For Case CX300C Excavator, this reference brings together the listed repair manual material. Start with Engine and follow the relevant document section for the task.
What’s Covered Inside
Introduction
Engine
Hydraulics System
Frames and Ballasting
Tracks and Track Suspension
Cab Climate Control
Electrical System
Booms, dippers and buckets
Dozer Blade and Arm
Platform, cab, bodywork and decals
Special Tools Index
Hydraulic Schematics
Electrical Schematics
Manual Extract: Sun load sensor
Solar radiation sensor
This is the air conditioner solar radiation correct sensor. It detects the strength of sunlight with a photodiode, converts it into milli-amp and sends that to the controller.
Solar radiation sensor inspection method
Disconnect the solar radiation sensor connector from the harness and measure the voltage between the sensor side connector terminals using the tester’s voltage measurement mode. The voltage must be different when light is striking the photoreceiver section and when it is not. (The voltage is about 0 V when absolutely no light is striking the photoreceiver.)
NOTICE: Always measure with the tester in voltage measurement mode (V mode). Measuring in resistance mode (Ω mode) would destroy the sensor
Identify the Tier Level of your Equipment (Read our Article on Tier Level )
Use publication 48063130 (Oct 2016) & 47795405 (Oct 2015) with the CX300C model details to select the appropriate documentation. Refer to Engine within its stated document and equipment scope.














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