Fault code on GM Arborist 150 help.

[Jase hutch]

2 hours ago, Mick Dempsey said:

Well suck me dry and call me Dusty! It worked! I can only imagine the mechanic played with it when finding the other fault.

Thanks to all for your help.

I I can just improve the fork crushing power a bit we might have a chipper on out hands!

Mick , is the spring on the moving roller tight enough  ? Does it snap back if you try to pull the carriage across by hand or does it feel elastic  ?

[Mick Dempsey]

53 minutes ago, Jase hutch said:

Mick , is the spring on the moving roller tight enough  ? Does it snap back if you try to pull the carriage across by hand or does it feel elastic  ?

I have tried that, no difference, I think the rollers could use a touch up with a dremmel.

I did that to a GM220 and it transformed it.

Anyway, it functions well enough for the little trim jobs for the moment so I’m happy.

Edited January 30, 2022 by Mick Dempsey

[Mick Dempsey]

Just a little update.

I gave the rollers a bit of a touch up with a flappy disc, nothing too drastic and it suddenly chips, pulls and crushes like it did the day it left the factory!

As good as my old TW150 which is all I was after. 
So problems mostly ironed out and a happy camper!

[PeteB]

Another top tip on older chippers, check the hydraulic pressure, and check the blow off value. Astounding how much pleasure a correct blow off is!

[Mick Dempsey]

Anyone can tell me what hydraulic oil to use? could do with a top up.

[lux]

Anyone can tell me what hydraulic oil to use? could do with a top up.

iso 46 I Should think.

[Mick Dempsey]

Thought so too, got plenty of that, so I’ll use that.

[Jase hutch]

They leave the factory with 32 grade but 46 is fine.

Where's the oil leaked from ?

[Mick Dempsey]

More fine tuning….

The top of the hopper just before the feed rollers has bowed upwards and the weld was failing. Due I’m sure to the previous owners employees ramming oversize wood in, still, a surprising weak point. 
This was making the infeed troublesome so needed sorting. 
We cut out a section and welded a new piece in. 
Question. 
I discovered the funny bit to the left of the non static feed roller had broken it’s mounting and was moving loosely. 
I took it out (see second to last picture)

 iirc you can use the machine quite happily without it, any owners experience of this?

Edited April 29, 2022 by Mick Dempsey

[slack ma girdle]

2 hours ago, Mick Dempsey said:

More fine tuning….

The top of the hopper just before the feed rollers has bowed upwards and the weld was failing. Due I’m sure to the previous owners employees ramming oversize wood in, still, a surprising weak point. 
This was making the infeed troublesome so needed sorting. 
We cut out a section and welded a new piece in. 
Question. 
I discovered the funny bit to the left of the non static feed roller had broken it’s mounting and was moving loosely. 
I took it out (see second to last picture)

 iirc you can use the machine quite happily without it, any owners experience of this?

The hopper on the 130 is the same. I just bent it back with a hammer  and punch,  and filled in the gap with weld. It has lasted 3 years so far.

Greenmech need to produce a hopper with a strip of much thicker steel .