1. Important Safety Instructions
Please read and understand all safety instructions before operating the STEELITE 40V Electric Lawn Mower and 12-Inch Cordless String Trimmer Combo. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
General Safety Warnings:
- Read the Manual: Familiarize yourself with the controls and proper use of the equipment.
- Wear Appropriate Attire: Always wear safety glasses or goggles, long pants, sturdy footwear, and hearing protection.
- Keep Area Clear: Ensure the work area is clear of bystanders, children, and pets.
- Inspect Before Use: Check for damaged parts, loose fasteners, or any other condition that may affect safe operation.
- Avoid Wet Conditions: Do not operate electric lawn equipment in wet grass or rain.
- Battery Safety: Use only the specified battery packs and chargers. Do not expose batteries to water or extreme temperatures.
- Maintenance: Perform regular maintenance as described in this manual. Disconnect batteries before cleaning or performing any maintenance.
2. Product Overview and Components
The STEELITE 40V Electric Lawn Mower and 12-Inch Cordless String Trimmer Combo provides a complete solution for lawn care. This section details the main components of your new tools.
Included Components:
- 17-inch 40V Electric Lawn Mower
- 12-inch 20V Cordless String Trimmer
- 2x 20V 4.0Ah Batteries
- 2x Battery Chargers
- 6x String Trimmer Spools
- Grass Bag (for lawn mower)
- Protective Cover (for string trimmer)
- Subhandle (for string trimmer)
- Flower Guard (for string trimmer)
- User's Manual

3. Assembly
Follow these steps to assemble your STEELITE lawn mower and string trimmer.
3.1 String Trimmer Assembly
- Connect the Shaft: Carefully connect the two sections of the trimmer shaft. Ensure the internal wire is not pinched.
- Install Protective Cover: Attach the protective cover to the trimmer head using the provided screws.
- Adjust Cutting Head Angle: Press the adjustment button to set the desired cutting head angle for trimming or edging.
- Assemble Subhandle: Attach the subhandle to the main shaft and adjust its position for comfortable use.
- Install Flower Guard: Insert the flower guard into its designated slots on the trimmer head.
3.2 Lawn Mower Assembly
- Handle Assembly: Attach the lower handle sections to the mower body using the quick-assembly set. Secure the upper handle section.
- Grass Bag Assembly: Assemble the grass bag by attaching the frame to the bag material and securing the base.
- Attach Grass Bag: Lift the rear discharge flap and hook the assembled grass bag onto the mower.

4. Operation
This section provides instructions for operating your STEELITE lawn mower and string trimmer.
4.1 Lawn Mower Operation
- Insert Batteries: Open the battery compartment and insert both 20V 4.0Ah batteries until they click into place. Close the compartment.
- Adjust Cutting Height: Use the single lever to select one of the 6 cutting height positions, ranging from 0.98" to 2.95".
- Starting the Mower: Press the safety lock-off button, then pull the ON/OFF trigger to start the mower.
- Bagging/Mulching: The mower offers 2-in-1 functionality. Use the grass bag for collecting clippings or insert the mulch plug (if included) for mulching.



4.2 String Trimmer Operation
- Insert Battery: Insert one 20V 4.0Ah battery into the trimmer's battery slot.
- Starting the Trimmer: Press the safety button and pull the trigger to start the trimmer.
- Trimming and Edging: The trimmer can be used for both grass trimming and lawn edging. Adjust the cutting head angle as needed. The auxiliary wheel assists in precise edging.
- Flower Guard Use: Extend the flower guard to protect delicate plants and objects from the cutting line.

5. Maintenance
Regular maintenance ensures optimal performance and extends the life of your STEELITE lawn care tools.
General Maintenance Tips:
- Clean After Each Use: Remove grass clippings, dirt, and debris from both the mower deck and trimmer head. Use a dry cloth or soft brush.
- Blade Inspection (Lawn Mower): Regularly check the mower blade for sharpness and damage. Sharpen or replace as needed. Always disconnect batteries before inspecting the blade.
- String Line Replacement (String Trimmer): Replace the trimmer line when it becomes short or worn. Refer to the specific instructions for your trimmer model.
- Battery Care: Store batteries in a cool, dry place. Do not store fully discharged batteries for extended periods. Charge batteries fully before storage and periodically during long storage periods.
- Storage: Store the tools in a dry, secure location away from children. The lawn mower's foldable handle allows for compact storage.
6. Troubleshooting
If you encounter issues with your STEELITE lawn mower or string trimmer, refer to the following common problems and solutions.
Common Issues:
- Tool Does Not Start:
- Ensure batteries are fully charged and properly inserted.
- Check that the safety lock-off button is pressed before pulling the trigger.
- Inspect for any obstructions around the blade or trimmer line.
- Reduced Cutting Performance:
- Lawn mower blade may be dull or damaged. Sharpen or replace.
- Trimmer line may be too short or worn. Replace the line.
- Grass may be too wet or too tall. Adjust cutting height or mow in drier conditions.
- Excessive Vibration:
- Check for loose components or damaged blades/trimmer heads.
- Ensure the blade is balanced (lawn mower).
- Short Battery Runtime:
- Batteries may not be fully charged.
- Operating in very thick or wet grass can reduce runtime.
- Batteries may be nearing the end of their lifespan.
If these solutions do not resolve the issue, please contact STEELITE customer support.
7. Specifications
Detailed technical specifications for the STEELITE 40V Electric Lawn Mower and 12-Inch Cordless String Trimmer Combo.
| Specification | Value |
|---|---|
| Brand | Steelite |
| Model Number | AZDG511 |
| Power Source | DC (Battery Powered) |
| Lawn Mower Cutting Width | 17 Inches |
| Lawn Mower Cutting Height Positions | 6 (0.98" to 2.95") |
| Lawn Mower Item Weight | 51.7 Pounds |
| Lawn Mower Product Dimensions (D x W x H) | 37"D x 17"W x 22"H |
| String Trimmer Cutting Diameter | 12 Inches |
| Battery Type | 20V 4.0Ah Lithium-ion |
| Battery Average Life (Mower) | Up to 25 minutes (depending on conditions) |
| Motor Type | Brushless |
| Assembly Required | Yes |
8. Warranty and Customer Support
STEELITE products are manufactured to high-quality standards. For warranty information, please refer to the warranty card included with your product or visit the official STEELITE website.
For technical assistance, replacement parts, or any questions regarding your product, please contact STEELITE customer support through the contact information provided in your product packaging or on the official brand website.


