1. Safety Information
Read and understand all safety warnings and instructions before operating this lawn mower. Failure to follow these instructions may result in serious injury.
- Always wear appropriate personal protective equipment (PPE), including safety glasses, sturdy footwear, and hearing protection.
- Keep hands and feet away from rotating parts. The blade continues to rotate for a short period after the engine is switched off.
- Do not operate the mower in wet grass or rain.
- Clear the area of objects such as rocks, toys, and wires before mowing.
- Never allow children or untrained individuals to operate the lawn mower.
- Refuel in a well-ventilated area with the engine off and cool. Do not smoke while refueling.
- Always disconnect the spark plug wire before performing any maintenance or cleaning.
2. Setup and Assembly
Follow these steps to prepare your lawn mower for first use.
2.1 Unpacking
Carefully remove all components from the packaging. Ensure all parts are present according to the packing list.
2.2 Handle Assembly
- Unfold the handle and secure it in the operating position using the provided knobs or levers.
- Ensure all cables are routed correctly and not pinched.
2.3 Adding Engine Oil
The engine is shipped without oil. It is crucial to add the correct type and amount of oil before starting.
- Place the mower on a level surface.
- Locate the oil fill cap/dipstick.
- Carefully pour the recommended engine oil (e.g., SAE 30 or 10W-30, approximately 0.5 liters) into the oil fill opening until it reaches the 'FULL' mark on the dipstick. Do not overfill.
2.4 Adding Fuel
Use fresh, unleaded gasoline with an octane rating of 87 or higher. Do not use E85 fuel.
- Ensure the engine is off and cool.
- Open the fuel tank cap.
- Fill the fuel tank, leaving a small space for expansion.
- Securely close the fuel tank cap.
2.5 Grass Collection Bag Attachment
Assemble the grass collection bag if necessary and attach it to the rear discharge opening of the mower.
3. Operating Instructions
Familiarize yourself with the controls and operating procedures before starting the engine.
3.1 Starting the Engine
- Ensure the fuel tank is filled and engine oil is at the correct level.
- Press the primer bulb (if equipped) 3-5 times until fuel is visible.
- Move the throttle lever to the 'START' or 'CHOKE' position.
- Firmly grasp the starter handle and pull the starter cord with a smooth, continuous motion until the engine starts.
- Once the engine starts, gradually move the throttle lever to the 'RUN' position.
3.2 Adjusting Cutting Height
The cutting height can be adjusted to 5 levels, ranging from 25 mm to 70 mm.
- Ensure the engine is off and the blade has stopped rotating.
- Locate the height adjustment levers, typically near the wheels.
- Move the levers to the desired cutting height setting. Ensure all wheels are set to the same height.
3.3 Engaging Self-Propulsion
This model features self-propulsion for easier operation.
- With the engine running, engage the self-propel lever (usually located on the handle).
- The mower will begin to move forward. Release the lever to disengage self-propulsion.
3.4 Emptying the Grass Bag
Regularly check and empty the grass collection bag to maintain optimal cutting performance.
- Stop the engine and wait for the blade to stop completely.
- Lift the rear discharge flap and carefully remove the grass bag.
- Empty the grass clippings into a suitable container.
- Reattach the grass bag securely.
3.5 Stopping the Engine
To stop the engine, release the engine brake lever (usually located on the handle). The engine will shut off automatically.
4. Maintenance
Regular maintenance ensures the longevity and optimal performance of your lawn mower.
4.1 Cleaning
- After each use, clean the underside of the mower deck to prevent grass buildup.
- This model features a water hose connection for easy deck cleaning. Attach a garden hose to the nozzle, start the engine, and engage the blade for a few minutes to clean the deck.
- Clean the exterior with a damp cloth. Do not use high-pressure washers directly on the engine or electrical components.
4.2 Blade Care
- Regularly inspect the blade for sharpness and damage. A dull blade tears grass, leading to an unhealthy lawn.
- If the blade is dull, have it sharpened or replaced by a qualified service technician.
- Always disconnect the spark plug wire before inspecting or working on the blade.
4.3 Engine Oil Change
Change the engine oil after the first 5 hours of operation, then every 25 hours or annually, whichever comes first.
- Run the engine for a few minutes to warm the oil.
- Stop the engine and disconnect the spark plug wire.
- Place a suitable container under the oil drain plug (or tilt the mower to drain from the fill tube).
- Remove the drain plug (or fill cap) and allow the oil to drain completely.
- Replace the drain plug and refill with the recommended amount and type of new engine oil.
4.4 Air Filter Inspection and Cleaning
Inspect the air filter regularly and clean or replace it as needed to ensure proper engine performance.
4.5 Spark Plug Inspection
Inspect the spark plug annually or every 50 hours. Clean or replace if necessary.
4.6 Storage
For long-term storage, ensure the fuel tank is empty or treated with a fuel stabilizer. Clean the mower thoroughly and store it in a dry, protected area. The foldable handle allows for space-saving storage.
5. Troubleshooting
This section addresses common issues you might encounter with your lawn mower.
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine will not start |
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| Mower cuts unevenly |
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| Excessive vibration |
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| Self-propulsion not engaging |
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6. Specifications
Key technical details for the LEHMANN LGALM-2642 Lawn Mower.
| Feature | Detail |
|---|---|
| Model Number | LGALM-2642 |
| Engine Type | 146 cm³ OHV Internal Combustion Engine |
| Engine Power | 3.49 hp (2.6 kW) |
| Cutting Width | 42 cm |
| Cutting Height Adjustment | 5 levels (25 mm - 70 mm) |
| Grass Bag Capacity | 40 Liters |
| Recommended Lawn Area | Up to 2000 m² |
| Operation Mode | Self-Propelled (Automatic) |
| Material | Alloy Steel |
| Item Weight | 29 kg |
| Product Dimensions (L x W x H) | Approx. 139 cm x 48 cm x 103 cm (assembled) |
7. Warranty and Support
LEHMANN products are designed for reliability and performance. For warranty information, please refer to the documentation included with your purchase or contact LEHMANN customer service.
7.1 Customer Support
If you have any questions, require technical assistance, or need to order replacement parts, please contact LEHMANN customer support through the retailer where you purchased the product or visit the official LEHMANN website for contact details.
When contacting support, please have your model number (LGALM-2642) and purchase date available.
