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MQ Power DCA-220SSV / DCA-220SSVU — Flushing Out Radiator and Replacing Coolant

Maintenance · Cooling system

For the MQ Power DCA-220SSV / DCA-220SSVU, from the MQ Power operator's manual.

Applies to: MQ Power DCA-220SSV, MQ Power DCA-220SSVU, Volvo Penta TAD520GE engine, Volvo Penta TAD741GE engine

Before you start

  • Allow engine to cool when flushing radiator; hot coolant can cause severe burns.
  • DO NOT remove radiator cap until unit has completely cooled.

Procedure

  1. Open both cocks at crankcase side and lower radiator and drain coolant.
  2. Open radiator cap while draining.
  3. Remove the overflow tank and drain it.
  4. Check hoses for softening and kinks; check clamps for leakage.
  5. Flush radiator with clean tap water until rust and dirt are removed.
  6. Do not clean radiator core with objects such as a screwdriver.
  7. Tighten both cocks and replace the overflow tank.
  8. Replace with coolant recommended by engine manufacturer and close cap tightly.

Specs & values

  • Antifreeze mixing ratio must be less than 50%

Full service-parts list: MQ Power DCA-220SSV →, MQ Power DCA-220SSVU →

Source: MQ Power operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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