Case Alpha Series SR270 SV300 SV340 TR340 TV380 Tier 4B Final Electro-Hydraulic Wiring Diagram

This wiring reference for the Case Alpha Series SR270 SV300 SV340 TR340 TV380 Tier 4B Final Electro-Hydraulic helps you follow circuits, connectors and harnesses when you are diagnosing an electrical problem or checking a repair.

Document reference: RAC48049039.

What the diagrams cover

• Main/Accessory Power Distribution, Ignition/Charging System, Grounding System
• Engine F5C T4, Throttle Sensors, ET Pump/Hydraulics, Hydraulic Interlocks, Loader Valve and Sensors
• Bulkhead Connections, Left/Right-Hand Cab Console and Control Handle, Seat, Unit Control Module (UCM)
• Lamps, Indicators, Boom Road Lights, Wipers/Washers, Instrument Cluster, HVAC, Radio
• UJM Connectors, Multifunction Connectors, Telematics, EHF, Multifunction Jumper, 2nd Aux, Diagnostic Connector
• Fuel Filter Jumper, Power Distribution, Front Lights, Unswitched Power Option, Chassis Interconnection

Models covered

• SR270
• SV300
• SV340
• TR340
• TV380

User help

1. Check the fit first. Compare your model and serial number with the coverage shown above. If you are unsure, message us with those details before ordering and we will help you confirm.
2. Get the file. This is a digital PDF download. Nothing is shipped, so you can start using it as soon as you have the file.
3. Read it on any device. The file opens in standard PDF readers on Windows, Mac, Android and iOS. Keep a backup copy so you always have it.
4. Jump straight to the section you need. Start from the table of contents or search for a part name, fault code or value, then print just those pages for the workshop.
5. Trace circuits methodically. Identify the circuit, connector or harness in the diagram, then check voltage, continuity and grounds at the points shown before replacing components.
6. Stay safe. Repairs on engines, hydraulics, fuel and electrical systems can be dangerous. Follow the safety instructions in the document, use proper tools and support equipment, and follow local regulations.

CASE and all model names are trademarks of their respective owners and are used here only to identify compatibility. This store is an independent seller and is not affiliated with or endorsed by CASE. For informational and maintenance use.