Lubrication - Okuma VTM-200 Operation & Maintenance Manual

2.

Lubrication

[Supplement]
The machine should be completely and correctly lubricated in strict adherence to the
directions in the Lubrication Chart in the following page.
(1) Always Use the Specified Lubricating Oil.
•
If the oil other than specified is used, the lubrication unit might fail to operate normally.
•
Lubricating oil used in common with coolant or lubricating oil used in common with hydrau-
lic oil might cause corrosion of lubrication unit or mixing of oils to result in lubrication failure,
which, in turn, leads to damages on the slideway surfaces.
(2) For Coolant, Use the Specified Coolant.
•
Coolant usually contains chemical additives such as activator. If improper coolant is used,
lubricating oil will be affected by chemicals and therefore, use the specified coolant so far
as possible.
•
If coolant which is not our recommendation is to be used, check to be sure that it will not
cause any following problems.
Mixing with lubricating oil, possible parting, peel of paint, rusting, and swelling of packings
If a problem is found during the use of the coolant, avoid the use of such coolant.
(3) To maintain the coolant oil performance and the filter performance (life) for a long time, you
should know the correct maintenance methods such as how to dilute the coolant with water and
how to replenish the coolant tanks.
When using an emersion type coolant, for example:
•
If you supply water after poring undiluted coolant into the tank, the coolant tends to gel and
causes the filter to clog in a short time.
•
If the coolant is not sufficiently stirred after being supplied, it tends to gel and causes the fil-
ter to clog in a short time.
•
If the PH value is 8.5 or less, the coolant is apt to rot quickly. The rotten coolant deterio-
rates its lubrication ability and emits odors.
(4) Amount of Lubricating Oil and Its Discharge Condition Must Be Checked Everyday.
•
Whether or not lubricating oil is properly supplied can be checked by checking oil level in
the tank.
•
Prior to shipment of the machine from our plant, the oil and the coolant tanks are flushed
out and must therefore be refilled during the initial installation of the machine.
SECTION 4 INSPECTION, MAINTENANCE AND ADJUSTMENTS
5699-E P-50