1. Introduction
Thank you for choosing the Mainstays Sand Dune 2-Person Sling Outdoor Swing. This manual provides essential information for the safe assembly, operation, and maintenance of your new outdoor swing. Please read this manual thoroughly before assembly and retain it for future reference.

Image 1: The Mainstays Sand Dune 2-Person Sling Outdoor Swing, featuring a beige canopy and brown sling seats, situated on a patio with a garden background.
2. Important Safety Information
Observe the following safety guidelines to prevent injury and damage to the product:
- Read All Instructions: Ensure all assembly and operating instructions are read and understood before use.
- Adult Assembly Required: This product requires adult assembly. Keep children away during assembly.
- Weight Limit: Do not exceed the recommended weight capacity for a 2-person swing. Overloading can cause structural failure.
- Secure Placement: Place the swing on a flat, stable surface. Consider anchoring the swing in windy conditions to prevent tipping.
- Regular Inspection: Periodically check all bolts, nuts, and connections for tightness. Tighten as necessary.
- Weather Conditions: In severe weather (strong winds, heavy rain, snow), remove the canopy and store the swing or secure it to prevent damage.
- No Standing: Do not stand on the swing seats.
- Keep Clear: Ensure the area around the swing is clear of obstructions to allow for safe swinging motion.
3. Setup and Assembly
This swing requires assembly. All necessary tools are included. It is recommended to assemble the swing with at least two adults.
3.1 Unpacking and Parts Identification
Carefully unpack all components and lay them out on a clean, soft surface to prevent scratches. Verify that all parts listed in the packaging contents are present. If any parts are missing or damaged, do not proceed with assembly and contact customer support.

Image 2: A closer view of the Mainstays Sand Dune Outdoor Swing, highlighting the brown sling seats, black powder-coated steel frame, and beige canopy.
3.2 Assembly Steps (General Guide)
While specific step-by-step instructions are typically provided in the product's packaged manual, the general assembly process involves:
- Assemble the Base Frame: Connect the horizontal and vertical support bars to form the main base of the swing. Ensure all connections are secure but do not fully tighten bolts until the entire frame is assembled.
- Attach the A-Frames: Secure the A-frame legs to the base frame.
- Assemble the Swing Seat: Construct the 2-person sling seat according to the instructions, ensuring the fabric is taut and securely attached to the seat frame.
- Hang the Swing Seat: Carefully lift and attach the assembled swing seat to the hanging hooks on the A-frame.
- Install the Canopy Frame: Assemble the canopy support bars and attach them to the top of the main frame.
- Attach the Canopy Cover: Drape and secure the UV-protected polyester canopy cover over the canopy frame.
- Final Tightening: Once all components are in place and aligned, fully tighten all bolts and nuts using the provided tools.
- Stability Check: Gently rock the swing to ensure it is stable and all connections are firm.
4. Operation
4.1 Using the Swing
- The Mainstays Sand Dune Swing is designed for two individuals.
- Sit gently on the sling seats. Avoid sudden movements or excessive force when swinging.
- Ensure children are supervised when using the swing.
4.2 Adjusting the Canopy
The swing features an adjustable canopy to provide shade. The canopy can be tilted to various angles to block sunlight from different directions.
- Locate the adjustment knobs or levers on the sides of the canopy frame.
- Loosen the knobs/levers, adjust the canopy to the desired angle, and then tighten them securely to fix the position.

Image 3: The Mainstays Sand Dune Outdoor Swing demonstrating the adjustable canopy feature, showing the canopy tilting to provide optimal shade.
5. Care and Maintenance
- Cleaning the Frame: Wipe the powder-coated steel frame with a damp cloth and mild soap. Rinse thoroughly and dry completely to prevent rust. Avoid abrasive cleaners.
- Cleaning the Sling Seats and Canopy: The polyester fabric can be cleaned with a mild soap solution and a soft brush or sponge. Rinse thoroughly and allow to air dry completely before storage or next use.
- Hardware Check: Periodically inspect all nuts, bolts, and connections for tightness. Re-tighten as needed to ensure structural integrity.
- Seasonal Storage: During off-season or prolonged periods of non-use, it is recommended to store the swing in a dry, protected area. Remove the canopy for separate storage.
- Weather Protection: While the canopy is UV-protected, prolonged exposure to harsh weather conditions can reduce its lifespan. Consider using a protective cover when not in use.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Swing feels unstable or wobbly. | Loose bolts or uneven ground. | Check and tighten all assembly bolts. Ensure the swing is placed on a level surface. |
| Squeaking noise during swinging. | Friction at pivot points or loose connections. | Apply a small amount of silicone-based lubricant to the hanging hooks. Check and tighten all bolts. |
| Canopy does not stay in position. | Adjustment knobs are not tightened sufficiently. | Ensure the canopy adjustment knobs are fully tightened after positioning. |
7. Product Specifications
| Model Name | Sand Dune Sling Outdoor Swing, Seats 2 |
| Brand | Mainstays |
| Capacity | 2 Persons |
| Frame Material | Alloy Steel, Powder Coated |
| Seat Material | Polyester Sling Fabric |
| Canopy Material | UV-Protected Polyester |
| Color | Brown (Seats), Beige (Canopy), Black (Frame) |
| Assembly Required | Yes |
| Shipping Dimensions | 6.3"H x 67.55"L x 26.8"W |
| Shipping Weight | 30.49 lbs |
| UPC | 715007534044 |
| ASIN | B00J03B5MA |
8. Warranty and Customer Support
Mainstays products are manufactured to high-quality standards. For specific warranty information, please refer to the documentation included with your purchase or visit the official Mainstays website. If you have any questions regarding assembly, missing parts, or product operation, please contact Mainstays customer support directly.
Please retain your proof of purchase for warranty claims.
