HiKOKI 372-726 HEPA Filter Instruction Manual

1. Introduction

This manual provides essential instructions for the proper installation, use, and maintenance of the HiKOKI 372-726 HEPA Filter. Please read this manual thoroughly before using the product to ensure safe and efficient operation. Keep this manual for future reference.

2. Product Overview

The HiKOKI 372-726 is a High-Efficiency Particulate Air (HEPA) filter designed for use with specific HiKOKI cordless cleaners. HEPA filters are highly effective at capturing fine dust particles, making them ideal for environments where thorough dust removal is required. This filter is a crucial component for maintaining the air quality during cleaning operations.

Key Features:

• Designed for cordless cleaners.
• High-efficiency particulate air filtration.
• Code No. 372726.
• Single item pack.

Image: An exploded view showing the HiKOKI HEPA filter and a separate cloth filter, indicating how they fit together within a cordless cleaner's dust case.

3. Compatible Models

The HiKOKI 372-726 HEPA filter is compatible with the following HiKOKI cordless cleaner models:

• R14DSAL
• R14DA
• R18DSAL
• R18DA

This HEPA filter is specifically designed for 14.4V and 18V products only.

4. Important Safety Information

Always observe the following safety precautions to prevent accidents and ensure safe operation:

• WARNING: To prevent injury or electric shock, always turn off the power switch and remove the battery pack from the cordless cleaner before performing any maintenance, inspection, or filter replacement.
• CAUTION: The HEPA filter must be used in conjunction with a cloth filter set (HiKOKI part number 0037-1315). Using the HEPA filter without the cloth filter set may cause the product to malfunction or reduce its effectiveness.
• CAUTION: The HEPA filter cannot be washed. Attempting to wash the HEPA filter will damage it and render it ineffective.
• CAUTION: If the suction power of your cordless cleaner noticeably weakens, it is an indication that the HEPA filter needs to be replaced.

5. Installation Instructions

Follow these steps to properly install the HEPA filter into your HiKOKI cordless cleaner:

Image: A diagram illustrating the step-by-step process of disassembling the dust case, removing old filters, and installing the new HEPA filter and sealing ring.

1. Remove Dust Case: Twist the dust case approximately 120 degrees counter-clockwise to align the marks, then pull it off the cleaner housing.
2. Remove Pre-filter and Filter Holder: Hold the pre-filter and twist it counter-clockwise to detach it from the housing. Then, remove the filter holder.
3. Install HEPA Filter: Insert the new HEPA filter into the filter holder. Ensure it is seated correctly.
4. Install Sealing Ring: Place the sealing ring onto the filter holder, ensuring it is properly aligned and secured.
5. Attach Dust Case: Align the marks on the dust case and the cleaner housing. Push the dust case onto the housing and twist it approximately 120 degrees clockwise until it locks securely in place.

6. Maintenance

Proper maintenance ensures the longevity and effectiveness of your filter and cleaner.

HEPA Filter Maintenance:

• The HEPA filter cannot be washed.
• If the suction power of the cleaner weakens, replace the HEPA filter with a new one.

Cloth Filter Maintenance (if applicable):

If you are using a cloth filter set (0037-1315) in conjunction with the HEPA filter, follow these cleaning guidelines:

• Do not wash the cloth filter in a washing machine.
• Do not dry the cloth filter with hot water or by exposing it to fire.
• If fine dust or debris accumulates and reduces suction, gently tap the cloth filter to dislodge debris.
• Wash the cloth filter with lukewarm water until it feels clean.
• After washing, dry the cloth filter thoroughly in the shade before re-installing it.
• WARNING: Do not use gasoline, thinner, benzene, or kerosene for cleaning. These substances can damage plastic components.
• WARNING: Do not use an air gun or similar tools to blow air directly onto the product body or filter, as this may cause foreign objects to enter the internal parts and lead to malfunction.

Image: A section from the Japanese manual detailing maintenance instructions, specifically highlighting that the HEPA filter cannot be washed and showing proper cleaning methods for the cloth filter.

7. Troubleshooting

If you encounter issues with your cordless cleaner's performance after installing the HEPA filter, consider the following:

• Reduced Suction Power: If the suction power of your cleaner significantly decreases, the HEPA filter may be clogged. As the HEPA filter cannot be cleaned, it must be replaced. Ensure the cloth filter (if used) is also clean and properly installed.
• Improper Installation: Verify that the HEPA filter and dust case are correctly installed and securely locked in place according to the installation instructions. An improperly sealed dust case can lead to reduced suction.
• Incorrect Filter Usage: Ensure you are using the HEPA filter with the recommended cloth filter set (0037-1315) and that your cleaner is one of the compatible 14.4V or 18V models.

8. Specifications

9. Warranty and Support

For warranty information, technical support, or to purchase replacement parts, please contact HiKOKI customer service or visit their official website. Keep your purchase receipt as proof of purchase.

Image: An informational graphic explaining the brand transition from Hitachi Koki to HiKOKI, stating that manufacturing, sales, and service systems remain unchanged.