This document is an Operator's Manual for Hyundai Hedge Trimmers, specifically models HYT2622-II and HYT2318. It provides essential information for the safe and effective operation and maintenance of these garden machinery tools.
Function Description
The Hyundai Hedge Trimmer is designed for cutting and trimming hedges, bushes, and ornamental shrubs in the domestic sector. It is explicitly stated that these tools are not suitable for use in public facilities, parks, sport centers, roadways, farms, or forestry sectors. The device is a hand-held, petrol-powered tool with a two-stroke engine, requiring a specific fuel-oil mixture for operation. Its primary function is to provide a reliable and efficient means of shaping and maintaining vegetation.
Important Technical Specifications
The manual details specifications for two models: HYT2622-II and HYT2318.
For the HYT2622-II model:
- Method of Use: Hand-held
- Weight: 6.5 kg
- Fuel Tank Capacity: 500 cm³
- Engine: IE 34F-2, Air-cooled, 2-stroke
- Engine Displacement: 25.4 cm³
- Max Altitude: 1000m
- Max Working Temperature: 40°C
- Max Engine Speed: 8500 rpm
- Engine Speed with Cutter Running: 4000 rpm
- Blade Length: 720 mm
- Effective Cutting Length: 660 mm
- Max Cutting Capacity: 28 mm
- Engine Idling Speed: 3200 rpm
- Maximum Shaft Brake Power of the Engine: 0.8 kW
- Fuel Ratio: 40:1 (petrol 2-stroke oil)
- Vibration Levels: 8.5 m/s² k = 3 m/s²
- Sound Pressure Level (LPA): 96 dB (A) k = 3 dB (A)
- Sound Power Level (LWA): 112 dB (A) k = 3 dB (A)
- Type of Spark Plug: RCJ6Y/CHAMPION
For the HYT2318 model:
- Method of Use: Hand-held
- Weight: 4.2 kg
- Fuel Tank Capacity: 500 cm³
- Engine: IE 32FN, Air-cooled, 2-stroke
- Engine Displacement: 23 cm³
- Max Altitude: 1000m
- Max Working Temperature: 40°C
- Max Engine Speed: 8500 rpm
- Engine Speed with Cutter Running: 4000 rpm
- Blade Length: 450 mm
- Effective Cutting Length: 550mm
- Max Cutting Capacity: 6 mm
- Engine Idling Speed: 3200 rpm
- Maximum Shaft Brake Power of the Engine: 0.6 kW
- Fuel Ratio: 40:1 (petrol 2-stroke oil)
- Vibration Levels: 6.3 m/s²
- Sound Pressure Level (LPA): 95 dB (A) k
- Sound Power Level (LWA): 111 dB (A) k
- Type of Spark Plug: RCJ6Y
The document also notes that a slight reduction in power may be noticed at higher temperatures (40°C), altitudes (1000m), and humidity (95%).
Usage Features
The manual emphasizes safety and proper operation. Key usage features and instructions include:
- Safety Warnings: Users must read and understand the manual before use. It warns against operating near children or pets, and highlights the importance of proper attire including sturdy gloves, non-skid footwear, safety glasses, and hearing protection.
- Fuel Handling: Fuels are flammable and vapours explosive. Refuelling must be done outdoors, with the engine off and cooled, using an approved container. Smoking is prohibited during refuelling. A specific 40:1 petrol to 2-stroke oil mixture is required (25ml or 40ml of oil per 1 litre of petrol depending on oil type).
- Starting the Engine: The process involves pressing the primer pump (around 10 times when cold or after refuelling), turning the engine switch to "ON," moving the choke lever to "START" (for cold starts) or "RUN" (for warm starts), locking the throttle trigger in idling position, and then pulling the recoil starter. The cutting attachment may move during startup, so ensuring no objects are in contact is crucial.
- Cutting Technique: Users are advised to keep running speed high during cutting to prevent premature clutch wear, but avoid prolonged use at maximum speed to extend engine life. The engine should face away from the hedge, and the machine held close to the body for balance. Cutting should be steady, from sides to top, using an arc motion for vertical cuts and a slight 5-10° tilt for horizontal cuts.
- Handle Adjustment (HYT2622-II only): The rear handle can be swiveled to three positions (left 90°, right 90°) to reduce fatigue. This adjustment requires releasing the throttle trigger and lockout, pulling the handle locking knob, turning the handle, and ensuring it clicks into place.
- Stopping the Engine: Reduce engine speed, let it run for a few minutes with no load, then move the engine switch to "STOP." Always ensure the cutting accessory has stopped turning before putting the unit down.
- Prohibited Conditions: Do not use the hedge trimmer if motor rotary speed changes, sparks occur, blades are damaged, misfire happens, high vibration is present, flames or smoke appear, or in rain/stormy weather.
Maintenance Features
Regular maintenance is crucial for safe, economical, and trouble-free operation, and to reduce air pollution.
- General Maintenance: Always turn off the engine and disconnect the spark plug wire before any maintenance. Allow the hedge trimmer to cool. Use only recommended accessories.
- Daily Maintenance:
- Clean the outside of the machine.
- Check throttle trigger lock and throttle function.
- Check engine switch function.
- Ensure blades do not move at idle or in start throttle position.
- Check blades for damage (cracks, wear) and replace if necessary.
- Check blade guard for damage/distortion and replace if necessary.
- Clean air filter and replace if necessary.
- Check nuts and screws are tight.
- Check for fuel leaks.
- Weekly Maintenance:
- Check starter and starter cord.
- Clean the outside of the spark plug, remove it, check electrode gap (0.6-0.7mm), and adjust.
- Monthly (or after 25 hours) Maintenance:
- Clean air filter (more frequently in dusty areas).
- Check and clean valve clearance.
- Clean fuel tank and filter.
- Grease inside gear box (after every 50 working hours) using special high-temperature, high-pressure grease. Do not overfill.
- Every Three Months (or after 50 hours) Maintenance:
- Check blades and replace if necessary.
- Every Six Months (or after 100 hours) Maintenance:
- Every Three Years Maintenance:
- Check and replace fuel feed line if necessary (specialist technician recommended).
- Cleaning: Clean the machine's exterior with a damp soft cloth and mild detergent. Avoid water, benzene, chloride, or ammonia-containing products on plastic parts. Keep ventilation inlets/outlets clear.
- Spark Plug: Recommended spark plug is RCJ6Y/CHAMPION. Regular inspection, cleaning carbon deposits with a wire brush, and checking the gap (0.6-0.7mm) are necessary.
- Carburettor Adjustment: The carburettor is factory-adjusted. Users should not need to adjust it unless there are specific issues. For running-in period adjustments, contact an authorised service centre. Idle speed can be adjusted via a screw behind the air filter cover.
- Cleaning and Lubrication: Clean resin and plant residue from blades with cleaning agent before and after use. Lubricate blade bars with anti-rust grease before long storage periods.
- Storage: Empty the fuel tank completely by running the engine until it stops, draining fuel into a container, and pressing the intake pump several times. Store the machine in a dry, well-ventilated area with the fuel tank empty and the cutting device transport guard fitted. Do not store fuel near the machine.
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