68INSTRUMENTSANDCONTROLS
IntakeManifoldPressureGauge(HighLevel
ClusterOnly)
Theintakemanifoldpressuregaugeindicatesintakemanifoldpressuretotheengine.
Thepressuregeneratedbytheintakemanifoldpressureshouldbethesameatagiven
enginetemperature,speedandload.Intakemanifoldpressurewillvaryfordifferent
enginesandvehiclemodels.Bymonitoringthegauge,theoperatorcanavoidengine
problems.
ApplicationAirPressureGauge(HighLevel
ClusterOnly)
Airgaugesareconnectedtotheairbrakesystemviasensors.Theywillindicatethe
brakeapplicationpressurefromeitherthefront,rearortrailercircuitpressure.The
gaugewillnotregisterairpressureuntilthefootbrakepedalisdepressedorthetrailer
handbrakeisapplied.
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