Hni Autotech Interview Questions and Answers

Motor coil condition can be checked by measuring the resistance and insulation resistance.

• Measure the resistance of each coil using a multimeter.

• Compare the measured resistance with the manufacturer's specifications.

• Measure the insulation resistance between the coil and the motor frame using a megohmmeter.

• Check for any signs of physical damage or wear on the coils.

• Perform a visual inspection of the motor windings for a...read more

The procedure for spindle dismandle involves several steps to ensure safety and proper disassembly.

• Disconnect power supply and lockout/tagout equipment

• Remove any attachments or accessories from the spindle

• Remove the spindle from the machine using appropriate tools

• Disassemble the spindle by removing the retaining nut, bearings, and other components

• Inspect all components for wear or damage and replace as necessary

• Clean a...read more

To check lube oil flow in guideways, use flow meters or pressure gauges.

• Install flow meters or pressure gauges in the lube oil system

• Monitor the readings to ensure proper flow rate

• Check for any abnormalities or fluctuations in the readings

• Perform regular maintenance and cleaning of the flow meters or pressure gauges

• Consult the manufacturer's guidelines for recommended flow rates and maintenance procedures

The procedure to change a drive involves several steps to ensure safety and proper installation.

• Disconnect power supply to the drive

• Remove the old drive and disconnect all cables

• Install the new drive and connect all cables

• Configure the new drive settings

• Test the new drive to ensure proper operation

Spindle drive alarm is a warning system that indicates a problem with the spindle drive.

• Alarm number 300 is related to spindle drive overload

• Remedy for this alarm is to reduce the load on the spindle drive

• Alarm number 301 is related to spindle drive overheat

• Remedy for this alarm is to check the cooling system and reduce the load on the spindle drive

• Alarm number 302 is related to spindle drive communication error

• Remedy ...read more

Major CNC breakdowns include electrical, mechanical, and software issues. Preventive maintenance includes regular cleaning and lubrication.

• Electrical breakdowns can be caused by power surges or faulty wiring.

• Mechanical breakdowns can be caused by worn out parts or improper alignment.

• Software breakdowns can be caused by bugs or outdated programs.

• Preventive maintenance includes regular cleaning of the machine and lubrica...read more