Maintenance

Machine maintenance is crucial for ensuring the proper functioning and longevity of mechanical assets in a facility. At SUNRUI MACHIEN, we offer comprehensive maintenance services to keep your equipment in optimal working condition.

SUNRUI MACHINE'S Maintenance

SUNRUI experienced maintenance team is adept at diagnosing and resolving equipment failures promptly, minimizing downtime. Regular equipment inspections are conducted to detect potential issues and implement preventive maintenance measures, extending the lifespan of your machinery.

We provide high-quality spare parts and components, ensuring that replacements are compatible with the original equipment, thus maintaining performance and reliability. By performing regular maintenance and repair work, we help reduce maintenance costs and minimize the risk of equipment breakdowns.

Our maintenance services can be customized to meet your specific needs, aligning with your equipment maintenance schedule and budget requirements.

Optimizing and refining the content in the Maintenance section of the SUNRUI MACHIEN website will effectively convey our expertise and service advantages in machine maintenance. This will attract potential customers and enhance the visibility and appeal of our website.

Professional expertise of the maintenance personnel

The purpose of this section is to provide a comprehensive and improved description of the professional skills and qualifications required for maintenance personnel on the SUNRUI MACHINE website.In order to ensure the safety of personnel and prolong the lifespan of the machine, SUNRUI MACHINE demands the following professional expertise and qualifications for maintenance personnel:

Technical Knowledge:

Maintenance personnel should possess a deep understanding of the machine’s operating principles, components, and systems. They should be familiar with the machine’s specifications, functions, and performance requirements.

Troubleshooting Skills:

Maintenance personnel should have excellent troubleshooting abilities to identify and resolve faults promptly and effectively. They should be able to analyze fault symptoms, use diagnostic tools and techniques, and apply appropriate solutions.

Mechanical and Electrical Skills:

Maintenance personnel should have a strong foundation in mechanical and electrical engineering. They should be proficient in reading technical drawings, carrying out mechanical and electrical repairs, and performing maintenance tasks accurately and efficiently.

Safety Awareness:

Maintenance personnel should prioritize safety in all maintenance activities. They should be knowledgeable about safety regulations and procedures, adhere to safety guidelines, and use personal protective equipment (PPE) as required.

Communication Skills:

Maintenance personnel should possess good communication skills to effectively communicate with colleagues, supervisors, and customers. They should be able to clearly convey technical information, report faults and repair progress, and provide guidance to machine users.

Continuous Learning:

Maintenance personnel should demonstrate a commitment to continuous learning and professional development. They should stay updated with the latest advancements in machine technology, attend relevant training programs, and actively seek opportunities to enhance their skills and knowledge.

By optimizing and improving the description of maintenance personnel’s professional skills and qualifications on the SUNRUI MACHINE website, the company aims to ensure that only qualified individuals are entrusted with the responsibility of repairing faults. This will result in reduced downtime, smooth and safe machine operations, and enhanced customer satisfaction.

Maintenance List

For Coil feed equipment

1) Maintenance list.

Maintenance Timing	Items	Content
Unscheduled maintenance	①　Outer cover of the equipments ②　Touch screen	①　Clean the cover ②　Clean the touch screen
Daily maintenance	①　the photoelectric sensors ②　the emergency stop button ③　all the switches	①　Check the photoelectric sensors ②　Check the emergency stop button ③　Check all the switches
Weekly maintenance	①　Width block roll on decoiler ②　Gears of straightener feeder ③　Width guiding rolls at the entrance ④　Expansion mandrel of decoiler	①　Check the grease on the block roll and lubricate it if neccessary. ②　Check and lubricate the gears. ③　Check and lubricate the rolls. ④　Check and lubricate the expansion mandrel.
Monthly Maintenance	①　Driving chain of decoiler ②　Tension of belt and gasholder of the straightener feeder ③　Gadholder ④　Driving chain of pressing rolls of decoiler ⑤　Bearing of decoiler ⑥　Switches of photoelectric sensors	①　Lubricate the chain and check its tension ②　Check the condition and tension of the belt ③　Exhaust water from the gasholder ④　Lubricate the chain and check its tension. ⑤　Lubricate the bearing of decoiler ⑥　Fasten the screws and clean them

2) Error code display and handling methods：

The errors can be diagnosed through the error codes displayed on touch panel.The error codes help solve corresponding errors of the equipment.

No.	Displayed Content	Corresponding Errors
1	Finish counting	It will show up when finish required feeding times which means the feeder will stop running at that time.To make it run again,bigger datas should be set or clear previous datas and reset it .
2	No material	The equipment will stop running when the material run out which will be detected by the sensor.To make it run again,loading another material is neccessary.
3	Emergency stop	The equipment will stop emergently when you press Emergency Stop Button.
4	Abnormal servo driver	The servo driver will be abnormal when the driver alarms.Check and maintenance the driver is neccessary .
5	Abnormal decoiler inverter	The decoiler inverter will be abnormal when the inverter alarms.Check and maintenance is neccessary.
6	Abnormal phase	It will alarm when the wires of three phases are misconnected or disconnected
7	The speed of press is to0 fast	It happens with wrong feeding angle or abnormal feeding start signal during feeder.Please refer it to feeding angle instructions for handling methods.
8	Motor of oil pump is overheated	The motor of oil pump may be misconnected or overloaded.
9	Lift motor is overheated	The lift motor may be misconnected or overloaded.

