Generac 005221-0 — Preparation for Start-up

Installation · Generator set installation

For the Generac 005221-0, from the Generac owner's manual.

Applies to: Generac V-type engine

Procedure

1. Ensure that the 120VAC circuit breaker to the battery charger is open.
2. Remove the fuse from the control panel. Open the front door of the control box and remove the 15 Amp ATO fuse.
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. Visually inspect entire area for loose paper, plastic wrappings, leaves; check all hoses clamps fittings for leaks or damage.
8. Check all electrical plugs throughout the generator. Ensure each plug is seated correctly and fully inserted.
9. Verify the AUTO/OFF/MANUAL switch is in OFF position.
10. Open the valve to the engine fuel line.
11. Bleed the fuel system of air (necessary for long fuel lines).
12. Open the generator main line circuit breaker.
13. Connect a manometer to the gas line and record the static pressure.
14. Insert the fuse into the control panel.
15. Move the AUTO/OFF/MANUAL switch to the MANUAL position. The engine should now crank and start.

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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