I've gone and done it :)

[njc110381]

I wondered who snapped that one up so quickly! Yet another nice little U900 that someone else has got... But then you've been looking for 12 years so that beats me!

 

Thanks for posting the pictures. It's great to see an old truck working.

[gensetsteve]

Been playing around with the mog trying different trailers and see what suits.

The tandem axle was filled up heaped and it seemed like there was quite alot of weight on the back end but there would of only been 2-3 tonne of chip on. The other pics was the little trailer loaded with stumps and crap but about the same weight on as the chip. The little trailer towed miles better, didn't seem as heavy on the back end i thought the extra axle would have balanced it out abit. What trailers do you other u900 owners run?

[ATTACH]138092[/ATTACH]

[ATTACH]138093[/ATTACH]

 

I had a similar mog bit smaller with 60hp which after 40 years was probably more like 40hp. Had a job to pull itself up hills let alone a trailer The 90 hp should be much better but that big trailer looks well made and heavy. Did it throw the mog about a bit or just struggle on power.

[treedweller]

No it didn't boss the mog about it just felt abit lacking in power but having said that i've mastered using the cascade as a splitter now so ive bridged the gap between 5th and 6th when towing. Im having a trailer built out of a vacum tanker that tips. The axles are getting moved towards the middle of the trailer. Its really low slung and on commercial axles too. Going to make it modular so I can add side panels or take away and also take bolsters. Lad up the road has a fmv with rotator and grab I thinking of mounting up front but it dosn't have much reach at all. Ok for loading timber but no good for lifting stem sections down. The mog will def be getting the pump tuned to around 125 hp though thats a given.

[treedweller]

Right people chipbox is on and will be boarded out with glassenite wagon body today. I also bought a tp760 chipper and brought it home yesterday. I put it on the mog and was a bit stumped really. At first i put it in 540rpm and the feed rollers where hardly moving so we sacked that off and put it in 1000rpm. We ran the mog at 1500rpm and it chipped and didn't lose rpm much but it didn't feel right so we upped it to 2000rpm and tried again still ok but not great. So we tried again at 2250rpm and it sounded better and tried it on a 5" bit of willow which it chipped fine but the it was only blowing the chips about 8-10ft. the chips where nice and square/clean cut so the blades are sharp and setup correct but i got the feeling that it was performing like it was in 540 not 1000. I did a bit of reading up on the web and i found that the om352 engined mogs need to be running at 2500rpm to achieve 1000rpm on the pto!!?? Is this right as it feels like the mog is screaming? What do you guy's run your u900/u1100's at to make them chip right.

[treedweller]

Thought i'd ring vos to confirm before trying again and they confirmed that it needs to be running at 2450-2500rpm to get 1000rpm out the shaft!! Think i'll have to buy shares in shell haha

[Tom D]

With most tractors pto revs will be towards the upper end of the rev scale as this is gererally where the peak power is. My valtra revs to 2350, pto is at 2100. for light duties such as a log splitter, saw bench you could run at 1000 speed but at low revs to give 3-500 revs at the pto shaft. But chipping is not light duty and will need full power unless you have a 200hp mog and an 8" chipper.

[aspenarb]

Thought i'd ring vos to confirm before trying again and they confirmed that it needs to be running at 2450-2500rpm to get 1000rpm out the shaft!! Think i'll have to buy shares in shell haha

 

Yes this is right. You need the revs up to get the hydraulics to work the rollers properly. You also need to watch the amount of dust and chip that makes it to the front of the Mog while working as it blocks the rad. You are in the wrong place to monitor the temp.This has cost us two engines over the last 25 years.

 

Bob

[Ollywood]

She's a ripper !!! V v v jealous !!! One day !!

[Stephen Blair]

Is it definitely in 1000 speed?

My old Mogs rev counter didn't work, I just did it by ear. Once the new bigger engine was fitted it was a diferent machine. Keep an eye out for a bigger newer engine would be my advice.

[njc110381]

What engine did you fit to it?