Industrial / Vacuum Cleaners
Operating instructions for Hilti NPR 19-22 Cordless Hydraulic Pipe Press Tool
Quick guide for the Hilti NPR 19-22 cordless hydraulic pipe press tool. Includes setup, operation, maintenance, and troubleshooting steps.
Quick answers from the manual
Quick answer
- The Hilti NPR 19-22 is a cordless electro-hydraulic pressing tool designed for connecting composite, steel, and copper pipes. It operates on 21.6V Hilti Nuron batteries. p. 10
Key actions
- Insert the pressing jaw into the tool head. p. 13
- Position the pressing jaw around the fitting. p. 14
- Press and hold the control switch until the piston retracts. p. 14
First start
- Charge the battery fully before first use. p. 12
- Insert the battery until it engages with an audible click. p. 12
Problems and fixes
Red LED flashes with warning tone
Pressing pressure not achieved; check usage and the pressed part.
p. 16
Red LED lights continuously
Technical problem or maintenance required; contact Hilti Service.
p. 16Maintenance and reset
- If the piston does not retract after pressing, press the reset button for manual retraction. p. 14
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Rated voltage | 21.6 V | Operating voltage | p. 11 |
| Max. pressing force | 19 kN | Maximum force applied | p. 11 |
| Weight | 1.8 kg | Weight according to EPTA Procedure 01 | p. 11 |
Where to find it in the PDF
- Product Overview p. 10
- Safety Instructions p. 6, 7, 8, 9
- Operation p. 14
- Technical Data p. 11
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The Hilti NPR 19-22 is a cordless, electro-hydraulic pressing tool designed for pressing fittings used to connect composite, steel, and copper pipes. Before using the tool, ensure the battery is fully charged and the correct pressing jaw is installed. Always wear appropriate personal protective equipment, including eye protection and gloves.
Product Overview
The tool features a pressing die, tool head, piston return switch, servicing and fault indicator, work-area light, control switch, locking pin, and battery status indicator.
Intended Use
This tool is intended for professional use by trained personnel. It is designed for pressing fittings on composite, steel, and copper pipes. Use only Hilti Nuron B 22 series batteries and approved Hilti chargers.
Preparations at the workplace
- Charging the battery: Ensure battery contacts are clean and dry before charging.
- Inserting the battery: Push the battery into the product until it engages with an audible click.
- Removing the battery: Press the battery release button and remove the battery.
Operation
Inserting the pressing jaw
- Select the suitable pressing jaw.
- Turn the tool head to access the locking pin.
- Press the locking pins and rotate them counterclockwise until they pop out.
- Insert the pressing jaw.
- Push the locking pins in until they engage.
Pressing procedure
- Insert the pressing jaw.
- Squeeze the legs of the pressing jaw to open it.
- Enclose the fitting to be installed.
- Press and hold the control switch until the piston retracts.
Care and maintenance
Regularly clean the air vents with a dry, soft brush. Use a slightly damp cloth to clean the housing; do not use silicone-based cleaning agents. Keep battery contacts free of oil and grease. If the tool is damaged or malfunctions, contact Hilti Service immediately.
Troubleshooting
If a fault occurs, observe the battery status indicator. Common issues include low battery charge, dirty battery contacts, or tool overheating. If the red LED flashes or lights continuously, refer to the troubleshooting table in the manual or contact Hilti Service.
Technical data
Rated voltage: 21.6 V. Weight: 1.8 kg. Max pressing force: 19 kN. Pressing time: approx. 4 seconds.
Manufacturer information
Hilti Corporation
Practical help
Common problems
Battery runs down more quickly than usual
Very low ambient temperature; allow the battery to warm up slowly to room temperature.
Battery does not engage with an audible click
The retaining lugs on the battery are dirty; clean the lugs and refit the battery.
Red LED flashes with warning tone
Pressing pressure not achieved; ensure correct usage and check the pressed part.
Red LED lights briefly without warning tone
Product overheated; allow the product to cool down.
Before use
- Ensure battery is fully charged.
- Check that battery contacts are clean and dry.
- Ensure the tool is switched off before inserting the battery.
- Check pressing jaws for damage or foreign objects.
- Ensure the locking pin is fully engaged.
- Wear appropriate personal protective equipment.
Specs in practice
- Rated voltage
- 21.6 V, the operating voltage of the tool.
- Max. pressing force
- 19 kN, the maximum force applied during the pressing operation.
- Pressing time
- Approx. 4 seconds, the duration of a single pressing cycle.
Images and diagrams
- Overview of tool components (1-12).
- Steps for inserting the pressing jaw (2).
- Steps for removing the pressing jaw (3).
- Steps for pressing operation (4).
Model compatibility
- Use only Hilti Nuron B 22 series batteries.
- Use only approved Hilti chargers.
- Compatible with composite, steel, and copper pipes.
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.