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Generac NP-50G — Return the Unit to Service After Storage

Maintenance · generator

For the Generac NP-50G, from the Generac owner's manual.

Applies to: Generac NP-50G, Generac GN-410 engine

Before you start

  • Do not use tap water in the battery

Procedure

  1. Check tag on engine for oil viscosity and classification.
  2. Verify correct recommended oil is used; drain and refill if necessary.
  3. Check battery; fill all cells to proper level with distilled water.
  4. Recharge battery to 100 percent state of charge, or replace if defective.
  5. Turn OFF all electrical loads, add fuel if necessary, then start the engine.
  6. Let the engine warm up.
  7. Apply electrical loads to at least 50 percent of rated wattage capacity.
  8. When engine is thoroughly warmed up, shut it down.

Full service-parts list: Generac NP-50G →

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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