect the power cord from the wall. Use the diagram to locate the main housing screws. Remove the outer casing carefully, taking note of varying screw lengths. Lay out removed parts on a magnetic tray in the exact order you removed them. Step 2: Diagnostic Cleaning
2. The Gearbox and Electro-Pneumatic Piston Mechanism (Center Section) The TE 22 utilizes a robust gear train
Inspect the power cord (#17) for damage, the switch (#97), and the carbon brushes (#101) for excessive wear.
| Component | Typical Issue | Diagram Section | |-----------|--------------|----------------| | Carbon brushes | Tool loses power | Motor housing | | Piston seal | No hammering action | Hammer mechanism | | Trigger switch | Intermittent start | Electronics | | SDS chuck | Bit falls out | Tool holder | Check power source (outlet, extension cord)
The Hilti TE 22 is a vintage corded rotary hammer drill . While highly regarded for its longevity and performance, it is increasingly difficult to maintain due to obsolete parts and limited professional support
Before disassembling the tool, use the diagram to hypothesize where a failure might be. For example, if the tool hammers but does not rotate, the diagram points you toward the transmission gears. If the tool smokes or sparks excessively, the diagram directs you toward the armature or brush assembly.
These spring-loaded carbon blocks transfer electrical current to the spinning rotor. They are the most common wear item.