Evenflo HC100122529
Evenflo RightSeat Multistage High Chair Instruction Manual
Model: HC100122529
Introduction
The Evenflo RightSeat Multistage High Chair is designed to provide a comfortable and secure feeding solution that adapts as your child grows. This manual provides essential information for the safe and proper use, assembly, and maintenance of your high chair.
Key Features
- Ergonomic Design: Allows for proper posture with hips, knees, and ankles positioned at a 90° angle.
- Extended Use: Transitions through Infant Mode, Toddler Mode, and Youth Mode, supporting children up to 100 lbs (45.4 kg).
- Easy Assembly: Assembles in 3 steps without requiring extra tools.
- Simple Cleaning: Features wipeable surfaces and a removable, dishwasher-safe (top rack only) BPA-free tray.
- Child Security: Equipped with a 5-point harness for safety during mealtimes.
- Modern Aesthetic: Designed with wood-like accents to complement home décor.
Modes of Use
The Evenflo RightSeat Multistage High Chair offers three distinct modes to accommodate your child's growth:
- Infant Mode: For children approximately 6 months old who can sit upright unassisted, up to 40 lbs (18.1 kg). In this mode, the child sits with the tray attached, providing their own eating space.

Image: Evenflo RightSeat Multistage High Chair in Infant Mode, showing a baby seated with the tray attached. - Toddler Mode: For children approximately 6 months old who can sit upright unassisted, up to 40 lbs (18.1 kg). In this mode, the tray is removed, allowing the child to be positioned directly at the family table.

Image: Evenflo RightSeat Multistage High Chair in Toddler Mode, showing a child seated at a table without the tray. - Youth Mode: For children who are able to walk unassisted, up to 100 lbs (45.4 kg). In this mode, the seat insert is removed, converting the high chair into a youth chair that can be used at a standard table.

Image: Evenflo RightSeat Multistage High Chair configured for Youth Mode, showing the chair without the infant seat insert.
Setup
The Evenflo RightSeat Multistage High Chair is designed for quick and easy assembly, requiring no extra tools.
- Unpack all components from the box.
- Connect the main frame components as indicated in the included quick-start guide.
- Attach the seat and footrest, ensuring they click securely into place.
- For Infant or Toddler Mode, attach the seat insert and tray (if applicable).

For detailed visual instructions, please refer to the official product overview video below.
Video: Official product overview demonstrating the assembly and features of the Evenflo RightSeat Multistage High Chair.
Operating Instructions
Adjusting Seat and Footrest
The high chair features four adjustable positions for both the seat and the footrest to ensure ergonomic comfort and proper posture for your child as they grow. No tools are required for these adjustments.
- Locate the adjustment knobs on the sides of the chair for the seat and footrest.
- Press and hold the knobs to release the locking mechanism.
- Slide the seat or footrest to the desired height.
- Release the knobs, ensuring the seat/footrest locks securely into one of the four positions.

Using the 5-Point Harness
Always secure your child with the 5-point harness when they are seated in the high chair to prevent falls and ensure safety.
- Place your child in the seat.
- Bring the shoulder straps over your child's shoulders and connect them to the waist straps.
- Insert the two buckle prongs into the crotch buckle until they click securely.
- Adjust the straps to fit snugly around your child without being too tight.

Attaching and Removing the Tray
The BPA-free tray easily attaches and detaches for convenience.
- To attach: Align the tray with the armrests and push down until it clicks into place.
- To remove: Locate the release levers (usually on the underside or sides of the tray) and pull them to detach the tray.

Maintenance and Cleaning
Regular cleaning ensures hygiene and extends the life of your high chair. Always refer to the product labels for specific care instructions.
- Metal and Plastic Parts: Wipe clean with mild soap and warm water.
- Tray: Wash with mild soap and warm water. The tray is dishwasher safe (top rack only).
- Seat Pad: The seat pad is 100% Polyester and machine washable.
- Harness: Wash by hand in cool water. Allow to air dry completely.

Troubleshooting
If you encounter any issues with your Evenflo RightSeat Multistage High Chair, please refer to the following common solutions:
- Difficulty Adjusting Seat/Footrest: Ensure the adjustment knobs are fully pressed in before attempting to slide the components. Check for any obstructions.
- Tray Not Attaching Securely: Verify that the tray is correctly aligned with the armrests and push firmly until you hear a click. Inspect for debris in the attachment points.
- Harness Issues: Ensure all buckle prongs are fully inserted into the crotch buckle. Check straps for twists or damage.
For further assistance, please contact Evenflo customer support.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 25"D x 18.58"W x 31.89"H (63.5 x 47.19 x 81 cm) |
| Item Model Number | HC100122529 |
| Maximum Weight Recommendation | 100 Pounds (45.4 kg) |
| Material Type | Plastic, Stainless Steel |
| Material Composition | 50% PP, 45% Steel, 5% Polyester |
| Item Weight | 17 Pounds (7.7 kg) |
| Color | Sage Green |
| Is Portable | No |
| Batteries Required | No |

Warranty and Support
For information regarding product warranty, returns, or to contact customer support, please visit the official Evenflo website or refer to the warranty card included with your purchase. Evenflo is committed to providing quality products and support.
You can find more information and support at the Evenflo Store on Amazon.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.


