Operating Instructions for Hilti NCT IS 045-A22 Electro-Hydraulic Cutting Tool
Quick guide for the Hilti NCT IS 045-A22 electro-hydraulic cutting tool. Includes setup, operation, maintenance, and troubleshooting steps.
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This document provides essential information for the safe and efficient operation of the Hilti NCT IS 045-A22 electro-hydraulic cutting tool. Before using the tool, ensure you have read the safety instructions and that the battery is fully charged. The tool is designed for cutting copper, aluminum, and steel cables. Always keep hands and fingers clear of the cutting head during operation.
Product overview
The tool consists of the following main components:


- Cutting head
- Manual piston return switch
- Casing
- Servicing and fault indicator (red LED)
- Battery release button
- Battery
- Slot for Hilti retaining strap
- White LED work light
- Control switch
Intended use
The NCT IS 045-A22 is a cordless electro-hydraulic cutting tool intended for cutting copper (Cu), aluminum (Al), and steel (e.g., ACSR) cables. Use only Hilti B 22 series lithium-ion batteries and C4/36 series chargers with this product. Do not use the tool in heavy rain or underwater, and do not use it as a stationary device.
Technical data
Key specifications include:
- Rated voltage: 21.6 V
- Weight: 4.0 kg
- Max. cable diameter: 45 mm
- Max. cutting capacity (ACSR): 44.4 mm (1590 MCM)
- Operating temperature: -17 °C to 60 °C
Preparations at the workplace
Before starting work, ensure the tool is switched off and the battery is removed before making any adjustments or changing accessories. Ensure the battery contacts and the tool contacts are clean and free of foreign matter before insertion.
Operation
Cutting procedure:

- Rotate the cutting head to the desired working position (can be rotated 350°).
- Place the cable to be cut into the cutting head. Ensure the cable is fully inserted.
- Press the control switch.
- Keep the switch pressed until the cutting head releases pressure (indicated by an audible pop).
- The tool returns automatically to its initial position.
In cold weather, perform 5 to 10 empty pressing operations to warm up the hydraulic oil.
Care and maintenance
Always remove the battery before performing maintenance. Clean the housing with a slightly damp cloth and use a dry, soft brush for air vents. Do not use silicone-based cleaning agents. Regularly check all visible parts for damage and ensure controls function correctly. Use only genuine Hilti spare parts.
Troubleshooting
If the tool is not working, check the battery charge status. If the red LED lights continuously, a technical problem may exist; contact Hilti Service. If the product overheats, allow it to cool down before resuming operation.
Manufacturer information
Hilti Corporation
Practical help
Common problems
Ensure the battery is fully inserted until it engages with a double click, or charge the battery if it is discharged.
The battery is discharged or at an extreme temperature. Charge the battery or allow it to reach room temperature.
Technical problem. Incorrect operation is possible. Contact Hilti Service.
Allow the product to cool down.
Before use
- Ensure the battery is fully charged.
- Check that battery contacts are clean and dry.
- Verify the tool is in perfect working order.
- Ensure the work area is clear of live cables.
- Check that the cutting head is securely locked.
Specs in practice
- Rated voltage
- 21.6 V (requires Hilti B 22 series batteries).
- Max. cable diameter
- 45 mm is the maximum capacity for standard cables.
Images and diagrams
- 1: Overview of tool components and controls.
- 2: Assembly of the optional Hilti retaining strap.
- 3: Standard cutting operation steps.
- 4: Making a cut with the cable connected.
Model compatibility
- Compatible only with Hilti B 22 series lithium-ion batteries.
- Use only Hilti C4/36 series battery chargers.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.