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6017 Series Hot Oil Large Temperature Control Units Page 47
Making Quarterly Checks
• Check the heat transfer fluid for deterioration. If the fluid is
noticeably darker, or it seems significantly thicker, drain the
system and replace the fluid with fresh, new recommended
heat transfer fluid.
Do a routine check of the fluid every 1,000 hours of
operation or every three (3) months, whichever comes first.
Contact Sterling, Inc. Service for information on fluid
testing.
Making Six-Month Checks
• Inspect electrical connections for secure, tight attachment
points and ground connections. Inspect the power cable,
especially at the entrance point to the electrical enclosure.
Have a qualified electrician perform this inspection.
• Check the mounting bolts on the pump, the motor, and the
heater flange for tightness.
• Remove the heat exchanger tube bundle and check it for lime
and mineral deposits. Carefully clean the bundle as needed.
6-2 Routine Servicing
Your hot oil temperature control unit requires little in preventive
maintenance and servicing. To keep it in good, reliable working
order, make sure you follow the following scheduled preventive
maintenance procedures.
Keep surfaces clean and free of any excessive accumulations of
dirt, oil, or debris. This is especially true for the pump. It relies on
free air circulation for proper cooling.
Check the motor air intake screen for any accumulation of dirt;
clean it as needed.