Introduction
This manual provides detailed instructions for the safe and effective use of your Imetec Hi-Man GK3 500 Beard Trimmer. Please read all instructions carefully before using the appliance and retain this manual for future reference.
Important Safety Information
To reduce the risk of electric shock, injury, or damage to the appliance, always follow these basic safety precautions:
- Water Proximity: Do not use this appliance near water, such as bathtubs, showers, basins, or other vessels containing water.
- Infants: This appliance is not intended for use on infants.
- Cleaning: Always follow the cleaning instructions provided in this manual to prevent skin irritation or injuries. Ensure the appliance is unplugged before cleaning.
- Power Source: Use only the charger supplied with the appliance.
- Damage: Do not operate the appliance if it has a damaged cord or plug, if it is not working properly, or if it has been dropped or damaged.
- Storage: Store the appliance in a dry place, away from extreme temperatures.
Package Contents
Verify that all items are present in the package:
- Imetec Hi-Man GK3 500 Beard Trimmer Unit
- U-Blade Trimmer Head
- Precision Trimmer Head
- Spacer Comb for U-Blade Head (adjustable)
- Storage Case
- Cleaning Kit (brush and oil)
- Power Adapter/Charging Cable

Figure 1: The Imetec Hi-Man GK3 500 Beard Trimmer shown with its complete set of accessories, including the main trimmer unit, U-blade, precision head, adjustable comb, cleaning brush, oil, and a grey storage pouch.
Product Overview

Figure 2: The Imetec Hi-Man GK3 500 Beard Trimmer, highlighting its ergonomic design and key features like the power indicator and "5 in 1" functionality.
The Imetec Hi-Man GK3 500 is a versatile 5-in-1 grooming kit designed for beard trimming and styling. It features washable heads for easy cleaning and offers 7 length settings for precise control.
- Main Unit: Ergonomically designed handle with power button and charging indicator.
- U-Blade Trimmer Head: For general beard trimming and creating a 3-day beard effect.
- Precision Trimmer Head: For detailing and fine lines.
- Adjustable Spacer Comb: Attaches to the U-Blade head for length adjustments from 0.7 mm to 13 mm.
Setup
1. Charging the Trimmer
The trimmer operates on a rechargeable battery and can also be used corded. Before first use, fully charge the trimmer for optimal performance.
- Ensure the trimmer is switched off.
- Connect the charging cable to the trimmer's charging port.
- Plug the power adapter into a suitable electrical outlet.
- The charging indicator light will illuminate (typically blue) to show that the trimmer is charging.
- Allow the trimmer to charge for the recommended duration (refer to the specific charging time in the full product manual, if available).
- Once fully charged, unplug the adapter from the outlet and then from the trimmer.
2. Attaching/Detaching Trimmer Heads and Combs
The trimmer comes with interchangeable heads and an adjustable comb for various styling needs.
- To Attach a Head: Align the desired trimmer head (U-Blade or Precision) with the main unit and gently push until it clicks into place.
- To Detach a Head: Hold the main unit firmly and gently pull the trimmer head upwards or away from the unit.
- To Attach the Spacer Comb: Ensure the U-Blade trimmer head is attached. Slide the spacer comb onto the U-Blade head until it securely clips.
- To Adjust Length Setting: The spacer comb allows for 7 length settings from 0.7 mm to 13 mm. Adjust the comb by sliding it up or down to select the desired length. Refer to the markings on the comb for specific lengths.

Figure 3: The adjustable spacer comb, demonstrating how to select different trimming lengths for precise styling.
Operating Instructions
1. Before Trimming
- Ensure your beard is clean and dry.
- Comb your beard in the direction of hair growth to untangle any knots.
- Select the appropriate trimmer head and length setting for your desired style.
2. Trimming Your Beard
- Press the power button to turn on the trimmer.
- For general beard trimming, use the U-Blade head with the spacer comb attached. Start with a longer length setting and gradually reduce it until you achieve your desired length.
- Move the trimmer against the direction of hair growth, using slow, even strokes.
- For detailing and precise lines (e.g., around the neckline or sideburns), remove the spacer comb or attach the Precision Trimmer Head.
- After trimming, press the power button to turn off the trimmer.
3. Creating a 3-Day Beard Effect
To achieve a short, stubble look, use the U-Blade trimmer head with the shortest length setting (0.7 mm) on the spacer comb, or without the comb for an even closer trim (exercise caution). Trim evenly across the desired area.
Maintenance
1. Cleaning the Trimmer
The Imetec Hi-Man GK3 500 features washable heads for easy cleaning.
- Ensure the trimmer is switched off and unplugged from the power outlet.
- Detach the trimmer head from the main unit.
- Rinse the trimmer head under running tap water to remove hair clippings.
- Use the provided cleaning brush to remove any stubborn hair from the blades and inside the head.
- Allow the trimmer head to air dry completely before reattaching it to the main unit or storing.
- Note: The main unit is not washable. Do not immerse the main unit in water.

Figure 4: The washable trimmer head being cleaned under running water, illustrating the ease of maintenance.
2. Oiling the Blades
Regular oiling helps maintain blade performance and longevity.
- After cleaning and drying, apply a small drop of the provided lubricating oil to the blades.
- Turn on the trimmer for a few seconds to distribute the oil evenly.
- Wipe off any excess oil with a soft cloth.
3. Storage
Store the trimmer and its accessories in the provided storage case in a dry, cool place, away from direct sunlight and out of reach of children.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not turn on. | Battery is depleted. Power button not pressed correctly. | Charge the trimmer. Press the power button firmly. |
| Trimmer pulls hair or cuts poorly. | Blades are dull or dirty. Blades are not oiled. Hair is too long or tangled. | Clean the blades thoroughly. Apply lubricating oil to the blades. Trim longer hair with scissors first, then use the trimmer. |
| Trimmer head detaches during use. | Head not properly attached. | Ensure the trimmer head clicks securely into place. |
| Charging indicator light not on. | Charger not connected properly. Power outlet issue. | Check all connections. Try a different power outlet. |
Specifications
| Brand | Imetec |
| Model Number | 12421 |
| Dimensions (L x W x H) | 8.6 x 21.8 x 24 cm |
| Weight | 260 grams |
| Power Source | Corded (Rechargeable) |
| Special Feature | Rechargeable, Washable Heads |
| Blade Material | Stainless Steel |
| Length Settings | 7 settings (0.7 mm to 13 mm) |
| Target Audience | Men |
| Batteries Required | Yes (2 AA, for main unit rechargeable operation) |
Warranty and Support
Specific warranty details for the Imetec Hi-Man GK3 500 Beard Trimmer are typically provided with the product packaging or on the manufacturer's official website. Please refer to these sources for comprehensive warranty information.
For technical support, spare parts, or service inquiries, please contact Imetec customer service through their official website or the contact information provided in your product documentation.





