223.7.4 REPOWER THE MAIN SERVICE DISTRIBUTIONPANEL1. At the main service distribution panel, close (turn on) the mainservice entrance breaker.This method will ensure proper transfer between generator andutility in the event that utility returns while the generator is shutoff.4.1 PERFORMING SCHEDULEDMAINTENANCEIt is important to perform service as specified in the MaintenanceSchedule for proper generator operation, and to ensure that thegenerator complies with the applicable emission standards for theduration of its useful life. Service and repairs may be performedby any capable person or repair shop. Additionally, emissions criti-cal maintenance must be performed as scheduled in order for theEmissions Warranty to be valid. Emissions critical maintenanceconsists of servicing the air filter and spark plugs in accordancewith the Maintenance Schedule.4.2 FUSEThe 7.5 amp fuse on the control panel protects the DC controlcircuit against overload (Figures 3.1 and 3.2). This fuse is wiredin series with the battery output lead to the panel. If this fuse ele-ment has melted open, the engine will not be able to crank or start.Replace this fuse using only an identical 7.5 amp replacementfuse. Whenever the fuse is removed or replaced, the exercise timerneeds to be reset.4.3 CHECKING THE ENGINE OIL LEVELFor oil capacities, see the Specifications section. For engine oilrecommendations, see the Engine Oil Recommendations section.When power outages necessitate running the generator for extend-ed periods of time, the oil level should be checked daily.To check the engine oil level, proceed as follows (Figures 4.1, 4.2and 4.3):1. If the generator is running during a utility outage, first turn OFFall associated loads running in the residence. Second, turn thegenerator's main circuit breaker to the OFF position.2. Move the AUTO/OFF/MANUAL switch to the OFF position.3. Remove the dipstick and wipe it dry with a clean cloth.4. Completely insert the dipstick; then, remove it again. The oillevel should be at the dipstick “Full” mark. If necessary, addoil to the “Full” mark only. DO NOT FILL ABOVE THE “FULL”MARK.5. Install the dipstick.6. Reset the AUTO/OFF/MANUAL switch to its original position.7. If the generator was running during a utility outage, first turnthe generator's main circuit breaker back to the ON position.Second, turn ON needed loads in the residence.Never operate the engine with the oil levelbelow the “Add” mark on the dipstick. Doingthis could damage the engine.Figure 4.1 — Oil Dipstick and Fill, 8kWOil Dipstick and FillFigure 4.2 — Oil Dipstick, 10kWFigure 4.3 — Oil Dipstick and Fill,14, 17 & 20kWMaintenance