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Home›Repair guides›Refilling the Cooling System

PSI (Power Solutions Intl) 53L — Refilling the Cooling System

For the PSI (Power Solutions Intl) 53L.

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Before you start

  • Use of a fill pump is required to properly purge the system of air during a fill procedure. Coolant should be added to the overflow tank filler neck for top-off only. Failure to do so can result in engine damage.

Procedure

  1. Connect a coolant pump to the proper radiator fill fitting.
  2. Fill the system with fresh PSI-approved pre-mixed coolant.
  3. Disconnect the pump. Replace the radiator cap or overflow tank filler cap.
  4. Start the engine and run at 1800 RPM to thoroughly circulate the coolant and purge the system of air bubbles. Run for a minimum of 30 minutes.
  5. Shut the engine down and allow to cool.

Tools required

  • Coolant pump

Specs & torque values

  • PSI-approved pre-mixed coolant

Source: manual:56100039-11-53L-Operations-Maintenance-Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.