Thwaites Dumper axle seals

[Amateur]

My Thwaites 6 ton dumper (5 stud) axle seals need replacing.
I have removed the hub cover, the circlip, Gear sun and bolts, see attached pic.
Its a JCB axle, part number 450 10302P .
how do I remove the Gear Annulus ring (my finger points to this ring in the pic) ?
how is this ring retained in place ?

 

[Tractor Tim]

It's been a while but if memory serve then you need to put three bolts in the holes on the outside of the ring of bolt holes and use them to press it off I think they are a tight fit though

 

[ACEngineering]

My Thwaites 6 ton dumper (5 stud) axle seals need replacing.
I have removed the hub cover, the circlip, Gear sun and bolts, see attached pic.
Its a JCB axle, part number 450 10302P .
how do I remove the Gear Annulus ring (my finger points to this ring in the pic) ?
how is this ring retained in place ?

no expert but them 3 holes are threaded, so stick a bolt in them and jack it off.

 

[Amateur]

no expert but them 3 holes are threaded, so stick a bolt in them and jack it off.

Correct they are threaded.
Once I insert 3 bolts can I just pull them by hand or do I need some tool (pullers) to remove the ring ?

 

[ACEngineering]

Correct they are threaded.
Once I insert 3 bolts can I just pull them by hand or do I need some tool (pullers) to remove the ring ?

probably just wind them in and it will push gear off.

 

[Amateur]

probably just wind them in and it will push gear off.

That worked, thanks guys.
The seal is a very tight fit.
Should it be seated in the carrier wheel or on the shaft first. Pic of seal resting on shaft.

 

[Amateur]

pic

 

[ACEngineering]

picView attachment 869385

You fit the seal in the wheel hub first.

 

[Amateur]

Thanks. Done.
Do I use the screws to pull it back on the shaft ?

 

[Dave W]

Thanks. Done.
Do I use the screws to pull it back on the shaft ?

Yes. Carefully. Once you're certain it's started and square.

 

[Amateur]

Thanks, done.
I tried lining up the planet gears with the gear sun before seating the gear sun and circlip but I still cannot get it to slide in.
Is there a trick to lining up everything before reassembly ?

 

[ACEngineering]

Thanks, done.
I tried lining up the planet gears with the gear sun before seating the gear sun and circlip but I still cannot get it to slide in.
Is there a trick to lining up everything before reassembly ?

Nope just offer it up stick a bar in the studs and rock it about till it pops on. Making sure the oring dont drop out.

 

[Amateur]

That worked, thanks.
Thwaites recommends mobil 424.
This seems to be an SAE 80W, I presume any sae 80w gear oil will do ?
The only oil i have at present is dexron III, Can I use dexron III in these axles or is that not recommended ?

 

[ACEngineering]

That worked, thanks.
Thwaites recommends mobil 424.
This seems to be an SAE 80W, I presume any sae 80w gear oil will do ?
The only oil i have at present is dexron III, Can I use dexron III in these axles or is that not recommended ?

No and no.

Go buy jcb hp plus oil from dealer. Got the right additives in for brakes.

 

[Amateur]

Will do.
Different question.
The seal on the front prop shaft is leaking.
Do I need to remove the transfer box from the dumper to fix this seal ?

 

[ACEngineering]

Will do.
Different question.
The seal on the front prop shaft is leaking.
Do I need to remove the transfer box from the dumper to fix this seal ?

sorry i cant answer than one not familiar with machine

 

[essexpete]

probably just wind them in and it will push gear off.

There must be a joke in there?
Happy Easter!

 

[Tractor Tim]

Probably not pics would help but when you take the seal out check the shaft for a slight score where the seal runs as it may leak again

 

[ACEngineering]

There must be a joke in there?
Happy Easter!

Not really. Should have said "screw it"? I only got 2 x D's for GCSE English so not the brightest with words. Did worse in math too with a F? I manage fine though?

 

[ACEngineering]

Not really. Should have said "screw it"? I only got 2 x D's for GCSE English so not the brightest with words. Did worse in math too with a F? I manage fine though?

All you really need is Google these days?