In daily production on Akiyama series presses, the main motor drive is one of the most common issues encountered by press operators and maintenance personnel. These Japanese-built machines feature a compact structure and high cost-performance ratio, with a distinctive cylinder arrangement. During maintenance, attention must be paid to the clearance of the bridge gears; if not addressed in a timely manner, this can at best affect registration accuracy and print quality, and at worst result in extended downtime.
I. Fault Symptoms: Difficulty starting the main motor, unstable speed, abnormal noise, clutch or brake slippage, and abnormal energy consumption.
II. Cause Analysis: Worn carbon brushes on the main motor, damaged bearings, worn clutch/brake linings, damaged reduction gearbox gears, and loose drive belts. Given the compact structure, high cost-performance ratio, distinctive cylinder arrangement, and the need to check bridge gear clearance during maintenance on these Akiyama Japanese machines, priority should be given to verifying key components and standard parameters during troubleshooting.
III. Handling Steps: Measure motor current and vibration; replace carbon brushes and bearings; adjust or replace clutch and brake linings; open and inspect the reduction gearbox and change the oil; tension or replace the drive belts.
IV. Preventive Measures: Monitor motor temperature rise; perform regular oil changes on the reduction gearbox; check brake clearance. The above methods also apply to models such as the Bestech 428, Bestech 629, and Jprint. For practical operations, refer to the Akiyama digital console / automatic plate-changing system and on-site conditions. In complex situations, it is recommended to contact professional maintenance support through the printm.cn platform.
