Southbend South Bend SB1042PF - Manual (Page 70)

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For Machines Mfg. Since 3/11 Turn-Nado ® EVS Lathes M A I N T E N A N C E
Lubrication
Headstock
The headstock has a pressurized lubrication
system that consists of an oil pump, an oil
pressure safety switch, a supply tank, oil hoses,
and a manifold with oil distribution lines. The oil
distribution lines direct oil to key locations, such
as the spindle bearings and upper headstock
gearing, to ensure that they always remain well
lubricated.
The oil pump automatically starts and begins
lubricating the headstock components when
the master power switch is turned ON and the
STOP button is reset. This ensures the headstock
bearings and gears are properly lubricated
before the spindle is started to protect these
components against damage from a dry start-up.
Review the lubrication system diagram
illustrated in Figure 97 to familiarize yourself
with the function and relationship of the
headstock oil system components.
Suction
Supply
Return
One Way
Check Valve Pump
and
Motor
Tank
Oil Pressure
Safety Switch
Headstock
Oil Distribution
Manifold and Lines
Fill Spout
with
Dipstick
Figure 97. Lubrication system overview.
Oil Pressure Safety Switch
To prevent costly damage to the headstock gears
and bearings from lack of adequate lubrication,
an oil pressure safety switch (see Figure 98) is
installed on the output side of the pump and will
shut the lathe down if oil pressure is lost for any
reason.
If the headstock components are not
adequately lubricated before and during
operation, lathe damage could occur. Never
bypass the oil pressure safety switch for any
reason.
Figure 98. Oil pump and oil pressure safety switch.
Oil Suction
Line from
Tank
Pump
Headstock Oil
Supply Line
to
Check Valve
Oil Pressure
Safety Switch