JCB 2135 Clutch Problem

[yellowbelly]

Young yellowbelly has a 2135 with a very 'savage, jumpy' clutch. I've not seen it but he says it's 'all or nothing'. You can't ease it in or out gently.

Apparently, it's an oil operated system with a master and slave cylinder.

Anybody any idea where he should start looking??

Master cylinder first??
Slave cylinder first??

Any help appreciated. TIA.

 

[melted welly]

Young yellowbelly has a 2135 with a very 'savage, jumpy' clutch. I've not seen it but he says it's 'all or nothing'. You can't ease it in or out gently.

Apparently, it's an oil operated system with a master and slave cylinder.

Anybody any idea where he should start looking??

Master cylinder first??
Slave cylinder first??

Any help appreciated. TIA.

save yourselves a lot of hassle and just burn the horrible thing!

 

[melted welly]

Young yellowbelly has a 2135 with a very 'savage, jumpy' clutch. I've not seen it but he says it's 'all or nothing'. You can't ease it in or out gently.

Apparently, it's an oil operated system with a master and slave cylinder.

Anybody any idea where he should start looking??

Master cylinder first??
Slave cylinder first??

Any help appreciated. TIA.

But if burning isn’t an option, what age is it? Our 2011 I’m pretty sure has a potentiometer on clutch pedal which comes out of adjustment, or maybe that was the throttle, or probably both....,,,,,

 

[yellowbelly]

what age is it

Think it's 1998/9. He can't see a potentiometer, but thanks anyway.

 

[milkloss]

Do they have a booster unit for the clutch? A mate has one in a 3185 that I think Is the cause of an on and off clutch.

 

[daveydiesel1]

If ur burnin her all buy her of u for cheap. Would love a fastrac

 

[milkloss]

Also something to do with micro switches on the clutch pedal. If the splitter clutch bangs in late (after the main clutch has started to bite) it will kick off quite suddenly. There's a post on here somewhere about it.

 

[milkloss]

The other place

jcb fastrac 3155 clutch jumping

I have a S reg 3155 (1998) that has developed a bad snatching / jumping when it gets hot, I have bled the clutch which seems to make it better for a while, before I go and spend a load of money on the wrong this does anyone know what it might be, tractor has now done 7.100 hours. see youtube...

farmingforum.co.uk

 

[yellowbelly]

The other place

Yeah, he's been looking there but 3155 seems to be a different arrangement to 2135.

 

[Combine Rescue]

With fastrax you can have dry or wet clutch.
What is written on transmission controller.
Or is even older than that?

 

[Farmer_Joe]

My mf did something like this when hot and it was accumulator replaced and it’s been much better not sure if your fastrack has them for clutch easy to check if it does mines was full of oil

 

[jd6820]

Ah 98/99 means it's an Autoshift (Dry clutch), worth renewing the fluid in the clutch system and bleeding the system to ensure no moisture or air present. Quite common for the booster cylinder to fail causing the symptoms you describe as do plates braking away from the clutch disk. But lets start with the basics...

1. Renew clutch fluid

2. Bleed clutch

3. If no better bypass the clutch booster on the side of the transmission. This will mean a heavy clutch pedal but will allow diagnosis of a faulty booster or drive plate.

4. If booster being bypassed doesn't solve the problem and the master cylinder is functioning correctly (firm pedal, feels heavy when applying clutch pedal) then time to split and examine clutch plate for missing paddles.

Note: the clutch system uses LHM (Light Hydraulic Mineral Oil) ISO VG15 - NOT DOT 4 as used in the braking system.

 

[yellowbelly]

Update

Thanks to all for the advice

@jd6820 gets the cigar

He hasn't had to resort to setting it on fire Fluid looked murky so a drain, fluid change and bleeding has fixed the problem

 

[jd6820]

Update

Thanks to all for the advice

@jd6820 gets the cigar

He hasn't had to resort to setting it on fire Fluid looked murky so a drain, fluid change and bleeding has fixed the problem

Thank you for the update, I'm sure this will help others see what the fault was and maybe learn from it. They're not bad tractors really, just take a little more effort to drive and look after at times than conventional tractors.

 

[T roberts]

Update

Thanks to all for the advice

@jd6820 gets the cigar

He hasn't had to resort to setting it on fire Fluid looked murky so a drain, fluid change and bleeding has fixed the problem

Hi, i have a 3185 with same issue, where is the clutch fluid pot?

 

[yellowbelly]

Sorry, no idea. It's our lad's tractor and he's farming at the other end of England to us.

Try tagging @jd6820 he sorted the problem for us.