User Manual Q&AAnswer
Feb 18, 2025 - 04:59 AM
To drain and refill the coolant using the CMS-120 Coolant Maintenance System, follow these steps:
1. Preparation:
- Inspect the engine and visible coolant system components for any signs of damage or wear.
- Note the coolant level before starting the service.
- Make appropriate connections on the vehicle's coolant system.
- Plug any open ports venting to the atmosphere.
- Ensure the coolant tank level is at least 3 gallons on the sight tube.
2. Perform Coolant Drain and Clean Operation:
- Obtain a coolant sample if needed.
- Move the Flow Control to "OFF" and connect shop air.
- Connect the red service hose to the highest point and the black service hose to the lowest point of the coolant system.
- Open the ball valves and turn all control panel valves to the YELLOW position.
- Move the Flow Control to "ON" to start draining the coolant.
- When air is seen in the black hose, turn Tank Control and Assist Control to VENT, and Vacuum Control to OFF.
- When air pockets/coolant stop moving in the service hoses, move the Flow Control to "OFF".
- Close the ball valves and remove the service hoses.
3. Perform Coolant Fill Operation:
- Move the Flow Control to "OFF" and connect shop air.
- Connect the red service hose to the highest point and the black service hose to the lowest point of the coolant system.
- Open the ball valves and turn all control panel valves to the GREEN position.
- Move the Flow Control to "ON" to start filling the coolant.
- When the coolant level reaches the "cold" level of the expansion tank or is seen in the red hose, the system is full.
- Turn Tank Control to VENT and Vacuum Control to OFF. The coolant level will adjust.
- When the coolant returns to the "cold" level on the expansion tank, turn Assist Control to VENT.
- When the cooling system stabilizes and both gauges show zero, move the Flow Control to "OFF".
Additional functions, such as adjusting coolant level, top-off procedure, cooling system pressure/leak check, filling the tank, draining the tank, emptying the overflow bottle, replacing the vacuum generator overflow filter, replacing the coolant filter, and removing coolant from a vehicle's expansion/de-gas bottle, are also explained in the manual.
Please refer to the HEAVY DUTY CMS-120 Coolant User Manual for detailed instructions, safety precautions, and illustrations of the machine and its components.
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