PelJob EB12 Wobbly Boom/Arm

[Puffster]

Its old but it works well enough but trying to tidy it up a bit more still but I don't have a parts manual and I don't know diggers that well.

The boom comes up from the digger and the arm goes to the bucket. Whats the bit that joins boom & arm together called and what do I need to do to get it not wobbling from side to side? Is it just a matter of new bearings and if so, where do I find them or indeed the size I should be getting? I can't find anything on the web :(

[Muz]

That bits the dipper ... and its held in place by two forks at the end of the boom, some of those old pel jobs had a nut on the main pin you could tighten ? but it will need pinned and bushed to make a proper job. All the bits are easily available from many suppliers. To make it easier they number all the pivot points for you to order your spares

[v8druid]

try Evans and Reid for bits

[Puffster]

That bits the dipper ... and its held in place by two forks at the end of the boom, some of those old pel jobs had a nut on the main pin you could tighten ? but it will need pinned and bushed to make a proper job. All the bits are easily available from many suppliers. To make it easier they number all the pivot points for you to order your spares

Ah - thank you. I've seen the nut.

- - - Updated - - -

try Evans and Reid for bits

Yes, will do, got the track rollers from there

[Puffster]

Evans & Reid gave me a nice little diagram

I went and shook everything and anything attached to the dipper arm basically needs replacing - that's 7 sets

The boom end where it attaches to the rest of the digger (kingpin?) is remarkably stable, so happy for that.

[v8druid]

Evans & Reid gave me a nice little diagram

I went and shook everything and anything attached to the dipper arm basically needs replacing - that's 7 sets

The boom end where it attaches to the rest of the digger (kingpin?) is remarkably stable, so happy for that.

oh dear ... sounds expensive

[Puffster]

Actually not too bad...

So once I've got them/fitted, I still have the following to do:

Fuel tank to pump leak - I've replaced the knackered jubilee clip but its still leaking, so will get a new fuel pipe & try that. Don't think its the pump.

Valve slices - quite a bit of wear in some of them (leaking) and the left-hand track still won't go on its own, though will with right-hand going or if up in the air. I have a set from an EB12.4 which are not the same but hoping that we can split and use some slices to replace the dodgy ones.

Slew ring has quite a bit of play but may leave that for the time being.

Minor oil leak from the bottom of the engine despite a new sump gasket. So needs tracing/fixing.


Apart from that, its all pretty good. Still looks old/rusted/tatty and could do with a paint job maybe if I can be bothered. Engine is a bit smoky once started but starts on the nose from cold with 7 or 8 seconds pre-heat. Sort those last bits out and its still worth £1000/£1500 more than I've put into it.