Mazak Computer Numerical Control Machine QTN 450 M

CAUTION: Warm up the machine, especially the spindle and feed shaft, by running the machine for 10 to 20 minutes at about one-half or one-third the maximum speed in the automatic operation mode.

Did the automatic operation program cause each machine component to operate?

Did you check the operations of each machine component?

Be particularly careful to warm up the spindle which can turn above 4000 rpm. If the machine is used for actual machining immediately after being started up following a long idle period, the sliding parts may be worn due to the lack of oil.

Also, thermal expansion of the machine components can jeopardize machining accuracy. To prevent this condition, always make sure that the machine is warmed up.

Sign off on the machine warm-up

Check the coolant for contamination

Check the hydraulic oils for contamination

Check the lubricants for contamination

Change the coolant if seriously contaminated

Change the hydraulic oils if seriously contaminated

Change the lubricants if seriously contaminated

WARNING: When checking belt tensions, do not get your fingers caught between the belt and pulley.

Check pressure gages for proper readings.

Check motors, gear boxes and other parts for abnormal noises.

Check the motor lubrication, and sliding parts for evidence of proper lubrication.

Check safety covers and safety devices for proper operation.

Check belt tensions. Replace any set of belts that have become stretched with a fresh matching set.

Sign off on the machine inspection