For Stamping Press
Possible fault symptoms and repair methods

NO	Reason of Abnormality	Method of Troubleshooting
01	Press down Emergency Stop button.	Reset Emergency Stop button.
02	Abnormal pneumatic pressure	Check if pneumatic pressure is normal.
03	Abnormal hydraulic pressure	Check if hydraulic pressure is normal.
04	Abnormal photoelectric input	Clear obstacles in front of the photoelectric detector.
05	Abnormal twin-valve detector	Check electromagnetic valve of the clutch and relay to boost the clutch.
06	Abnormal overload	Check if overload detector is normal.
07	Abnormal misdeed A2 input	Check if misdeed A2 is normal.
08	Abnormal misdeed B2 input	Check if misdeed B2 is normal.
09	Abnormal misdeed A1 input	Check if misdeed A1 is normal.
10	Abnormal misdeed B1 input	Check if misdeed B1 is normal.
11	Abnormal relay shutoff to boost clutch	Check if the relay of the clutch is broken.
12	Abnormal relay start to boost clutch	Check if the relay to boost clutch is broken.
13	Abnormal phases A, B of decoder	Check if phases A, B of decoder is normal and any broken wire.
14	Abnormal phase Z of decoder	Check if phase Z of decoder is normal and any broken wire.
15	Broken over-run limit switch	Check if over-run limit switch is normal and any broken wire.
16	Memory 1 damaged	Change the main board.
17	Memory 2 damaged	Change the main board.
18	Abnormal CPU 1	Change the main board.
19	Abnormal CPU 2	Check if the wire connecting the panel and the main board is broken. If not, change the panel. If it still fails, change the main board.
20	Abnormal maximum brake angle	Change the lining of the brake or enlarge the maximum brake angle (SE-4).
21	Exceed maximum start-up interval;Abnormal phases A, B of decoder	Check if the maximum start-up interval (SE-2) is set too little and if phases A, B of decoder are normal.
22	Safety interlock limit switch damaged	Check if the safety interlock limit switch is normal and any broken wire.
23	Abnormal over-run	Check if the over-run limit switch and decoder are normal.
24	Abnormal clutch motion	Check if decoder and relay to boost clutch are normal.
25	Abnormal pass-thru detector input	Check if material is stuck and if the pass-thru detector is normal.
26	Abnormal multi-sectional change-over switch	Check if operation mode of the multi-sectional change-over switch is normal.
27	Abnormal over-run (slip)	Calibrate the brake sliding angle of each velocity.
28	Slide adjustment	Reset the slide adjustment switch.
29	Abnormal Q.D.C.S operation	Check Q.D.C.S switch and pressure detector switch.
30	Abnormal electric grease detector	Check if the electric grease motor and the distribution valve are normal.
31	Abnormal grease volume	Check if grease for motor is sufficient.
32	Electric grease motor overload	Check if electric grease motor and lover relay are normal.

NO	Reason of Abnormality	Method of Troubleshooting
01	Press down Emergency Stop button.	Reset Emergency Stop button.
02	Abnormal pneumatic pressure	Check if pneumatic pressure is normal.
03	Abnormal hydraulic pressure	Check if hydraulic pressure is normal.
04	Abnormal photoelectric input	Clear obstacles in front of the photoelectric detector.
05	Abnormal twin-valve detector	Check electromagnetic valve of the clutch and relay to boost the clutch.
06	Abnormal overload	Check if overload detector is normal.
07	Abnormal misdeed A2 input	Check if misdeed A2 is normal.
08	Abnormal misdeed B2 input	Check if misdeed B2 is normal.
09	Abnormal misdeed A1 input	Check if misdeed A1 is normal.
10	Abnormal misdeed B1 input	Check if misdeed B1 is normal.
11	Abnormal relay shutoff to boost clutch	Check if the relay of the clutch is broken.
12	Abnormal relay start to boost clutch	Check if the relay to boost clutch is broken.
13	Abnormal phases A, B of decoder	Check if phases A, B of decoder is normal and any broken wire.
14	Abnormal phase Z of decoder	Check if phase Z of decoder is normal and any broken wire.
15	Broken over-run limit switch	Check if over-run limit switch is normal and any broken wire.
16	Memory 1 damaged	Change the main board.
17	Memory 2 damaged	Change the main board.
18	Abnormal CPU 1	Change the main board.
19	Abnormal CPU 2	Check if the wire connecting the panel and the main board is broken. If not, change the panel. If it still fails, change the main board.
20	Abnormal maximum brake angle	Change the lining of the brake or enlarge the maximum brake angle (SE-4).
21	Exceed maximum start-up interval;Abnormal phases A, B of decoder	Check if the maximum start-up interval (SE-2) is set too little and if phases A, B of decoder are normal.
22	Safety interlock limit switch damaged	Check if the safety interlock limit switch is normal and any broken wire.
23	Abnormal over-run	Check if the over-run limit switch and decoder are normal.
24	Abnormal clutch motion	Check if decoder and relay to boost clutch are normal.
25	Abnormal pass-thru detector input	Check if material is stuck and if the pass-thru detector is normal.
26	Abnormal multi-sectional change-over switch	Check if operation mode of the multi-sectional change-over switch is normal.
27	Abnormal over-run (slip)	Calibrate the brake sliding angle of each velocity.
28	Slide adjustment	Reset the slide adjustment switch.
29	Abnormal Q.D.C.S operation	Check Q.D.C.S switch and pressure detector switch.
30	Abnormal electric grease detector	Check if the electric grease motor and the distribution valve are normal.
31	Abnormal grease volume	Check if grease for motor is sufficient.
32	Electric grease motor overload	Check if electric grease motor and lover relay are normal.

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