ESCO-TDS1700 IH Maintenance
Rotary Pump (RP) Oil Replacement Procedure
❶ Safely stop the instrument exactly as detailed in the instruction manual.
❷ Confirm that the primary Rotary Pump (RP) physical block has fully cooled down to a safe working temperature.
❸ Remove the four RP mounting nuts, quick-disconnect clamps, corrugated metal line connection blocks, and thermal fuse, then carefully lower the RP unit clear of the system chassis housing.
❹ Open the main oil filling port cap.
❺ Position a suitable waste oil catch basin safely underneath the exit point to avoid spilling, and then open the drain valve. Proceed with care, as the pump oil will discharge rapidly.
❻ Once the fluid has completely evacuated from the reservoir, close the oil drain valve securely.
❼ Pour fresh pump fluid into the oil filling port until the liquid volume matches the specified capacity line.
❽ Close the oil filling port cap firmly, and reinstall all components back onto the RP chassis housing in the exact reverse order.
Safety Precautions
●Since the spent oil may contain highly toxic substances, personnel MUST wear protective safety glasses and robust oil- and chemical-resistant gloves throughout the procedure.
● Lay down heavy-duty protective floor sheeting underneath the chassis prior to pump extraction or handling to fully contain any fluid droplets or scattering.
● Immediately after stopping the RP, the internal oil may be extremely hot, posing a severe risk of thermal burns.
● Dispose of spent chemical fluids strictly via approved hazardous waste disposal networks.
● Never use any fluids other than the specialized lubricants officially supplied by ESCO or approved OEM manufacturer genuine oils. Alternative fluids pose significant failure risks to high-vacuum seals.
● The pump block is an extremely heavy object. Exercise proper lifting protocols to prevent catastrophic drops or personal injury.
● All service actions and replacement work must be handled exclusively by trained, authorized personnel thoroughly familiar with the procedure.
