Back to Manuals
GeneratorsIntermediate

Generac 150kW Standby Generator

Complete operation, weekly testing, and maintenance guide for Generac 150kW natural gas standby generators.

Generac SG150

Safety Warnings

  • Exhaust contains carbon monoxide - ensure proper ventilation
  • Hot surfaces can cause burns
  • Disconnect utility power before servicing transfer switch

Weekly Test Procedure

  1. Check coolant level
  2. Check oil level
  3. Verify battery voltage (min 24V)
  4. Initiate manual test run
  5. Run under load for minimum 30 minutes
  6. Check for fluid leaks
  7. Record all readings in log
generatorgeneracstandbynatural gasemergency power