The OA chair is assembly type and consists of parts such as leg frame, caster, seat bracket, and gas cylinder.
This guide explains how to safely assemble the Sanwa 100‑SNC023 office chair. It includes a parts list, safety precautions, and detailed instructions for attaching the leg frame, casters, gas cylinder, seat, backrest, and arm pads. The manual also provides adjustment tips and maintenance recommendations.
The chair measures 700 mm wide, 730 mm deep, and 1080‑1180 mm high with a seat height of 450‑550 mm. Components are made from plywood, urethane foam, nylon, and PU leather. Regular bolt tightening every two months is advised to ensure safety. This manual is written in Japanese.
| Overall Width | 700 mm |
|---|---|
| Overall Height | 1080‑1180 mm |
| Seat Height Range | 450‑550 mm |
| Seat/Backrest Material | Plywood, Urethane Foam |
The manual lists five M6×20 bolts for the leg frame.
Bolts and screws should be retightened every two months.
Turn the knob clockwise to lock the seat height and counter‑clockwise to loosen it.
Wear protective gloves while assembling to prevent injuries.