Generac — Engine Start-up and Transfer (Manual Transfer Switch)
Operation · Generator and manual transfer switch
From a Generac owner's manual — check it applies to your exact model before use.
Applies to: Generac In Line engine
Before you start
- The Maintenance Disconnect Switch and AUTO/OFF/MANUAL switches must be set properly, or the generator will crank and start as soon as utility power is turned off.
- Do not attempt manual operation until all power supplies to the transfer switch have been positively turned off, or lethal electrical shock will result.
- Do not crank the engine continuously for longer than 30 seconds, or the heat may damage the starter motor.
Procedure
- Turn OFF or disconnect the utility power circuit to the transfer switch.
- Set the transfer handle to its UTILITY (NORMAL) position with load circuits connected to the utility power supply.
- Set the standby generator's main line circuit breaker to its OFF (or OPEN) position.
- Start the generator.
- Let engine stabilize and warm up.
- Check all applicable instrument and gauge readings.
- Move the transfer switch manual handle to its STANDBY (GENERATOR) position.
- Set the standby generator's main line circuit breaker to its ON (or CLOSED) position.
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.