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Generac 6.8 L / QT 130kW — Start-up Checklist - Preparation for Start-up

Installation · Generator set

For the Generac 6.8 L / QT 130kW, from the Generac owner's manual.

Applies to: Generac V-type engine

Before you start

  • Before working on the generator, ensure the AUTO/OFF/MANUAL switch is in the OFF position and the 120VAC supply to the battery charger is switched OFF.

Procedure

  1. Ensure the 120VAC circuit breaker to the battery charger is open.
  2. Remove the 15 Amp ATO fuse from the control panel.
  3. Connect the battery cables to the battery, attaching the negative cable last.
  4. Close the 120VAC circuit breaker to the battery charger. Measure battery voltage before and after.
  5. Verify all AC electrical connections are tight at the circuit breaker and transfer switch.
  6. Open the valve to the engine fuel line and bleed the fuel system of air.
  7. Insert the fuse into the control panel, then move AUTO/OFF/MANUAL switch to MANUAL to crank and start.

Tools required

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

Specs & values

  • Record static gas pressure with a manometer; it must be as listed in the Specifications

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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