Introduction
Thank you for choosing the Greenlife Ninja Advance Hydraulic Barber Chair. This manual provides essential information for the safe and efficient assembly, operation, and maintenance of your new barber chair. Please read these instructions thoroughly before use and retain them for future reference.

Image 1: Front view of the Greenlife Ninja Advance Hydraulic Barber Chair, showcasing its diamond pattern upholstery and chrome accents.
Safety Information
To ensure safe operation and prevent injury or damage, please observe the following safety precautions:
- Always ensure the chair is placed on a stable, level surface.
- Do not exceed the maximum weight capacity of 500 lbs (226.8 kg).
- Keep hands and feet clear of moving parts during adjustment.
- Supervise children and individuals requiring assistance around the chair.
- Regularly inspect all components for wear, damage, or loose connections.
- Do not attempt to modify the chair's design or components.
Package Contents
Before beginning assembly, verify that all parts are present and undamaged. If any parts are missing or damaged, do not proceed with assembly and contact customer support.
- Chair Seat and Backrest Assembly
- Hydraulic Pump and Base
- Footrest Assembly
- Armrests
- Headrest
- Pump Cover
- Hardware Kit (bolts, washers, tools)
Setup and Assembly
Assembly is required for this product. It is recommended that two people assemble the chair to ensure safety and ease of installation. Please follow these general steps:
- Unpack Components: Carefully remove all parts from the packaging and lay them out on a clean, soft surface to prevent scratches.
- Assemble the Base: Attach the hydraulic pump to the chair base, ensuring it is securely fastened. Place the pump cover over the hydraulic pump.
- Attach Footrest: Secure the footrest assembly to the main chair frame using the provided hardware.
- Mount Seat to Base: Carefully lift the seat and backrest assembly and align it with the top of the hydraulic pump. Secure it firmly.
- Install Armrests: Attach the armrests to the sides of the chair using the designated mounting points and hardware.
- Insert Headrest: Slide the headrest into its receptacle at the top of the backrest.
- Final Check: Verify that all bolts are tightened and all components are securely in place before initial use.

Image 2: Side view of the Greenlife Ninja Advance Hydraulic Barber Chair, highlighting the recline mechanism and footrest.
Operating Instructions
The Greenlife Ninja Advance Hydraulic Barber Chair offers several adjustable features for optimal client comfort and barber convenience.
- Height Adjustment: To raise the chair, repeatedly press the foot pedal located at the base. To lower the chair, press and hold the foot pedal down. The hydraulic lift system allows for smooth height adjustments.
- 360° Swivel: The chair can rotate a full 360 degrees. Simply push or pull the chair to rotate it to the desired position.
- Reclining Backrest: To recline the backrest, locate the lever on the side of the chair (typically on the right when seated). Pull the lever to release the lock and adjust the backrest to the desired angle. Release the lever to lock the backrest in place. Ensure the client is properly supported during this adjustment.
- Adjustable Headrest: The headrest can be adjusted vertically to accommodate different client heights. Pull it up or push it down to the desired position.
- Footrest: The footrest provides support for the client's feet. It is fixed in position to ensure stability.
Maintenance
Regular maintenance will prolong the life and appearance of your barber chair.
- Cleaning Upholstery: Wipe the upholstery with a soft, damp cloth and mild soap. Avoid harsh chemicals or abrasive cleaners that may damage the material. Dry thoroughly.
- Cleaning Metal Parts: Clean stainless steel and chrome parts with a soft cloth and a non-abrasive cleaner designed for metal surfaces.
- Hydraulic System: Periodically check the hydraulic pump for leaks. If a leak is detected, contact support immediately.
- Tighten Fasteners: Every few months, check all bolts and screws and tighten them as necessary to ensure stability.
- Lubrication: Moving parts, such as the recline mechanism, may benefit from occasional lubrication with a silicone-based spray to ensure smooth operation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not lift or lower smoothly. | Low hydraulic fluid, air in the system, or damaged pump. | Ensure the foot pedal is fully depressed. If issues persist, contact customer support for professional service. |
| Chair wobbles or feels unstable. | Loose fasteners, uneven floor, or damaged base. | Check and tighten all assembly bolts. Ensure the chair is on a level surface. Inspect the base for damage. |
| Backrest does not recline or lock. | Recline mechanism jammed or damaged, or lever not fully engaged. | Ensure the recline lever is fully pulled or released. Check for obstructions. Apply lubrication if stiff. If still problematic, contact support. |
| Squeaking noises during operation. | Lack of lubrication in moving parts or loose connections. | Apply a silicone-based lubricant to moving joints and pivot points. Tighten any loose fasteners. |
Specifications
| Brand | GreenLife |
| Model Name | Ninja Advance Hydraulic Barber Chair |
| Model Number | 121247 |
| Color | Black |
| Material | Stainless Steel (frame/base), Upholstery (seat/back) |
| Product Dimensions (D x W x H) | 19.09"D x 27.16"W x 41.33"H |
| Item Weight | 67.99 Kilograms (approx. 150 lbs) |
| Maximum Weight Recommendation | 500 Pounds (226.8 kg) |
| Additional Features | 360° swivel, Adjustable Backrest, Adjustable Height, Foot Rest |
| Required Assembly | Yes |
Warranty and Support
Warranty Information: Greenlife provides an industry-leading 2-year warranty against manufacturing defects. This warranty covers defects in materials and workmanship under normal use.
Customer Support: For any problems, questions, or warranty claims, please do not hesitate to contact Greenlife customer support. Refer to your purchase documentation or the Greenlife official website for the most current contact information.
Manufacturer Contact Information: While specific contact details are not provided in this manual, please refer to the seller or manufacturer's official channels for assistance.