Hilti Sid - 4 A22 Parts Diagram ((new))
The Hilti SID 4-A22 Go to product viewer dialog for this item.
A 1/4" hexagonal click-in bit holder surrounded by four LED lights for direct workspace illumination. Electronic Unit & Switch (Part #2148040):
Official Support: Hilti recommends using only genuine spare parts to ensure safety. You can find approved accessories and parts directly at Hilti's Online Store. Hilti Sid 4 A22 Parts Diagram
A. The Insert Tool (Bit Holder) Assembly
This is the front of the tool and the most common area for wear and tear.
Understanding the specs is vital for selecting the correct replacement parts: Battery Compatibility: B22 series Li-ion batteries and C4/36 series Gear Settings: The Hilti SID 4-A22 Go to product viewer
For internal repairs, these are the most frequently requested components for the Original Chuck Assembly (#2150017) Go to product viewer dialog for this item. : Includes the locking sleeve and spring mechanism Electronics Unit & Switch (#2148040) Go to product viewer dialog for this item. : The main control board and trigger assembly Speed Regulator (#2148041) Go to product viewer dialog for this item.
“Exploded parts view for SID 4 A22, serial range [your tool’s S/N]” You can find approved accessories and parts directly
2.2 The Planetary Gear Reduction Preceding the impact mechanism in the diagram is the planetary gear set. The schematic typically displays a sun gear driven by the motor, surrounded by planetary gears within a carrier. This visual arrangement in the parts list is critical; it signifies the reduction of motor RPM (Revolutions Per Minute) into the high torque (Newton-meters) required for driving. The diagram explicitly categorizes the grease retention washers and bearing shields, emphasizing that the gear system is a sealed environment requiring specific lubrication protocols—often missed in casual repair attempts.