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.
6017 Series Hot Oil Large Temperature Control Units | Page 47 |