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What is the procedure for cleaning the spindle lubricating unit filters?
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To clean the spindle lubricating unit filters, take out the filter from the oil filler port and clean it by supplying compressed air from the inside of the filter using a hand-held air nozzle.
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What precautions should be taken when greasing and cleaning the ATC door guide?
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Shut off the power before greasing or cleaning the ATC door, and use only the oil specified by Yamazaki Mazak to avoid machine trouble and other problems.
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What is the purpose of replenishing grease in the ATC door cylinder?
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Replenishing grease in the ATC door cylinder is necessary to ensure smooth operation and prevent machine failure.
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Why is it important to check and clean the ATC door guide regularly?
|
Regular cleaning and greasing of the ATC door guide are essential to prevent abnormal noise, machine trouble, and hindered normal machine operation.
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What should be done if damage is found on the hoses at the rear of the machine?
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If damage is found on the hoses at the rear of the machine, contact the nearest Mazak Technical Center or Technology Center for assistance.
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Why is it necessary to check the mounting bolts of the ATC door guide?
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Checking the mounting bolts of the ATC door guide is necessary to ensure they are not loose, which could cause machine trouble and other problems.
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What is the first step in changing the oil in the spindle lubricating unit?
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Switch off the power.
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How often should the Z-axis cable guide be checked?
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Check the Z-axis cable guide in the first three years and every year thereafter.
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What should be done before applying rust preventive oil to the machine?
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Switch off the power.
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What is the capacity of the grease cartridge for slideway lubricating grease?
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400 cm³ (24.41 in³)
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What should be done if air enters the pipe while cleaning the spindle lubricating unit filters?
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Air will cause spindle trouble. Do not disconnect the pipes.
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What is the procedure for replenishing slideway lubricating grease?
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Replace the grease cartridge with a new one of the specified brand. Do not replenish grease to the cartridge as it may cause machine trouble.
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Why is it necessary to apply rust preventive oil to certain parts of the machine before stopping it for a long time?
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Unpainted surfaces of parts such as linear guide rails, ball screws, way covers, pallet, table, pallet changer, and spindle will rust and deteriorate if not operated for a long time, affecting their function.
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What should be done before restarting the machine after it has been stopped for longer than two weeks?
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Carry out the inspection and maintenance tasks listed in 4.11, including wiping off rust preventive oil, replenishing coolant, usual inspection before starting the operation, inspecting the machine for oil leaks, warm-up operation, inspecting the machine for noise, vibration, and abnormal temperature rise, and uploading the NC data.
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How long should the machine be run using the warm-up program (PNO. 6000) before starting normal operation?
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Run the machine for approximately three hours.
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What should be done if any abnormality is found during the warm-up operation?
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Take appropriate corrective action by referring to Chapter 5 'MAINTENANCE OF MAJOR UNITS'.
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What should be done if the tool has come into contact with the workpiece or other sections?
|
Check the tool, the workpiece, etc. and reset the emergency stop button.
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How many points should be checked when the source of the trouble cannot be located?
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12 points, including alarm history, ambient temperature, power failure, supply voltage, and others.
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What is displayed on the GRAPHIC MAINTENANCE screen when a PC-related alarm occurs?
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The parts name where the alarm has occurred is displayed in reverse status on a layout diagram of the corresponding section.
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What is the purpose of the DIAGNOSIS(USER) screen?
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To check the whole alarm history.
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What should be done if the machine is not damaged after an alarm?
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Machine a test piece(s) and check for normal machining and for sufficient accuracy.
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If the spindle stops due to an alarm, what should be checked?
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External power supply, ambient temperature, load, and spindle drive unit or motor.
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What is the corrective action if the spindle drive unit is defective?
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Contact the nearest Mazak Technical Center or Technology Center.
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What should you do if the spindle is rotating at high speed with an unbalanced tool mounted in it?
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Change the tool with a balanced tool.
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What could be the cause of abnormal noise or vibration during spindle rotation?
|
The spindle drive unit or motor could be defective, or there could be loose bolts.
