Changle Office Chair Installation

The installation of office chairs in Changle can refer to the common installation steps for five-star-base office chairs, as detailed below:

I. Prepare Tools
Before installation, prepare a screwdriver to tighten the screws at the connections of various components. Some screws may require a Phillips or flat-head screwdriver, so it is recommended to confirm the screw type in advance and prepare the corresponding tool.

II. Inventory Components
Common components include casters, five-claw (five-star base), gas lift, base plate, seat, armrests, backrest, and headrest, etc. Check the quantity of each component one by one to ensure there are no missing or damaged parts. For example, the five-star base usually has five caster insertion holes, the gas lift should be checked for a protective cap, and the base plate should be checked for a complete adjustment lever.

III. Installation Steps

1. Install Casters
   Insert the casters into the holes of the five-star base, pressing slightly while inserting. Some casters may need to be screwed in by rotating. For swivel casters, they can be directly snapped into the slots of the five-star base, ensuring the casters rotate flexibly and are not loose.

2. Install Gas Lift
   Flip the five-star base with the casters installed so that the casters face downward. Remove the protective cap from the top of the gas lift and vertically insert the gas lift into the central hole of the five-star base, ensuring it fits snugly without tilting or wobbling.

3. Install Base Plate
   Place the seat (cushion) flat on a clean surface to avoid scratching. Confirm the direction according to the instructions or markings on the base plate, align the base plate with the seat, and tighten the connecting screws with a screwdriver. Some base plates require the installation of adjustment levers (such as for height adjustment and reclining functions), which should be fixed in the direction indicated in the diagram.

4. Install Gas Lift and Seat
   Lift the seat with the base plate installed, align it with the top of the gas lift, and slowly lower it so that the hole at the bottom of the seat is fully inserted onto the gas lift. Gently press down on the seat to test its stability, ensuring there is no wobbling.

5. Install Armrests
   Align the armrests with the installation holes on both sides of the seat, paying attention to distinguishing between left and right armrests (some armrests have front and back directional markings). Initially tighten the screws but do not fully secure them to allow for subsequent adjustment of the backrest position.

6. Install Backrest
   Place the backrest on the seat and align the connection holes of the armrests and backrest. First, install the screws on both sides at the bottom of the backrest (temporarily do not tighten them), then lift the backrest and install the top screws. Adjust the angle of the backrest and then tighten all the screws to ensure the backrest is firmly connected to the armrests.

7. Final Touches
   Check that all screws are tightened and install armrest decorative caps (if any). Some office chairs require snapping on black decorative buttons or diamond-shaped decorative panels at the back of the backrest to complete the final assembly.

IV. Precautions

• Avoid applying excessive force during installation to prevent screw stripping or component damage.
• If the gas lift does not move up and down smoothly, check if it is inserted properly or if a small amount of lubricant is needed.
• After installation, gently shake the office chair to test the stability of each component, ensuring there are no unusual noises or looseness.