I ordered the Kubota Factory Service Manual (FSM) for my new L3130 HST. The manuals are comprehensive and cover most everything you would need to service or repair the units. The manual ran $99 at the dealer. I also purchased the Electrical Manual at $35 - don't bother with it, it's not worth it.
I have been wanting one for some time. I even hit Bird up to sell me his when he sold his tractor, but the manual went with the tractor. I've been reluctant to spend the $100.00 for one and sometimes they are on back order for many months. I watched e-bay and picked one up for $20.00. It should be here Monday.
The shop manual goes into a lot of detail. It shows how the test and repair major and minor components and assemblies. I have the complete manual set. The complete set includes the shop manual, parts manual, and engine manual. I also have the loader and back hoe parts manuals for the TLB that I have now. I received most of my manuals yesterday for my new tractor, loader and back hoe that is still at the dealer.
I would assume that the Kubota manuals are the about the same as my Massey Fergusons.
Most WSM Ive used give you the sequence of steps and important stuff needed to know like exploded diagrams, some photos, schematics, troubleshooting charts, torque values, special tools, clearances, voltage/ohms and assume you have mechanical skills and tools to do the job. Example:
1. Take out the spiral bevel pinion shaft assembly (4) with shift fork
(6), range gear shaft assembly (5) and PTO drive shaft assembly
2. Remove the front wheel drive shaft (2).
Dont expect spoon feeding. Not all manufacturers provide the same amounts of detail.
The quantity and quality of information in a manual would be determined by what the manual is for and when it was made. Workshop manuals for newer tractors imported through regular dealers are generally quite good. Workshop manuals for grey market tractors can be hit or miss and possibly hard to come by in English.