How to re-air a HiKOKI 2nd Gen Nailer with an Inflator

By: Charlenne Woodcock on 16th May 2026
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Learn how to repressurise your HiKOKI 2nd Generation Nailer with Daniel, demonstrated on a 1st fix gun (NR1890DCAJPZ). This is the same process for the whole 2nd generation nail gun range: 2nd fix straight brad nailer (NT1865DSAJXZ), 2nd fix angled brad nailer (NT1865DSAJXZ) and the Metal Connector (NR1838DKAJXZ).

This process has been previously demonstrated with Nick from HiKOKI with a compressor and regulator. But with the regulator being more expensive and hard to buy, we recommend a more accessible kit consisting of an inflator and adapter, which you can buy as a kit exclusively at Multifix.

See this article for the full kit list and where you can get it: https://multifixuk.com/expert_hub/how-to-re-gas-hikoki-2nd-gen-1st-fix-framing-nailer

You will learn:
1. How to enter maintenance mode
2. How to remove the rear cap and access the gas valve
3. Correct re-gassing procedure and pressures, depending on the tool.
4. Tips to prevent gas leaks and extend tool life

A nailer with daily use would need re-aired every 3-6 months. 

📞 Any further questions? Contact us on 02032484086 or sales@multifixuk.com

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