1. Úvod
Thank you for choosing the HiKOKI GT13 Benchtop Electric Grinder. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your new tool. Please read this manual thoroughly before operating the grinder and keep it for future reference. Proper understanding and adherence to these instructions will ensure optimal performance and extend the lifespan of your GT13 grinder.
2. Bezpečnostní pokyny
Always observe basic safety precautions to reduce the risk of fire, electric shock, and personal injury. This section outlines general power tool safety and specific safety guidelines for benchtop grinders.
2.1 Obecná bezpečnost elektrického nářadí
- Bezpečnost pracovního prostoru: Udržujte pracovní prostor čistý a dobře osvětlený. Nepořádek nebo tmavé prostory vedou k nehodám. Nepoužívejte elektrické nářadí ve výbušném prostředí, například v přítomnosti hořlavých kapalin, plynů nebo prachu.
- Elektrická bezpečnost: Zástrčky elektrického nářadí musí odpovídat zásuvce. Nikdy zástrčku nijak neupravujte. Zabraňte kontaktu těla s uzemněnými povrchy, jako jsou potrubí, radiátory, sporáky a ledničky.
- Osobní bezpečnost: Always wear eye protection. Use hearing protection when operating noisy tools. Dress properly; avoid loose clothing or jewelry that can get caught in moving parts.
- Použití a péče o nářadí: Netlačte na elektrické nářadí silou. Používejte správné elektrické nářadí pro danou aplikaci. Před prováděním jakýchkoli úprav, výměnou příslušenství nebo uložením elektrického nářadí odpojte zástrčku od zdroje napájení.
2.2 Benchtop Grinder Specific Safety
- Brusné kotouče: Use only grinding wheels rated for the maximum RPM of the grinder. Inspect wheels for cracks or damage before each use. Never use a damaged wheel.
- Guards and Rests: Ensure all guards are in place and securely fastened before operation. Adjust tool rests to within 1/16 inch (1.6 mm) of the grinding wheel to prevent workpieces from jamming.
- Manipulace s obrobky: Always hold the workpiece firmly against the tool rest. Do not grind on the side of the wheel unless the wheel is specifically designed for side grinding.
- Směr jiskry: Position the grinder so that sparks are directed away from flammable materials and other personnel.
- Vibrace: Excessive vibration may indicate a damaged or unbalanced wheel. Stop the grinder immediately and inspect the wheel.
3. Součásti a funkce
The HiKOKI GT13 Benchtop Electric Grinder is designed for various grinding and sharpening tasks. Familiarize yourself with its main components:
- Brusné kotouče: Two wheels, typically one coarse (#36 grit) and one fine (#60 grit), for different grinding needs.
- Kryty kol: Protective covers around the grinding wheels.
- Tool Rests: Adjustable platforms to support workpieces during grinding.
- Spark Guards/Eye Shields: Transparent shields to protect the operator from sparks and debris.
- Pouzdro motoru: Encloses the electric motor.
- Vypínač: On/Off switch for operation.
- Báze: Sturdy base for mounting the grinder to a workbench.

Obrázek 3.1: Přední strana view of the HiKOKI GT13 Benchtop Electric Grinder, showing the two grinding wheels, adjustable tool rests, and transparent spark guards.

Obrázek 3.2: Zadní view of the HiKOKI GT13 Benchtop Electric Grinder, highlighting the power cord connection and the sturdy base designed for secure mounting.

