AT3723U - Grass trimmer DOLMAR - Free user manual and instructions
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| Product Type | Grass Trimmer |
| Brand | Dolmar |
| Model | AT3723U |
| Power Type | Petrol (2-stroke) |
| Engine Displacement | 37.2 cm³ |
| Power Output | 1.5 kW |
| Cutting Width | 45 cm |
| Weight (without fuel) | 5.8 kg |
| Fuel Tank Capacity | 0.6 L |
| Starting System | Recoil starter |
| Shaft Type | Straight shaft |
| Handle Type | Bike handle (adjustable) |
| Cutting Head | Tap-feed bump head |
| Line Diameter | 2.4 mm |
| Safety Features | Safety guard, throttle lock, stop switch |
| Maintenance | Air filter cleaning, spark plug replacement, gear greasing |
| Noise Level (LwA) | 110 dB(A) |
| Vibration Level (ahv) | 8.5 m/s² |
| Parts Availability | Spare parts through Dolmar dealers |
| Warranty | 2 years limited |
Frequently Asked Questions - AT3723U DOLMAR
How do I start the Dolmar AT3723U grass trimmer?
Ensure the fuel tank has a proper 50:1 fuel-oil mix. Set the choke to closed, pull the recoil starter briskly until the engine fires, then open the choke and pull again to start.
What fuel mixture does the AT3723U require?
Use a 50:1 ratio of unleaded gasoline (95 RON) to high-quality 2-stroke oil (ISO-L-EGD or JASO FC grade).
How do I replace the cutting line?
Press and turn the bump head to release the line. Remove old line, wind new 2.4 mm line in the direction indicated (usually clockwise), then pass ends through eyelets and reassemble.
How often should I clean the air filter?
Check the air filter every 10 hours of use. Clean with warm soapy water, dry thoroughly, and re-oil with filter oil before reinstalling.
What safety precautions should I take while using this trimmer?
Always wear safety goggles, gloves, and sturdy shoes. Keep the safety guard in place. Never operate near people or pets. Ensure the throttle lock is engaged when not cutting.
How do I store the trimmer for winter?
Drain the fuel tank and run the engine until dry. Clean the cutting head and exterior. Remove the spark plug and add a teaspoon of oil, then pull the starter to distribute. Store in a dry place.
What is the correct spark plug for the AT3723U?
Use NGK BPMR7A or equivalent. Gap should be 0.6-0.7 mm. Replace every 100 hours or annually.
Can I use a blade attachment instead of line?
Yes, the STD-5 blade is compatible. Remove the bump head, install the blade adapter and blade. Ensure the guard is suitable for blades.
Why does my trimmer vibrate excessively?
Excessive vibration may be due to a bent shaft, unbalanced cutting head, or worn gears. Inspect and replace damaged parts. Tighten all fasteners.
Where can I find spare parts for the AT3723U?
Parts are available through authorized Dolmar dealers and online retailers. Use the model number (AT3723U) to find correct parts like air filters, spark plugs, and cutting heads.
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USER MANUAL AT3723U DOLMAR
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Product information
Brand : DOLMAR
Model : AT3723U
Category : Grass trimmer