Case CX70E, CX75E Mini Excavator Service Manual

These CX70E / CX75E minis usually live in tight jobsites—utility work, foundation prep, trenching around buildings—where downtime hurts fast. This service manual is what I’d keep open when I’m tracing a hydraulic complaint, chasing an electrical fault, or rebuilding a major component. For example, if the boom starts drifting down under load, I’d use this book to follow a logical path: verify pressures, isolate the suspect circuit, then strip and reassemble the valve or cylinder in the right order.

Applications & Use Cases

• System diagnostics: trace hydraulic, electrical, or engine symptoms step by step so you confirm the fault before ordering parts.
• Disassembly/assembly: follow the correct sequence to strip components without damaging seals, pins, or castings, then reassemble and test.
• Adjustments and setup: verify linkages, pedal travel, and control responses after repairs or component replacement.
• Leak and performance issues: isolate whether a problem is in the pump, valve stack, cylinder, or plumbing before you start swapping parts.
• Planned maintenance: inspect, clean, and service critical items so the machine stays reliable in harsh, muddy, or dusty conditions.

FAQ

Q: Can I use this manual on a tablet in the field?

A: Yes, it’s practical on a tablet; you can zoom diagrams and search text while working next to the machine.

Q: Is this worth it if I only do occasional repairs?

A: Yes, it keeps you from guessing, helping you verify faults and reassemble correctly even if you’re not in these machines every day.

Safety Note

Always lock out the machine, support raised components securely, and bleed system pressures before opening any circuit or removing parts.

Case CX70E, CX75E Mini Excavator Index:

Contents
INTRODUCTION
Engine – 10
Hydraulic systems – 35
Frames and ballasting – 39
Tracks and track suspension – 48
Cab climate control – 50
Electrical systems – 55
Booms, dippers, and buckets – 84
Dozer blade and arm – 86
Accessories – 88
Platform, cab, bodywork, and decals – 90
EXCAVATOR CX70E – CX75E ELECTRICAL SCHEMATIC -92277932EN
EXCAVATOR CX70E HYDRAULIC SCHEMATIC -92277931EN
EXCAVATOR CX75E HYDRAULIC SCHEMATIC -92277944EN

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