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What should you do if tool clamp or unclamp operation is not completed?
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Check the sensor, hydraulic valve, clamp/unclamp cylinder, and hydraulic unit for possible defects or blockages.
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What could cause oil leakage in the clamp/unclamp cylinder?
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The seal in the clamp/unclamp cylinder may have worn out.
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What should you do if the ATC air blast is not supplied or does not stop?
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Check if an external air source is connected and if the solenoid valve is defective.
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How does the spindlehead construct?
|
The spindlehead consists of oil-air pressure sensor, tool clamp/unclamp valve, tool clamp, and tool unclamp sensor.
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What is the purpose of the pressure switch in the spindle?
|
The pressure switch prevents lubrication failure problems even if air pressure is lowered.
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What could cause inaccurate osltloning?
|
Loose bolts of axis drive parts or a defective encoder in the servomotor could cause inaccurate osltloning.
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What should you do if zero-point position is not fixed or the limit switch does not function correctly?
|
Check if the bolts fixing the zero-point return proximity sensor or zero-point dog are loose, or if the zero point sensor is defective.
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What could cause an axis to stop due to alarm?
|
Excessive load, high ambient temperature, or defects in the servo control unit or servomotor could cause an axis to stop due to alarm.
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What should you do if abnormal noise is generated during axis movement?
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Consult the nearest Mazak Technical Center or Technology Center for assistance.
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What is the corrective action if the wiper at the way cover is damaged?
|
Change the wiper.
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What would you do if abnormal noise is generated during axis movement and the waycover is defective?
|
Contact the nearest Mazak Technical Center or Technology Center.
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What is responsible for driving the Z-axis in the axis drive system?
|
The Z-axis drive AC servomotor is responsible for driving the Z-axis.
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What is the function of the encoder in the axis drive system?
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The encoder is used to track the position and movement of the axes.
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What would you do if the ATC cover open/close operation does not complete due to a defective sensor?
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Change the sensor or adjust its position.
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Why would a tool exceeding the tool size specifications cause the magazine to not rotate?
|
A tool exceeding the tool size specifications can cause the magazine to not rotate because it obstructs the magazine's movement.
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What is the corrective action if the magazine lock pin sensor is defective or not mounted correctly?
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Change the sensor or adjust its position.
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Why is it important to adjust the magazine chain tension?
|
Magazine chain tension needs to be adjusted to prevent the chain from elongating, which can cause issues with the magazine's operation.
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What would you do if the magazine shifter does not operate due to a defective air valve?
|
Contact the nearest Mazak Technical Center or Technology Center.
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What is the probable cause of the magazine shifter not operating in an 80/120/160-tool magazine?
|
The magazine shifter motor with the reducer is defective or the magazine shifter is defective or the sensors and/or limit switches are defective, or they are not mounted correctly.
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What should be done if the ATC standby pocket does not operate in an 80/120/160-tool magazine?
|
Check if the sensor is defective or not mounted correctly, or if the ATC standby pocket is defective, or if the air valve is defective, or if air is not supplied to the air valve.
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What is the corrective action for a defective drive motor in an ATC unit?
|
Contact the nearest Mazak Technical Center or Technology Center.
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What could be the problem if the table does not rotate or is not indexed correctly?
|
The pressure switch is defective, or the solenoid valve is defective or blocked, or the hydraulic cylinder is defective, or the hydraulic unit is defective.
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What type of sensor is used in the ATC door open confirmation sensor?
|
A proximity sensor of type FL7M-3K6H-CN made by Azbil.
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What is the probable cause of pallet clamp operation not being completed?
|
The pressure switch is defective, or the solenoid valve is defective or blocked, or the hydraulic cylinder is defective, or the hydraulic unit is defective.
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How can you troubleshoot ATC operation interruption due to alarm (Alarm No. 390, 396, 304)?
|
Check if the ATC unit is defective or if the spindle clamp/unclamp mechanism is defective.
