Not sure if metric or imperial bolts and nuts on the FX255D

[LeeSB]

is the wheel nuts on a yanmar FX255D tractor wheels 14 mm or 1/2 inches

 

[PILOON]

Since most units come from offshore I strongly suspect metric.*
To make things confusing often loaders (and other accessories) are of local fabrication they could be SAE.

*if in doubt, take one wheel nut to the auto parts and they will confirm.

 

[HoyeTractor]

The F255D uses 16mm bolts/studs on the rear and 14mm on the front.

 

[LeeSB]

Thank you! for your help!

That is as I expected, the guy working on my tractor was testing my sanity ;-)

 

[bmaverick]

The F255D uses 16mm bolts/studs on the rear and 14mm on the front.

16mm rounds to 15.875mm aka 5/8-inch.

A 16mm socket will fit over a 5/8-inch bolt and loosen/tighten it. BUT, a 5/8-inch socket will not fit over a 16mm bolt. LOL crazy

 

[CoyPatton]

16mm rounds to 15.875mm aka 5/8-inch.

A 16mm socket will fit over a 5/8-inch bolt and loosen/tighten it. BUT, a 5/8-inch socket will not fit over a 16mm bolt. LOL crazy

I believe he is asking about thread diameter and not bolt head size.

 

[clemsonfor]

I would bet money that unless someone has retapped certain holes there is not an SAE anywhere on that machine.

 

[LeeSB]

yes it is thread size, not bolt head size.
and yes the machine is all metric (I think) ;-)
The only thing that isn't metric is the tires.
Thanks to all for the help, one more thing does anyone know where I can get a copy of parts manual in English.

 

[clemsonfor]

For an FX....forget about it. The only thing you will understand is the actual part number.

 

[LeeSB]

The F255D uses 16mm bolts/studs on the rear and 14mm on the front.

I have one more question about bolts, would you have any idea what size bolts are used to hold the front-end loader on 'in mid-frame'

'in mid-frame' ; I can't upload a photo so I might be able to give a good enough description.
A couple of bolts along the side in middle at base of the frame of the tractor to attached some front-mounted lifting device blade or some such thing.

I do have electrical questions but I'll start a new thread for them.