Hilti Sid 4 A22 Parts Diagram [verified] (2026 Update)

These generate the "hit." A loss of driving power often indicates a weakened main spring or lack of lubrication. 2. Motor Assembly (Brushless)

The trigger assembly. If the tool runs intermittently or the LED light stays on/off, this is the likely culprit. Hilti Sid 4 A22 Parts Diagram

Some parts are only sold as a "kit." For example, you might not be able to buy a single gear; you may need to buy the entire Gearbox Assembly . ⚠️ Maintenance Tips for Longevity These generate the "hit

Tools are often updated mid-production. Check your tool’s serial number against the diagram version (Generation 01 vs. Generation 02). If the tool runs intermittently or the LED

If the repair looks too complex (especially the impact mechanism), Hilti's "Tool Fleet Management" or repair centers offer quick turnarounds.

The heavy metal piece that strikes the bit. If your bits are wobbling excessively, the anvil or the front bushing may be worn.