Figure 3.3: Size comparison of the HiKOKI GT13 Benchtop Electric Grinder, indicating its compact yet robust dimensions suitable for various workshop environments.
4. Nastavení a montáž
Before operating your grinder, ensure it is properly set up and secured.
- Rozbalení: Carefully remove the grinder and all accessories from the packaging. Inspect for any shipping damage.
- Montáž: Securely bolt the grinder to a sturdy workbench using the mounting holes in the base. This prevents the grinder from moving during operation.
- Attaching Tool Rests: Attach the tool rests to their respective sides. Adjust them so that the gap between the tool rest and the grinding wheel is no more than 1/16 inch (1.6 mm). This minimizes the risk of the workpiece being pulled into the gap.
- Installing Spark Guards/Eye Shields: Mount the transparent spark guards. Adjust their position to provide maximum protection without obstructing your view obrobku.
- Elektrické připojení: Ensure the power switch is in the "OFF" position. Plug the grinder into a grounded 100V AC outlet.
5. Návod k obsluze
Follow these steps for safe and effective operation of your HiKOKI GT13 grinder.
- Předoperační kontrola: Before each use, verify that all guards and tool rests are securely in place and properly adjusted. Ensure the work area is clear of obstructions.
- Spuštění mlýnku: Turn the power switch to the "ON" position. Allow the grinder to reach full operating speed before beginning any work.
- Technika broušení:
- Držte obrobek pevně u dosedací plochy nástroje.
- Apply light, even pressure to the grinding wheel. Do not force the workpiece against the wheel, as this can cause overheating, damage the wheel, or reduce motor life.
- Move the workpiece slowly and consistently across the face of the wheel to ensure even wear and prevent grooving.
- Use the coarse wheel (#36 grit) for rapid material removal and the fine wheel (#60 grit) for finishing and sharpening.
- Cooling Workpiece: For metal grinding, frequently dip the workpiece in water to prevent overheating, which can alter the metal's properties.
- Zastavení mlýnku: Turn the power switch to the "OFF" position. Wait for the wheels to come to a complete stop before leaving the grinder unattended or performing any adjustments.
6. Údržba
Regular maintenance ensures the longevity and safe operation of your grinder. Always disconnect the power cord before performing any maintenance.
- Čištění: Regularly clean dust and debris from the grinder, especially around the motor vents, using compressed air or a soft brush.
- Ošetření kol: Over time, grinding wheels can become glazed or out of round. Use a wheel dresser to restore the wheel's cutting surface and true its shape. This should be done with the grinder running and proper safety precautions.
- Výměna kola: Replace grinding wheels when they become too small, worn, or damaged. Ensure replacement wheels match the specifications (diameter, arbor hole, thickness, and maximum RPM) of the original wheels.
- Nastavení opěrky nástroje: Periodically check and adjust the tool rests to maintain the proper 1/16 inch (1.6 mm) gap from the grinding wheel.
- Kontrola napájecího kabelu: Zkontrolujte napájecí kabel, zda nevykazuje známky poškození, proříznutí nebo roztřepení. V případě poškození jej vyměňte.
7. Řešení problémů
This section provides solutions to common issues you might encounter with your HiKOKI GT13 grinder.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Mlýnek se nespustí. | Žádné napájení; vadný spínač; přetížení motoru. | Check power cord and outlet. Ensure switch is ON. Allow motor to cool if overloaded. |
| Nadměrné vibrace. | Unbalanced or damaged grinding wheel; loose mounting bolts. | Dress or replace grinding wheel. Tighten mounting bolts. |
| Grinding wheel not cutting effectively. | Glazed or dull wheel. | Dress the grinding wheel using a wheel dresser. |
| Motor se přehřívá. | Excessive pressure during grinding; blocked ventilation. | Reduce grinding pressure. Clean motor vents. |
8. Specifikace
Key technical specifications for the HiKOKI GT13 Benchtop Electric Grinder:
| Funkce | Detail |
|---|---|
| Značka | Ahoj KOKI |
| Číslo modelu | GT13 |
| Rozměry produktu (D x Š x V) | 33 x 13 x 22 cm |
| Hmotnost produktu | 8.7 kg (cca 19.18 lb) |
| Zdroj napájení | Elektrický kabel |
| svtage | 100 voltů |
| Wattage | 230 W |
| Maximální rychlost otáčení | 3000 min⁻¹ (50Hz) / 3600 min⁻¹ (60Hz) |
| Průměr kola | 125 mm |
| Tloušťka kola | 13 mm |
| Průměr otvoru pro vřeteno | 12.7 mm |
| Grinding Wheel Grit | WA #36 / #60 |
| Délka kabelu | 2.0 m |
9. Záruka a podpora
For warranty information, technical support, or service inquiries, please contact HiKOKI customer service or visit the official HiKOKI webwebu. Uschovejte si účtenku jako doklad o koupi.
Oficiální HiKOKI Webmísto: www.hikoki-powertools.com





