Mazak Vertical Machining Center VTC-200

Warning: This maintenance check requires trained personnel with PPE!

If machine trouble occurred, first check the following items and carry out inspection and maintenance according to the information described

Call the DIAGNOSIS (ALARM) screen and confirm the past alarms in addition to the latest alarm

Check the trouble and alarm if it recurs

Check the ambient temperature if it is within the specified range

Check if momentary power failure has occurred

Check the source voltage for fluctuation

Check if conditions differ depending on motion direction

CAUTION: Shut off the power before changing the hydraulic oil. Use only the oil specified by Yamazaki Mazak.

Switch off the power by placing the main power disconnect to the 'OFF' position

Place the oil collecting can (min. capacity: 10 L (2.64 gal)) under the drain port

Loosen the drain plug. Hydraulic oil is discharged

Wind a seal tape around the drain plug, and tighten the drain plug

Remove the wire to the pump from the terminal box

Remove the wire to the fan from the connector

Remove all the hoses from the hydraulic unit

Remove the tank. Remove the M5 × 12L hexagon socket head cap screws (8 pcs), and the tank can be removed

CAUTION: When replenishing spindle cooling fluid, use only the cooling fluid specified by Yamazaki Mazak. Otherwise, machine trouble and other problems will occur

Cooling fluid collecting pan placed under the drain port and drain plug loosened

Amount of cooling fluid discharged (Max.: 20 L (5.28 gal (US)))

Bolts clamping the suction port cover loosened and cover pulled up

Suction filter removed from the suction pipe and cleaned with compressed air

Note: Do not use an air gun near the machine since this could cause machine trouble

Suction filter installed to the suction pipe and returned into the tank to the state as before step (3)

Cap at the oil filler port removed

CAUTION: Since the machine may move unexpectedly, leading to a hazardous situation if a safety device is faulty, do not rest your body, or leave any unnecessary objects, on the moving units or within the range of movement of the units when performing inspections

If an abnormality is found in the inspection, contact your local Mazak Technical Center or Mazak's distributor

Operator’s door interlock operates correctly

Check the air unit drain function. The automatic drain function of the mist separator is faulty in the following cases

Air is always leaking through the drain port

Corrective action: Turn the drain port in the '→ S' direction for closing. If the air still leaks, refer to 5-5 'Pneumatic System' for the corrective action to be taken

Large amount of water is discharged from the drain port when the drain port is turned in the 'O <-- ' direction

Corrective action: The mist separator must be changed

CAUTION: Set the main power disconnect to the 'OFF' position before entering the machine. Otherwise, you may sustain serious or fatal injury

Replace X-axis slideway covers right and left, if necessary

Replace Y-axis slideway cover, if necessary

Replace Column side wiper, right and left, if necessary

Replace Z-axis slideway cover, if necessary