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Would you care to share the name of the business you bought the original piston from? I can't see that doing so would open you up to liability and it could save adventurous other members from trying their luck with that supplier. Maybe someone will discover a good supplier? A friend who works...

The work port threads are likely M18x1.5 because the valves look very similar to mine. The pressure connection under the valve (line from pump to valve) is probably 1/2" BSPP, don't ask me why they have a mix of threads on the same valve.... The rest of the fittings could be anything. The...

Apart from an intimate understanding of the system, what do you have in mind - what are you wanting to achieve?

Seems like you have been doing the right thing, assuming that you are using the recommended fluids and filters. In the absence of any other info I would tend to think the servicing had something to do with it. What is the red light being triggered by... coolant temperature, or oil temp, or oil...

Welcome! PM'ing you a section of my M4500-M5500-M7500 WSM that may help. There's also a high quality scan of the M4500 wiring on kubotabooks.com, I think it's similar to the M7500. Not that I know of. Best to clean it up and find where it leaks. Then use your WSM or post your query on this...

Sticking my neck out here because I've got no experience at all with modern tractors, but since no-one else has replied yet... Brevity is great :-) but it would probably help if you give more info. You say "was just serviced". So was the problem there before it was serviced? Or did it start...

As per Dan's advice, also include a photo of the one/s you want the coupling to match to.

These people make some pretty good gear, and the principles are the same on your blade as on their $1m grader: To get fig 1 penetration requires weight (lots depending on hardness of ground). Transition from 1 to 2 on the fly would need a hydraulic top link. So mostly people operate with...

From the photo it looks like the male fitting has taper thread, not parallel. If it is it taper you will be able to see the taper by eye, or hold a ruler along the outside of the thead and it will be obvious. BSP male fittings with the inverted cone are often available as BSPP (BSP...

Almost certain that what you have is BSP (British Standard Pipe) fittings. The one with a nut is BSP female swivel, the other looks like BSP tapered male (BSPTM). They use a 60 degree cone to seal. Fairly common in some countries and on some (older?) Japanese machines. A reliable fitting...

Excellent addition to your tractor. Even within a particular category linkage, top links come in different sizes. After you've decided on the diameter and shaft size (= push and pull power) and length that suits your application, consider the one with longest travel. Some cheap ones have...

Hi Gordon, welcome to the forum! I think you are missing the point: the recommended quantities in the manuals are not necessarily correct. Many posters have commented on this. The proof in my case is the the operator's manual specifies significantly different quantities than the workshop...

Completely agree. From discussion so far it seems we are assuming round bales of HAY. Round bales of silage (also called balage, but still they are "round bales") are wrapped in plastic to exclude air and normally weigh around 1700 -1800 lb. Heavy ones not far short of a ton. What are...

Given the complaints about Kubota manuals recommending erroneous quantities, I'd use the dipstick marks. Unless you thought the dipstick was the wrong one, in which case it should be checked or replaced.

Can you take a nut from one of those studs to a tool shop and get them to find you a die? Or use vernier calipers to measure male thread diameter and metric thread pitch gauge? Or find a workshop manual - some of them have thread sizes for specific studs.

A photo of the linkage you are talking about would help.

Be aware that under most circumstances, the moment that back blade touches the ground when you operating, it no longer provides stability. I nearly rolled my tractor down a slope when I decided to stop to take a look at something. Being safety conscious (I thought) I lowered the blade and the...

Hooligan! Video? :-)

Hi all Question 1 of 2: Do you think it's acceptable to start a cold diesel engine on half throttle? Its what the operator's manual recommends: (This tractor is about 40 years old, 6 cylinder 2.6 litre IDI engine) As soon as the engine fires I back off the throttle, but I still worry that...

:LOL: thanks Dick. Hope you and your team are all well. I busted the exhaust manifold driving too close to a tree branch the other day, now it's held together with ... hose clamps ... while I wait for a NOS one from someone in Illinois. Looking at the USPS tracking system it has moved 237 miles...