Caterpillar 312C Excavator Factory Service Repair Manual (BWH00001-Up)

This is a service and repair manual for the Caterpillar 312C Excavator. It is written for people who do the work themselves — workshop mechanics and owners who prefer to do their own servicing alike — and collects the procedures, specifications and test information you need in one searchable document.

The document is 3,607 pages long.

What's inside

• RENR5503-04 ? 312C Excavator Machine Systems (removal, installation, assembly, disassembly of hydraulic, structural, and cab components)
• SENR5553-10 ? 3064 and 3066 Engines for Caterpillar Built Machines (engine service manual)
• SENR5664-27 ? Air Conditioning and Heating R134a for All Caterpillar Machines
• UENR3262-00 ? Seal Installation Guide
• Boom, bucket, blade, and cylinder removal, installation, assembly, and disassembly
• Control valves, pilot valves, and hydraulic pump service
• Cab, counterweight, and undercarriage component procedures
• 3064/3066 engine service and repair
• Air conditioning and heating system service
• Seal installation techniques

Coverage

312C (BWH00001-Up).

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. Find things quickly. Use the contents pages and your reader's search (Ctrl+F or Cmd+F) to jump to a component, fault code or specification. Print only the pages you need for the workshop.
5. Work step by step. Read the safety notes for a procedure before you start, follow the stated torque values and sequences, and use the specification and test sections to confirm a fault before replacing parts.
6. Safety first. Work on machinery, fuel and electrical systems carries real risk. Follow the document's safety notes, use suitable tools and supports, and comply with local rules. If a job is beyond your experience, use a qualified technician.

Caterpillar 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 Caterpillar. For informational and maintenance use.