Description

Kubota M5640SU 2009 Workshop Manual

If you are digging into a Kubota M5640SU 2009 Workshop Manual tractor and you don’t have the factory book on the bench, you are guessing. Guessing costs you time and bolts. I’ve seen more than one DIY guy snap a head bolt because he used a generic torque chart. This manual is 358 pages of what Kubota actually printed in July 2009. No aftermarket nonsense. Every spec comes straight from the engineering floor in Osaka. Page I-8 lists the engine specifications – displacement, compression ratio, injection timing – all numbers you need before you pull the cylinder head. Page I-10 gives dimensions so you know if that new tire will clear the fender. If you want to do the job right, start here.

Kubota M5640SU 2009 Workshop Manual Coverage

The manual breaks into four main sections: Information, General, Engine, Clutch, and Transmission. The General section covers tractor identification including the E3B engine and cylinder numbering – critical when you index the firing order. It also has a full chapter on handling precautions for electrical parts and wiring. Color codes for wires, fuse ratings, connector care – stuff that keeps you from frying the ECU. The Engine section goes through EGR system, cylinder head and valves, timing gears, piston and connecting rod, crankshaft, oil pump. Each sub-section has its own troubleshooting table and servicing specs. You want torque for the cylinder head? It’s in the Engine tightening torques table. No need to hunt through three different PDFs.

358 Pages of Factory Specs

Seven service intervals from 50 hours to 3000 hours. Daily checks that include hydraulic fluid level and tire pressure. If you skip the 400-hour check on the fuel filter, you risk injector damage. The manual lays out the order: check, adjust, replace. Special tools are listed for both engine and tractor – part numbers so you can order the right puller before you start. I’ve told more than one home garage guy: buy the tool, don’t hammer on the shaft. The torque tables cover general use screws, stud bolts, and hydraulic fittings. That includes pipe cap nuts and adaptors. Page I-8 also lists specifications for the engine – displacement, compression ratio, injection timing – all numbers you need before you pull the cylinder head. Page I-10 gives dimensions so you know if that new tire will clear the fender.

Engine Overhaul: Cylinder Head and Valves

When you get to the engine section, the manual walks you through separating the engine from the clutch housing case. Then disassembly of external components, EGR valve and cooler, cylinder head and valves, timing gears, camshaft, fuel camshaft, piston, connecting rod, and crankshaft. Each step has a servicing subsection with inspection limits. For example, the cylinder head warpage limit, valve stem clearance, and valve seat width. These are the numbers that matter when you decide to resurface or replace. The manual also covers the E3B engine identification – you need to know which variant you have before ordering parts. The cylinder number section tells you the firing order and orientation. If you mix that up, the engine runs backwards or not at all.

What Torque Values Are Listed?

Three separate torque sections in this manual. General use screws and bolts, stud bolts, and hydraulic fittings. For hydraulic fittings, they break it down further: hose fittings, pipe cap nuts, adaptors, elbows. That’s the level of detail you need when you’re replacing a line on the loader. You don’t just tighten until it feels snug – you can distort the seat. The engine section has its own tightening torques for cylinder head bolts, main bearing caps, connecting rods. Those are critical. I’ve seen engines where the head bolt torque was off by 10 ft-lbs and it leaked coolant. This manual gives you the exact values in both ft-lbs and Nm. No rounding, no “tighten to spec” – actual numbers.

Electrical System: Wiring Precautions

The General section has a dedicated chapter on handling precautions for electrical parts and wiring. It covers wiring colors – the factory color codes so you can trace circuits. Battery disconnection sequence, fuse ratings, connector handling, and how to use a circuit tester without damaging the pins. That’s stuff that aftermarket manuals gloss over. If you short a harness on a modern tractor, you can fry the instrument cluster. This manual tells you the color of each wire in the harness. The Clutch section also includes electrical checks for the PTO clutch valve. The Transmission section has wiring diagrams for the shuttle shift and four-wheel drive engagement. All from the factory.

Clutch and Transmission Servicing

The clutch section covers both traveling clutch and PTO clutch. You get the oil flow diagram for the PTO clutch valve, the linkage adjustment steps, and the disassembly of the clutch pack. The transmission section splits into 2WD and 4WD models. It details the main gear shift, shuttle shift (low-reverse), hi-range shift, shift linkage mechanism, and four-wheel drive section. The manual also links to the Manual Transmission Wikipedia article for background on how similar designs work, but everything you need to fix the Kubota is right here. And if you also work on other machines, check the Kubota R420B R520B Workshop Manual – Factory Specs for Wheel Loaders or the Kubota Z402-EB 2000 Workshop Manual – Factory Service Specs for smaller engines. The Manual Transmission article is a good primer on general theory, but for precise specs, stick with OEM.

Get the Right Tool Before You Start

Special tools for engine and tractor are listed with part numbers. If you don’t have the tool, the manual tells you when you can substitute a universal puller and when you cannot. For example, removing the injection pump gear requires the specific puller – no shortcuts. The same section covers tire pressure, wheel adjustment for 2WD and 4WD front wheels, rear wheels, and even liquid injection for ballast. All from the factory.

Does this manual cover the EGR system?

Yes. The Engine section has a dedicated subsection for the EGR valve and EGR cooler, including disassembly and servicing.

What about the transmission?

Entire chapter on transmission with structure diagrams, shift linkage adjustments, and four-wheel drive engagement. Covers both 2WD and 4WD models.

Is this the complete factory manual?

It is the official Kubota Workshop Manual issued July 2009, 358 pages. No reprints, no aftermarket edits. Contains all sections from Safety First through Servicing.

Can I use it for the M5640DT-SU?

Yes, the manual covers both M5640SU (2WD) and M5640DT-SU (4WD) models. The transmission section splits procedures for each variant. The wiring appendix applies to both.

You have the tractor on the lift, the engine is out, and you need the factory procedure for reassembly. This manual lines out the sequence: cylinder head bolt tightening order, torque steps, valve clearance adjustment, timing gear alignment. You get the Kubota M5640SU 2009 Workshop Manual right on your screen or printed out. No more searching forums for guesswork numbers. Access the Factory Manual and torque that head bolt to the exact spec Kubota engineers intended. Your engine will thank you.