Southbend SB1059F User Manual

For Machines Mfg. Since 3/11

EVS Toolroom Lathe w/DRO

-75-

The coolant system consists of a fluid tank, 
pump, and flexible nozzle. The pump pulls fluid 
from the tank and sends it to the valve, which 
controls the flow of coolant to the nozzle. As the 
fluid leaves the work area, it drains back into 
the tank through the chip drawer and catch tray 
where the swarf is screened out.

Use Figures 111–112 to identify the locations of 
the coolant system controls and components.

Although most swarf from machining operations 
is screened out of the coolant before it returns 
to the tank, small particles will accumulate in 
the bottom of the tank in the form of sludge. To 
prevent this sludge from being pulled into the 
pump and damaging it, the pump’s suction tube 
is positioned a couple inches from the bottom 
of the tank and fitted with a fine screen. This 
works well when the tank is regularly cleaned; 
however, if too much sludge is allowed to 
accumulate before the tank is cleaned, the pump 
will inevitably begin sucking it up.

As coolants ages and gets used, dangerous 
microbes can proliferate and create a biological 
hazard. The risk of exposure to this hazard can 
be greatly reduced by replacing the old fluid 
on a monthly basis, or as indicated by the fluid 
manufacturer.

The important thing to keep in mind when 
working with the coolant is to minimize exposure 
to your skin, eyes, and lungs by wearing the 
proper PPE (Personal Protective Equipment), 
such as splash-resistant safety goggles, long-
sleeve waterproof gloves, protective clothing, and 
a NIOSH approved respirator.