In the daily production of Manroland (Roland) series presses, the chain lubrication system is one of the most frequently encountered issues for press operators and maintenance personnel. These German-built machines feature large cylinder diameters and high printing pressure, making them suitable for heavy stock and packaging printing, with durable gripper mechanisms. If the problem is not addressed in time, it can at best affect registration accuracy and print quality, and at worst cause extended downtime.
1. Fault Symptoms: Abnormal noise from the main drive chain, chain jumping, elongation, automatic lubrication alarms, and excessively high oil temperature.
2. Cause Analysis: Blocked lubrication oil passages, degraded oil quality, insufficient pressure from the automatic lubrication pump, improper chain tensioning, and misaligned oil-mist lubrication nozzles. Given the characteristics of Manroland German-built machines—large cylinder diameters, high printing pressure, suitability for heavy stock and packaging printing, and durable gripper mechanisms—priority should be given to checking key components and standard parameters during troubleshooting.
3. Parts Replacement: Clean the oil passages, replace with qualified lubricating oil, verify the lubrication pump pressure and cycle, adjust chain tension, and correct nozzle positions.
4. List of Wear-Prone Parts: For the chain lubrication system, it is recommended to keep the following in stock: relevant bearings/bushings, Manroland-corresponding sensors and suction nozzles, seals, and standard wear rollers. When replacing, always use original or certified parts and verify model numbers.
5. Preventive Measures: Change oil at scheduled intervals, monitor oil temperature and pressure, and perform regular tension checks. The above methods also apply to models such as the R700, R900, ROLAND 700, and R505. For actual operation, refer to the RCI remote ink control system / CCI console and on-site conditions. In complex situations, it is recommended to contact professional maintenance support through the printm.cn platform.
