Wanted Help jcb 801.4

[Monkeybusiness]

North Wales

I’ve got a brilliant hydraulic guy who lives in nantwich if you are ever over this way.

 

[blade 582]

Does anyone know what part number the ram is ?

 

[Gecko]

blade 582:
Does anyone know what part number the ram is ?

Using only the information provided in this thread, it took me 90 seconds to find the part number for the dipper cylinder.
If you want me to share, you can start with a groveling appology for your whiney "the world owes me" post.

Apparently JCB simply don't want you working on the cylinder as parts 10~17 are listed as "non serviced part". (no, it wouldn't stop me repairing it, but the dowel's main purpose seems to be to make life difficult).
Edit: I missunderstood the parts list - the seals arn't availible individually, but a full kit (including dowel #17) is listed

 

[V8Druid]

Using only the information provided in this thread, it took me 90 seconds to find the part number for the dipper cylinder.
If you want me to share, you can start with a groveling appology for your whiney "the world owes me" post.

Apparently JCB simply don't want you working on the cylinder as parts 10~17 are listed as non-sevicible. (no, it wouldn't stop me repairing it, but the dowel's main purpose seems to be to make life difficult).


View attachment 66370

miserable bas**rds

 

[Gecko]

miserable bas**rds

Talk about "spiking the barrel".

 

[V8Druid]

Talk about "spiking the barrel".

's a fact --tw*ts

 

[Gecko]

Apparently JCB simply don't want you working on the cylinder as parts 10~17 are listed as non-sevicible. (no, it wouldn't stop me repairing it, but the dowel's main purpose seems to be to make life difficult).

For my own amusment, I took another look at that, and I didn't get it quite right.
The individual seals are listed as "None serviced part", there is a full kit listed.

There is no details on the dowel (Pt. 17), but working backwards, the same part number is used in a similar ram, but to lock the piston.
This seems a little contradictory as it's the seals (on a 3cx) that keep the dowel in place and not any spring like a roll pin.
"If" the (original) dowel is the same style as a 3cx, it's made of hardened steel with metric thread down the centre.
The OP describes:

it's a slotted split dowel,

suggesting it's not how it left the factory.

 

[Lancs Lad]

For my own amusment, I took another look at that, and I didn't get it quite right.
The individual seals are listed as "None serviced part", there is a full kit listed.

There is no details on the dowel (Pt. 17), but working backwards, the same part number is used in a similar ram, but to lock the piston.
This seems a little contradictory as it's the seals (on a 3cx) that keep the dowel in place and not any spring like a roll pin.
"If" the (original) dowel is the same style as a 3cx, it's made of hardened steel with metric thread down the centre.
The OP describes:

suggesting it's not how it left the factory.

I've a feeling the op may have bolted

 

[Bri963]

For my own amusment, I took another look at that, and I didn't get it quite right.
The individual seals are listed as "None serviced part", there is a full kit listed.

There is no details on the dowel (Pt. 17), but working backwards, the same part number is used in a similar ram, but to lock the piston.
This seems a little contradictory as it's the seals (on a 3cx) that keep the dowel in place and not any spring like a roll pin.
"If" the (original) dowel is the same style as a 3cx, it's made of hardened steel with metric thread down the centre.
The OP describes:

suggesting it's not how it left the factory.

I can’t say I’ve ever seen a ram put together quite like that. I’d expect no. 17 to be a grub screw. It’s not usual engineering practice to put a dowel in a serviceable item like that. Then again, it’s a JCB.

 

[Gecko]

I can’t say I’ve ever seen a ram put together quite like that.

I'm guessing you've seen more than your share of rams, so I'm reassured this is not common practice.
What kind of sadist thought that up?

 

[Bri963]

I'm guessing you've seen more than your share of rams, so I'm reassured this is not common practice.
What kind of sadist thought that up?

I don’t do an awful lot on JCB’s but when I do, their parts drawings sometimes leave a bit to be desired. It would be interesting to see a new no.17 before it’s fitted. Engineers do come up with some pretty dim ideas at times. 500-hr greasing intervals on bucket pins for one.

Regarding the OP, we shouldn’t be too hard. We don’t get too many seven-year-olds with their own machine posting on here.

 

[hiluxman]

I had similar with a steering ram on a terex dumper....conclusion was I sent it to ram specialist and it came back a day later all resealed.