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Generac QuietPact 40 — Return to Service

Maintenance · Generator

For the Generac QuietPact 40, from the Generac owner's manual.

Applies to: Generac QuietPact 40, Generac GN-220 engine

Before you start

  • DO NOT USE TAP WATER IN THE BATTERY.

Procedure

  1. Check the tag on the engine for oil viscosity and classification; verify correct oil; drain and refill if necessary.
  2. Check state of battery; fill unsealed batteries with distilled water; recharge to 100 percent or replace if defective.
  3. Clean and wipe the entire generator.
  4. Reconnect the battery observing battery polarity.
  5. Turn OFF all electrical loads; add fuel if necessary and start the engine.
  6. Allow unit to run for several minutes to 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.

Specs & values

  • Recharge battery to 100 percent state of charge

Full service-parts list: Generac QuietPact 40 →

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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