This factory side door in Beitun, Taichung is about 3.8 m high. Based on weight and use, we specified the GP500, then completed bracket mounting, limit setup, and a power-on test.
The video covers removal of the old unit, positioning the new motor, chain/gear alignment, and the final travel test. Factory side doors often collect dust and have a long stroke — check limits and lubrication on a regular schedule.
If the curtain is taller or heavier than expected, confirm max load and step up to GP700 or above rather than running overloaded.
