This document serves as an owner's manual and safety instructions for the STARK 22" 2.4HP 45CC Wood Cutting Chainsaw, Item: 82100. It provides comprehensive information on assembly, operation, maintenance, and safety precautions.
Function Description:
The STARK 22" 2.4HP 45CC Wood Cutting Chainsaw is an aluminum gasoline-powered tool designed for cutting and felling wood. It incorporates an automatic brake system with a wide front hand guard to reduce injury during operation. The anti-kickback chain further enhances safety by decreasing the probability of kickback. The chainsaw is built for durability and long life, featuring aluminum solid protection, making it suitable for extreme environments. The engine is an Eco-boost design, aiming for lower emissions, increased power, and improved fuel consumption. It also includes an engine clean air-intake system to efficiently prevent dust from entering the engine. Anti-vibration design ensures ease of use, and an aluminum solid crankcase allows it to withstand high rotational speeds. The electronic ignition with auto choke facilitates easy starting.
Important Technical Specifications:
- Engine Type: Petrol 2-stroke Commercial Grade
- Max. Power: 2.2KW
- Displacement: 45cc
- Max. Engine Speed: 11,000RPM
- Ignition Type: CDI
- Bar Type: Sprocket Nose
- Standard Bar Length: 22”
- Fuel Used: 25:1 (25 parts fuel to 1 part stroke oil) for up to 20 hours use; 40:1 Mix (40 parts fuel to 1 part stroke oil) after 20 hours use.
- Fuel Tank Capacity: 550mL
- Bar Oil Capacity: 260mL
- Bar Oil Type: SAE# 10W-30 or similar
- Chain Pitch: 0.325"
- Chain Type: Oregon / Carlton Spec Low Kickback
- EPA Approved: Yes
- Mass (Without guide bar and chain): 5.2 kg
- Dimensions (Without guide bar and chain): 480 x 260 x 300 (mm)
- Maximum Engine Speed W/ Cutting Attachment: 12000 rpm
- Maximum Engine Speed at Idle: 3400 rpm
- Maximum Cutting Length: 53 cm
- Sprocket: 7T x 0.325 in
- Saw Chain Gauge: 0.058 in
- Oil Feeding System: Automatic Pump with Adjuster
Usage Features:
The manual emphasizes several key usage features and safety protocols:
- Safe Operation: Always ensure the cutting area is free from obstructions. Maintain a firm grip with both hands, with the right hand on the rear handle and the left hand on the front handle. Avoid operating when fatigued, ill, or under the influence of medication, drugs, or alcohol.
- Fueling: Fuel the chainsaw in well-ventilated outdoor areas only. Always shut off the engine and allow it to cool before refueling. Use extreme caution when handling gasoline or fuel mix, as it is highly flammable. Do not smoke or bring any fire/flame near the fuel or chainsaw.
- Starting the Engine: The starting procedure involves filling fuel and chain oil tanks, setting the switch to "1", engaging the throttle lock button, pulling out the choke knob to the closed position, and then vigorously pulling the starter rope. Once the engine ignites, push in the choke knob and pull the starter again. Allow the engine to warm up slightly.
- Chain Brake: The chainsaw is equipped with an automatic brake to stop chain rotation upon kickback. This brake can also be operated manually by turning the front guard down to the guide bar. Users should confirm brake operation before each use by running the saw at full throttle and pushing the front hand guard forward; the chain should stop immediately.
- Carburetor Adjustment: The carburetor is factory-adjusted but may require fine-tuning based on operating conditions. Adjustments involve H and L needles and an idle adjusting screw (T). The L Needle is adjusted for maximum idling speed, and the T screw is adjusted to prevent the chain from turning at idle. The H Needle is adjusted for best cutting power.
- Transportation: When carrying by hand, the engine must be stopped, and the muffler should be away from the body. When transporting in a vehicle, the chain and bar must be covered with a chain guard, and the saw secured to prevent turnover or fuel spillage.
- Personal Protective Equipment (PPE): Operators must wear steel-toed footwear, snug-fitting clothing, heavy-duty non-slip gloves, eye protection or screen, an approved hard hat, and appropriate sound barriers. Hair should be secured above shoulder length.
Maintenance Features:
The manual provides a detailed maintenance schedule and instructions for various components:
- General Maintenance: Keep handles dry, clean, and free of oil or fuel mixture. Always turn off the engine before performing any maintenance.
- Guide Bar and Saw Chain:
- Assembly: Instructions are provided for installing the guide bar and saw chain, including fitting the chain to the sprocket, mounting the guide bar, and adjusting chain tension.
- Tension Adjustment: A new chain will expand, requiring frequent tension checks and readjustments. Proper tension is crucial to prevent derailment and degradation.
- Cleaning: Remove saw dust from the bar groove and oiling port when the guide bar is dismounted. Grease the nose sprocket.
- Wear Check: Reverse the guide bar occasionally to prevent partial wear. Check the bar rail for wear using a ruler.
- Sharpening: Sharpen the saw chain by placing a file on the cutter and pushing straight forward, maintaining correct filing and side plate angles. Check depth gauge and round off the front edge to reduce kickback.
- Engine Components:
- Cylinder Fins: Periodically clean dust clogging between the cylinder fins to prevent overheating.
- Spark Plug: Clean electrodes with a wire brush and reset the gap to .65mm as needed.
- Fuel and Oil Filters: Disassemble and wash with gasoline or replace if necessary.
- Dampers: Replace front and rear dampers if the adhered part is peeling or cracked.
- Sprocket: Check for cracks and excessive wear; replace if found. Never fit a new chain on a worn sprocket or a worn chain on a new sprocket.
- Troubleshooting (Care and Maintenance Table): Provides a guide for addressing common issues like difficulty in cold starting, lack of oil, sparking plug problems, and choked carburetor or radiator. Solutions include filling oil, cleaning components, replacing parts, or readjusting settings.
- Periodic Service Points: The manual includes a table outlining a maintenance schedule (Before starting work, After finishing work or daily, After each refueling, Weekly, Monthly, If fueled, If damaged, As required) for various parts like the complete machine, throttle, chain brake, oil filter, fuel tank, chain oil tank, chain lubrication, saw chain, guide bar, chain sprocket, air filter, cylinder fins, carburetor, spark plug, screws/nuts, and chain catcher.
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