Section 4 Inspection, Maintenance And Adjustments; Periodical Inspection Schedule - Okuma VTM-200 Operation & Maintenance Manual

Vertical multitasking machine

Table of Contents

SECTION 4 INSPECTION, MAINTENANCE AND

The utilization rate of NC lathes in comparison with conventional machine tools is generally 3 to 4 times

higher. Therefore, downtime due to problems would all the more affect and reduce productivity.

In situations where one operator handles more than one machine at a time, the operator is often likely to be

away from the machine. Minor problems might damage workpieces or even develop into major breakdowns.

Thus, routine inspection and maintenance work should be strictly carried out to keep the machine running at

its best.

In addition to periodical inspection and regular maintenance, this section deals with adjustments that may be

required depending on the condition of the machine.

Fur further information and in case of problems, call your Okuma representative.

Periodical Inspection Schedule

Interval

One-day

(1) Check hydraulic unit pressure.

6.0 MPa (870.6 psi)

(2) Check oil level in the lubrication unit and replenish.

(3) Check air source pressure (0.5 MPa (72.55 psi)).

(4) Check and replenish the coolant oil tank.

(5) Clean the spindle tapered bore.

(6) Remove chips and clean.

One-week

(1) Check the spindlehead cooling unit.

(2) Clean the air filter element.

(3) Clean the coolant tank filter.

(4) Inspect and replace the filter if through spindle coolant unit

(optional) is provided.

(5) Check oil level in the hydraulic unit.

(6) Check oil level in the spindle drive gearbox.

(7) Replenish lubricating oil to the lubrication unit.

Two-week

(1) Clean the air filter element in the headstock cooling unit.

One-month

(1) Check the machine for levelness.

after installa-

(2) Replace the oil in the hydraulic unit and spindle cooling

tion

system.

(3) Clean the coolant tank.

Three-month

(1) Check the machine for levelness.

(2) Clean the coolant tank.

Six-month

(1) Apply grease to the ATC magazine chain.

(2) Adjust the tension of the ATC magazine.

One-year

(1) Change oil in the hydraulic unit and clean or change the oil

filter.

(2) Change oil in the spindle cooling unit.

Two-year

(1) Replace the door window glass.