Case 6-590, 6T-590, 6TA-590 Engines Service Manual (7-67681R0)

These Case 6-590 series engines usually live on loaders, backhoes, or ag rigs that see mud, dust, and a lot of idling and hard pulls. This manual helps you trace a problem from the first symptom to the actual failed part, so you’re not just throwing money at it. Say the engine’s hard to start cold: you’d follow the steps to check fuel supply, verify glow operation, test cranking speed, and isolate whether it’s fuel, air, or electrical before you touch a wrench.

Applications & Use Cases

• Track down low power by tracing boost, fuel delivery, and exhaust backpressure in the order the book lays out.
• Check and verify your timing and fuel settings after a pump swap so the engine starts clean and doesn’t smoke like crazy.
• Inspect and test cooling and lube circuits when you’re chasing overheating or low oil pressure, instead of guessing at pumps and radiators.
• Bleed, align, and route fuel lines correctly after repairs so you don’t introduce air or rub-through leaks.
• Use the step-by-step sequences to confirm a fault before you pull the head or order big-ticket parts.

FAQ

Q: Is this a searchable PDF or just page scans?

A: It’s typically a PDF you can search by keyword, so you can jump right to the section you need at the machine.

Q: Can I print just a few pages to take to the jobsite?

A: Yeah, most folks print the relevant procedures or diagrams, stick them in a sleeve, and keep the full file on a laptop or tablet.

Safety Note

Always support the machine and isolate the engine from accidental starts before you inspect or test anything around the fan, belts, or flywheel.

Case 6-590, 6T-590, 6TA-590 Engines Index:

• Table of contents
• General
• Engine
• Fuel System

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