1. Introduction

This manual provides step-by-step instructions for safely charging nitrogen (N₂) into an accumulator using a charging kit. Proper handling and correct procedures are essential to ensure efficient operation and safety.

2. Equipment Required

• Charging Kit
• Needle Valve
• Accumulator Bladder
• Wrench / Tools for Bolt Removal
• N₂ Gas Cylinder

3. N₂ Charging Procedure

Step 1: Install the Charging Kit

1. Remove the upper bolt of the accumulator.
2. Connect the charging kit to the accumulator.
3. Ensure the valve is locked to prevent external leaks.

Step 2: Perform N₂ Charging

4. Lock the needle valve to maintain pressure stability.
5. Connect the accumulator bladder to the charging kit.
6. Begin charging N₂ gas into the accumulator gradually.

4. Safety Precautions

⚠️ Caution:

• Always verify the correct nitrogen pressure before charging.
• Ensure all connections are tight to avoid leaks.
• Perform charging in a well-ventilated area.
• Never exceed the recommended pressure limit of the accumulator.

5. Post-Charging Verification

1. Close the N₂ supply valve and disconnect the charging kit.
2. Reinstall and securely tighten the upper bolt of the accumulator.
3. Check for leaks by monitoring pressure stability over time.

6. Troubleshooting Guide

7. Additional Notes

• Perform regular inspections of the accumulator pressure to maintain optimal performance.
• Store N₂ cylinders in an upright position and secure them properly.
• Follow manufacturer recommendations for accumulator pressure limits.