57Service Manual – Advance 7765 / Nilfisk CR1500Electrical SystemFunctional DescriptionOverviewThe electrical system consists of the switches, gauges and relays on the instrument panel, the circuitbreakers, the drive pedal proximity sensors and the battery. Note that the hydraulic solenoid valves andengine electrical components are described in the corresponding sections of this manual.Instrument Panel and Circuit BreakersThe instrument panel houses the gauges, lights, switches and relays that monitor and control the variousmachine systems. The 10 15-amp Circuit Breakers are mounted to the right of the instrument panel.15-amp CircuitBreaker (10)HourRelayShakerRelayForward RelayReverse RelayR1R2R3R4Low LPIndicator(LPG only)MainBroomSwitchVoltmeterOilPressureGaugeFuel Gauge(Gas/Dieselonly)SideBroomSwitchShakerMotorSwitchWaterTemperatureGaugeIgnition(Key) SwitchHorn PushButtonGlow PlugSwitch(Diesel only)SqueegeeBladeSwitchScrub BrushLift SwitchHighRecoveryWarningLightLowSolutionWarningLightBrushPressureSwitchBrushRotationSwitchHourMeter