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What is the part name of the proximity sensor used in the ATC magazine construction?
|
Arm swing start sensor ATC door open confirmation sensor.
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What should be done if the Pailet clamp operation is not completed?
|
Remove the object hindering table rotation.
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What could be the cause of the table not rotating during Pailet clamp operation?
|
An interfering object, a defective table rotation motor, a trouble in the table, or loose bolts.
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If the Pallet correct clamp detection air blast is not supplied, what could be the cause?
|
A defective solenoid valve or a blocked air discharge port.
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How can an oil leak in the pallet clamp/unclamp cylinder be addressed?
|
Contact the nearest Mazak Technical Center or Technology Center.
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What should be done if the Pallet positioning accuracy deviates?
|
Contact the nearest Mazak Technical Center or Technology Center to inspect the encoder in the servomotor and loose bolts.
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What could be the cause of zero-point return operation not being executed correctly?
|
A defective encoder in the servomotor.
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What should be done if vibration is excessively large during pallet change cycle?
|
Mount workpieces according to the instructions in the OPERATING MANUAL, as pallet load may exceed the allowable limit.
|
What could be the cause of pallet change operation not starting even when a pallet change command is specified?
|
An interfering object, a defective home position return sensor, a defective pallet changer unit, a defective pallet changer drive motor or its drive unit, or incorrect pallet changer unit positioning.
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How can a defective home position return sensor be addressed?
|
Change the sensor or adjust its position as per the instructions in 5-13-3 7-1-2.
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Who should be contacted if the pallet changer unit is defective?
|
The nearest Mazak Technical Center or Technology Center.
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What should you do if the pallet change operation does not start even when a pallet change command is specified?
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Check for loose bolts, insufficient capacity of external air source, defective home position return sensor, defective solenoid valve, or defective air cylinder, and contact the nearest Mazak Technical Center or Technology Center if necessary.
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What is the first step to troubleshoot if the setup pin cannot be retracted?
|
Check if the external air source capacity is sufficient and prepare a new air source meeting the specified requirements if necessary.
|
What could be the cause of the pallet change operation stopping halfway?
|
Loose bolts, insufficient capacity of external air source, defective home position return sensor, defective solenoid valve, or defective air cylinder could be the cause.
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How do you troubleshoot if the hydraulic pressure is always lower than 7 MPa (1000 psi)?
|
Check the oil amount in the hydraulic unit tank, the hydraulic unit filter for clogging, oil viscosity, hydraulic unit pump or motor for defects, relief valve for defects, and look for oil leaks in the hydraulic circuit.
|
What should you do if the hydraulic unit pump or motor is defective?
|
Contact the nearest Mazak Technical Center or Technology Center.
|
What is the probable cause of abnormal noise generation in the hydraulic system?
|
The probable cause could be oil leak in the hydraulic circuit, defective hydraulic unit pump or motor, or defective relief valve.
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What should you do if the hydraulic unit filter is clogged?
|
Clean the filter.
|
What is the probable cause if the oil amount in the hydraulic unit tank reduces?
|
There is oil leak in the hydraulic unit circuit.
|
What is the safety precaution to observe while maintaining the hydraulic unit?
|
Shut off the power to the machine before maintaining the hydraulic unit, failure to observe this could cause operator's injuries or severe machine troubles.
|
What is the procedure to change the hydraulic pressure gauge?
|
Shut off the power to the machine, remove the cover, loosen and detach the pressure gauge, and mount the new pressure gauge after winding the threads with sealing tape.
|
What is the part name of code 001T in the hydraulic unit?
|
Hydraulic unit.
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What is the probable cause if the pressure is lower than 0.5 MPa (70 psi) in the pneumatic system?
|
Insufficient capacity of external air source, reducing valve in the air unit is defective, mist separator in the air unit is clogged, leak in the pneumatic circuit, or air pressure switch is defective.
|
What is the corrective action if the mist separator in the air unit is clogged?
|
Change the filter element.
