Patra Office Chair Adjustment

The adjustment method for Patra office chairs depends on the specific model. Common adjustment methods include pneumatic and lever types. Some models, such as the #FLO series, only mention the availability of seat height adjustment but do not specify the operation method. Here are the details:

Pneumatic Adjustment
Pneumatic adjustment is the most common method for raising and lowering office chairs, typically achieved through a handle or a gas cylinder knob on the support rod. If the chair is equipped with a handle, maintain a seated position or lightly press down on the chair while lifting the handle to lower the seat height; to raise it, lift the handle and simultaneously pull up on the seat cushion. Some pneumatic office chairs use a knob design; turning the knob clockwise lowers the height, while turning it counterclockwise raises it. Ensure the chair is stable during operation to avoid sudden release of pressure causing instability.

Lever Adjustment
Lever adjustment is more commonly found in traditional office chairs and is performed using a lever beneath the seat. To raise the seat, the user should leave the chair or lift their body to reduce pressure, then pull the lever; the seat will slowly rise due to internal springs or a pneumatic device. Adjust to the desired height and release the lever to lock the position. To lower the seat, maintain a normal seated position, pull the lever, and the seat will slowly descend due to gravity; release the lever at the target height to lock it. Pay attention to the lever position during this adjustment method to avoid pinching fingers.

Model Differences
Adjustment methods may vary among different models of Patra office chairs. For example, the Korean PATRA school teacher office chair #FLO series clearly has seat height adjustment functionality, but the specific operation method is not disclosed. In such cases, refer to the product manual or contact after-sales service for accurate guidance to avoid damage to the chair or safety hazards due to incorrect operation. If the chair has multi-position adjustment functionality, confirm whether the current position is locked before adjustment; some models require unlocking before height adjustment.

Precautions
When adjusting the height of an office chair, ensure the chair is on a level surface to prevent the adjustment mechanism from getting stuck due to an inclined ground. Pneumatic office chairs require regular inspection of the gas cylinder's seal; if air leakage or uneven lifting is detected, stop using immediately and contact professional repair services. Avoid excessive force when pulling the lever on lever-type office chairs to prevent damage to the internal mechanical structure. After adjustment, test the seat's stability to ensure there is no automatic sliding after the height is fixed.