By pure chance I noticed that 2 nuts were missing on rear wheel of Valtra N174 and 3 others were finger tight.Luckily,because of weather tractor had spent past month sitting in shed doing nothing.Prior to that the tractor had ploughed 25 ha.Never had an issue with slack wheel nuts before ,on anything.Is this a problem with incorporated washers on this design of nut?
Slack nuts!
- Thread starter Guy Dreich
- Start date
yellow belly
Member
- Location
- south west lincolnshire
they should be checked regularly to save embarrassment or accidents
Wheel nuts need to be all at the same torque one too tight is as bad as 1 loose
over tightening breaks the stud
Wheel nuts need to be all at the same torque one too tight is as bad as 1 loose
over tightening breaks the stud
betweenthelines
Member
- Location
- southwest
Do what the truck people do. Get some plastic pointers that fit on the wheel nuts . You'll tell at a glance if any move
Hilly
Member
- Location
- Scottish Borders.
Unless you you have a rear tag scania and they melt off
- Location
- Exeter, Devon
I can be changing my rear wheels 3 or 4 times a week during the summer. The plastic pointers are a must.
Tractortech
Member
- Location
- Cumbria
Now Then..
I always oil the threads and the space between the nut and washer. Make sure there isn't an excess of paint between the axle flange & the wheel mounting surface.
Tighten all the nuts to the manufacturers specified torque. Then check after a few hours work..
I always oil the threads and the space between the nut and washer. Make sure there isn't an excess of paint between the axle flange & the wheel mounting surface.
Tighten all the nuts to the manufacturers specified torque. Then check after a few hours work..
Massey 6470
Member
- Location
- Co Antrim
Is that between Rowcrops and normal tyres - just curious
kiwi pom
Member
- Location
- canterbury NZ
They're good providing people look at them. I've seen a few interesting ways of fitting them too.
There's a right way and a wrong way of fitting wheels, quite surprising how many tyre companies get it wrong. Of course they need re-torque too.
- Location
- North Norfolk
Manufacturer's torque figures are without oil. If you apply oil you will overstretch the studs.
kiwi pom
Member
- Location
- canterbury NZ
If I remember right a little WD40 or something around the washer on the OP's style nuts is required but It's been a while since I sat through a lecture on it
- Location
- North Norfolk
Yes, oil or something in the dish the nut sits in can help, but not on the threads. After fitting a spare wheel that had been on the bonnet of our LR IIA for a while, the nuts stuck in the dish. The only way to loosen them was to put the long bar on the socket resting on the road, then drop the clutch in reverse. That freed them but put a hole in the tarmac.If I remember right a little WD40 or something around the washer on the OP's style nuts is required but It's been a while since I sat through a lecture on it
- Location
- Exeter, Devon
Yes, switching between standards and row crops.
betweenthelines
Member
- Location
- southwest
I had a problem with wheel nuts working loose (even had wheels coming off!) on a fleet of trucks I used to manage.
Problem was traced to a tyre fitter "gunning" up the wheel nuts as tight as he could. As said, this stretches the threads on the studs.
- Location
- Highland
@betweenthelines
Thank you for solving a mystery that troubled me for 10 years. Turning hay, front wheel started wobbling badly. Nuts very loose.
You start imaging all sorts of sinister things. We'd had new tyres put on when we bought it
Thank you for solving a mystery that troubled me for 10 years. Turning hay, front wheel started wobbling badly. Nuts very loose.
You start imaging all sorts of sinister things. We'd had new tyres put on when we bought it
kiwi pom
Member
- Location
- canterbury NZ
That can be a problem, there's also the problem of the wheel and other surfaces not being cleaned properly, no oil on the nuts of the type in the OP and no good re torque policy. You can do everything right installing them but the odd one will come loose; good checks will spot them.
Easy to re torque a tractor as its at base, harder for trucks on the road.
glasshouse
Member
- Location
- lothians
I would be buying another tractor.
f**k that!
kiwi pom
Member
- Location
- canterbury NZ
I used to do it once a week with a bottle jack and a 3/4 drive socket set, on a MF 6265 that was bad enough.
- Location
- Exeter, Devon
A wheel cradle and cordless rattle gun has made a big difference. It usually takes about 10 minutes per wheel but is all extra work.