Hilti Sid 4 A22 Parts Diagram Apr 2026
1. Introduction The Hilti SID 4 A22 is a high-torque, brushless cordless impact wrench operating on Hilti’s 22V Nuron battery platform. Unlike consumer-grade tools, Hilti designs its tools for serviceability in professional environments. The parts diagram (exploded view) is an essential document for identifying internal components, ordering replacement parts, and performing repairs.
For professional fleet managers, the diagram is most useful for ordering (anvil, trigger, battery terminals) and housing parts . For complex internal failures, Hilti’s service center remains the recommended repair path – but the parts diagram gives full transparency into what lies inside the yellow-black housing. Reference: Hilti SID 4 A22 Exploded View Drawing No. 2073894 (typical). Always verify part numbers using your tool’s serial number with Hilti Online. Hilti Sid 4 A22 Parts Diagram
These parts rarely break but may need replacement if the housing cracks from drops. The diagram shows how the two half-shells align with (Ref 005) to maintain dust and moisture resistance (IP rating). B. Impact Mechanism & Drive Train This is the core of the tool. The parts diagram details: The parts diagram (exploded view) is an essential
The parts diagram clearly shows , confirming the brushless design. The stator and rotor are sold separately – but Hilti often provides a “motor service kit” (Ref 025) including bearings and fan. D. Electronics & Control Board | Diagram Ref | Part Name | Critical Features | |-------------|-----------|--------------------| | 030 | Main control PCB | Contains MOSFETs, microcontroller, current sensing | | 031 | Mode selection button / LED board | Controls torque settings (3 modes) + battery gauge | | 032 | Trigger switch assembly | Variable speed potentiometer + mechanical interlock | | 033 | Thermal sensor (on stator) | Prevents overheating | Reference: Hilti SID 4 A22 Exploded View Drawing No
1. Introduction The Hilti SID 4 A22 is a high-torque, brushless cordless impact wrench operating on Hilti’s 22V Nuron battery platform. Unlike consumer-grade tools, Hilti designs its tools for serviceability in professional environments. The parts diagram (exploded view) is an essential document for identifying internal components, ordering replacement parts, and performing repairs.
For professional fleet managers, the diagram is most useful for ordering (anvil, trigger, battery terminals) and housing parts . For complex internal failures, Hilti’s service center remains the recommended repair path – but the parts diagram gives full transparency into what lies inside the yellow-black housing. Reference: Hilti SID 4 A22 Exploded View Drawing No. 2073894 (typical). Always verify part numbers using your tool’s serial number with Hilti Online.
These parts rarely break but may need replacement if the housing cracks from drops. The diagram shows how the two half-shells align with (Ref 005) to maintain dust and moisture resistance (IP rating). B. Impact Mechanism & Drive Train This is the core of the tool. The parts diagram details:
The parts diagram clearly shows , confirming the brushless design. The stator and rotor are sold separately – but Hilti often provides a “motor service kit” (Ref 025) including bearings and fan. D. Electronics & Control Board | Diagram Ref | Part Name | Critical Features | |-------------|-----------|--------------------| | 030 | Main control PCB | Contains MOSFETs, microcontroller, current sensing | | 031 | Mode selection button / LED board | Controls torque settings (3 modes) + battery gauge | | 032 | Trigger switch assembly | Variable speed potentiometer + mechanical interlock | | 033 | Thermal sensor (on stator) | Prevents overheating |