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Why is it necessary to shut off the power to the machine and disconnect the external air source before changing the filter element of mist separator?
|
Attempting to change the filter element without taking these precautions could cause machine damage or severe injuries.
|
How often should the filter element of mist separator be changed?
|
The filter element should be changed every two years.
|
What does 'element ass'y' indicate in the list of wearable parts?
|
A set of filter element, O ring, and gasket.
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What is the function of the part with code G50SV010370?
|
The part with code G50SV010370 is a solenoid valve, which is used for air source.
|
What is the purpose of the cylinder with part number CDQ2B80-30DM-A73L?
|
The cylinder with part number CDQ2B80-30DM-A73L is used for the 2-pallet changer lock pin extend function.
|
What type of valve is part number VXD2130-03-5D-B?
|
Part number VXD2130-03-5D-B is a solenoid valve.
|
What is the maker of the part with code G50SVO08790?
|
The maker of the part with code G50SVO08790 is SMC.
|
What is the function of the part with code G54SVO01480?
|
The part with code G54SVO01480 is a speed controller, which is used for air blow.
|
What type of sensor is part number FL7M3JGH-CN?
|
Part number FL7M3JGH-CN is a proximity sensor.
|
What type of valve is part number VCA31-5D-4-02?
|
Part number VCA31-5D-4-02 is a solenoid valve.
|
What is the maker of the part with code G73ZZO00080?
|
The maker of the part with code G73ZZO00080 is PISCO.
|
What type of generator is part number VUH05-016A?
|
Part number VUH05-016A is a vacuum generator.
|
What is the probable cause of Alarm 209 SLIDEWAY OIL MALFUNCTION?
|
The probable causes are: 1. Grease is used up so that the grease cartridge is emptied, 2. Entry of air into grease cartridge, or 3. Piping is blocked.
|
Why is it important to store a spare grease cartridge?
|
Otherwise, machine operation may be disabled.
|
Where can you find information on centralized lubrication unit maintenance?
|
Refer to sections 4-5 'Monthly Inspection and Maintenance' and 4-8 'Every One-Year Inspection and Maintenance'.
|
What should you do if the spindle cooling fluid is consumed abnormally quickly?
|
Contact the nearest Mazak Technical Center or Technology Center due to a probable leak in the spindle cooling circuit.
|
What is the corrective action for Alarm 206 SPINDLE LUB. CHILLER MALF. due to insufficient amount of spindle cooling fluid?
|
Replenish the specified spindle cooling fluid.
|
What should you do if the air filter is blocked in the spindle cooling unit?
|
Wash the air filter. After washing the air filter, press the reset button in the relay box of the chiller unit.
|
Why is it important to ensure the chiller unit is not directly subjected to hot air?
|
To ensure the chiller unit operates within the specified operating temperature range.
|
What is the probable cause of abnormal noise generated by the spindle cooling unit?
|
A clogged filter.
|
What is the corrective action for abnormal noise generated by the spindle cooling unit due to a clogged filter?
|
Clean the filter.
|
What is the probable cause of abnormal noise generation in a CNC machine?
|
Insufficient amount of spindle cooling fluid, loose bolts, hydraulic unit pump or motor defect, or chiller defect.
|
What should you do if the alarm message '206 SPINDLE LUB. CHILLER MALF.' is displayed on the CNC machine?
|
Check for insufficient spindle cooling fluid, high oil viscosity, leak in the spindle cooling circuit, chiller defect, air filter blockage, or ambient temperature being out of range, and take corrective actions accordingly.
|
How do you troubleshoot the issue of spindle cooling fluid being consumed abnormally quickly?
|
Check for a leak in the spindle cooling circuit and contact the nearest Mazak Technical Center or Technology Center.
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What is the corrective action for a clogged filter in a CNC machine's spindle cooling system?
|
Clean the filter.
|
Why is it important to replenish the specified spindle cooling fluid in a CNC machine?
|
To prevent abnormal noise generation, ensure proper cooling of the spindle, and prevent overheating.
|
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