Description

Bobcat T320 2008 Service Manual – The Only Book You Should Trust for a Factory Rebuild

I see guys come into my shop all the time with a Bobcat T320 that’s got a blown hydraulic line or a dead engine, and they’re flipping through some aftermarket PDF they found online. Half the torque specs are wrong, the wiring diagrams are reversed, and the safety warnings are missing. That’s how you turn a two-hour fix into a blown control valve or a crushed hand. If you own a Bobcat T320 2008 Service Manual, you stop guessing. This is the same 940-page binder the dealer techs use. Original OEM print – not a copy.

Engine Service and Lubrication – Don’t Skip the Oil Weight

Page 1 of the manual hammers the safety rules. I don’t care if you’ve done a hundred oil changes – read it anyway. The Engine section covers checking and adding oil, the oil chart, and removing/replacing the filter and oil. There’s a specific breakdown of biodiesel blend fuel specs and how to purge air from the fuel system. If you’ve ever had a T320 diesel that won’t restart after a filter change, you’ll find the exact bleeding sequence here. No guesswork.

Now, the hydraulic system – that’s where most DIY guys get in over their heads. This manual walks you through the entire Hydrostatic system: checking fluid, replacing the charge filter, case drain filters, and the breather cap. The hydraulic/hydrostatic fluid chart tells you exactly what viscosity to use in San Antonio summers. I’ve seen people use the wrong fluid and fry a $3,000 pump. The manual won’t let you do that.

Hydraulic System Troubleshooting – Cylinder Rebuild and Relief Valve Adjustment

The Hydraulic System section is 100+ pages. It covers every cylinder – lift, tilt, Bob-Tach – with testing, removal, disassembly, and assembly. Parts identification drawings show you exactly which O-ring goes where. The Main Relief Valve has its own description, testing procedure, and adjustment steps. If your T320 loses lift power, you don’t throw parts at it. You test the relief pressure with the specs on the page. I’ve talked to guys who replaced the whole control valve when it was just a dirty relief valve seat. This manual stops that.

Need to rebuild the hydraulic control valve? The manual has individual removal and installation procedures for each spool, solenoid, lock valve, and anti-cavitation valve. Lift spool with detent, tilt spool, auxiliary spool – each one has its own page. You won’t mix them up because the identification chart is printed right there.

Electrical System – Wiring Diagrams for the BICS and Remote Start

Electrical system diagnosis is the number one thing that makes home mechanics call a tow truck. The Bobcat T320 has the Bobcat Interlock Control System (BICS) that prevents operation if the seat bar isn’t down and the cab isn’t locked. The manual includes remote start tool procedures for both the MEL1563 kit and the 6689779 kit. You get the service tool harness control and communicator wiring – no more guessing which pin does what. I’ve fixed a no-crank issue on a T320 using these diagrams in 20 minutes. Without the manual, you’d be chasing a bad relay all day.

Safety and Maintenance – The Stuff That Keeps You Alive

Read the first few pages. Fire prevention covers electrical, hydraulic, fueling, welding, and grinding. The manual tells you to never work under raised lift arms without an approved lift arm support device. It shows the correct and incorrect ways in those B-xxxxx diagrams. There’s a procedure for lifting and blocking the loader, installing the lift arm support device, and raising/lowering the operator cab. The cab door sensor and special applications kit inspection are in there. If you plan to haul the T320 on a trailer, the loading/unloading and fastening steps are spelled out. Skip this section and you risk crushing yourself or someone else.

Source Validity – OEM Print vs. Aftermarket Reprints

I’ve looked at third-party manuals that claim to cover the T320. They combine generic diesel engine specs with a different loader model’s hydraulic layout. The results are dangerous. This manual was printed in 2008 by Bobcat Company. It’s the dealer copy – not for resale, which means it’s the exact document techs use. The file number 6986558 (4-08) is stamped on every page. You get 940 pages of factory spec data. No one has reformatted it or lost the critical notes. If you want to rebuild a T320 without guessing, this is the only source you need.

FAQ – Two Questions I Get Asked Every Week

Does this manual cover the engine overhaul for the T320?

Yes. The engine section includes disassembly, inspection, and assembly procedures. You’ll find torque sequences, ring end gap specs, and valve clearance data. It covers the specific engine serial number location so you know exactly which variant you have.

What about the Bob-Tach system?

Manual includes inspection and maintenance for both hand lever and power Bob-Tach, plus cylinder removal and rebuild.

If you’re serious about keeping your Bobcat T320 running at spec, stop relying on forum advice. Get the factory procedure that matches the loader on your shop floor. Access the Factory Manual now and start the job with the right data.

Related Manuals

• Bobcat T320 2008 Service Manual
• Bobcat S175 2008 Service Manual – OEM Factory Repair Specs
• Bobcat S185 2008 Service Manual – 998 Pages of Factory Specs

External resources: Manual Transmission and Manual Transmission.