Mazak Vertical Machining Center VTC-200C

CAUTION: If coolant, oil or other fluid gets spilled on the floor, wipe it off with a cloth and dry the floor immediately. If the floor remains wet with spilled fluid, personnel could slip over and be injured

Pull out the tank to the machine front side

Remove the filters, bucket, coolant pump, and top cover from the coolant tank. If the machine is equipped with the chip conveyor, remove the chip conveyor too

Pump the coolant from the coolant tank

If coolant level becomes low and pumping becomes impossible, loosen the drain plug of the coolant tank to completely discharge coolant from the coolant tank

When the coolant is completely discharged from the coolant tank, remove chips and sludge deposited at the bottom of the tank

Clean the inside of the coolant tank with rag

After cleaning the coolant tank, refit the drain plug and other parts removed

Supply new coolant to the coolant tank

CAUTION: Switch off the power before checking hoses on moving units for damage. Otherwise, you may sustain serious or fatal injury

Main power disconnect placed to the 'OFF' position

Hoses at the rear of the machine checked for damage

Hoses checked for damage such as cracks, abnormal bulge, and deterioration

If any damage is found, describe it

Sign off on the hoses maintenance

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

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

Warning: Ensure the main power disconnect is in the 'OFF' position before starting

Drain plug loosened and oil discharged

Amount of fresh oil supplied (in L)

When changing oil of HPU 10 L (2.64 gal), clean the filter at the same time (p.94)

Sign off on the hydraulic oil replacement

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