Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Generac›Return To Service

Generac QuietPact 40 LP — Return To Service

Maintenance · Generator

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

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

Before you start

  • DO NOT USE TAP WATER IN THE BATTERY.
  • Damage may occur if the battery is connected incorrectly.

Procedure

  1. Check the tag on the engine for oil viscosity and classification. Verify that the correct recommended oil is used.
  2. Check the state of the battery. Fill all cells of unsealed batteries with distilled water. Recharge to 100 percent state of charge 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 then start the engine.
  6. Allow the unit to run for several minutes to warm up.
  7. Apply electrical loads to at least 50 percent of the unit's rated wattage capacity.
  8. When the engine is thoroughly warmed up, shut it down.

Specs & values

  • Apply loads to at least 50 percent of rated wattage capacity

Full service-parts list: Generac QuietPact 40 LP →

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.

More Generac repair guides →