5699-E P-48
SECTION 4 INSPECTION, MAINTENANCE AND ADJUSTMENTS
SECTION 4 INSPECTION, MAINTENANCE AND
ADJUSTMENTS
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.
1.
Periodical Inspection Schedule
Interval
Inspection items
Check point
Check
One-day
(1) Check hydraulic unit pressure.
6.0 MPa (870.6 psi)
Spindle rear
(2) Check oil level in the lubrication unit and replenish.
Air panel
(3) Check air source pressure (0.5 MPa (72.55 psi)).
Air panel
(4) Check and replenish the coolant oil tank.
Coolant tank
(5) Clean the spindle tapered bore.
Milling spindle
(6) Remove chips and clean.
In the machine
One-week
(1) Check the spindlehead cooling unit.
Spindle rear
(2) Clean the air filter element.
Air panel
(3) Clean the coolant tank filter.
Coolant tank
(4) Inspect and replace the filter if through spindle coolant unit
(optional) is provided.
Coolant tank
(5) Check oil level in the hydraulic unit.
Spindle rear
(6) Check oil level in the spindle drive gearbox.
Left side
(7) Replenish lubricating oil to the lubrication unit.
Air panel
Two-week
(1) Clean the air filter element in the headstock cooling unit.
Spindle rear
One-month
after installa-
tion
(1) Check the machine for levelness.
Spindle
(2) Replace the oil in the hydraulic unit and spindle cooling
system.
Spindle rear
(3) Clean the coolant tank.
Coolant tank
Three-month
(1) Check the machine for levelness.
Spindle rear
(2) Clean the coolant tank.
Coolant tank
Six-month
(1) Apply grease to the ATC magazine chain.
ATC
(2) Adjust the tension of the ATC magazine.
ATC
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.
Door
(three doors)
