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Generac QT 1.6L 20kW — Preparation for Start-up (Start-up Checklist)

Installation · Generator set

For the Generac QT 1.6L 20kW, from the Generac owner's manual.

Applies to: Generac QT 1.6L 20kW, Generac In Line engine

Before you start

  • The AUTO/OFF/MANUAL switch must be in the OFF position before working on the generator.

Procedure

  1. Ensure that the 120VAC circuit breaker to the battery charger is open.
  2. Remove the fuse from the control panel.
  3. Connect the battery cables to the battery. Attach negative battery cable last.
  4. Close the 120VAC circuit breaker to the battery charger.
  5. Measure the voltage at the battery before and after the charger is turned on.
  6. Verify all AC electrical connections are tight at the circuit breaker and transfer switch.
  7. Check all electrical plugs throughout the generator.
  8. Verify the AUTO/OFF/MANUAL switch is in OFF position.
  9. Open the valve to the engine fuel line.
  10. Bleed the fuel system of air.
  11. Open the generator main line circuit breaker.
  12. Connect a manometer to the gas line and record the static pressure.
  13. Insert the fuse into the control panel.
  14. Move the AUTO/OFF/MANUAL switch to the MANUAL position so the engine cranks and starts.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Static gas pressure must be as listed in the Specifications.

Full service-parts list: Generac QT 1.6L 20kW →

Source: Generac owner'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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