Kboom unloading logs from flat bed

Effer does not want to rear mount cranes. They made it seem as if it was no a good option on a 655. Nor do they want to mount on a cab over truck.
 
[ QUOTE ]
All great points brought up by everyone. I am leaning towards a dump. Allmark, why do they need to make these trucks so long? Is a 20' bed really necessary dump or non dump, regardless? I have attached a picture of the truck they want to build for me. Two tag axles. I see some of you have one, I want a short as truck as possible but want the payload to haul.

Tried to attach a pic to show the truck, but cant get it to work...It has a 20' flat bed and two tag axles... which is super long. I wish ALL options were presented to me and this would be easier in deciding. The salesman spec'd the truck out and I now have to make the adjustments and or see what changes can be made.

[/ QUOTE ]

I've noticed the city garbage trucks around here.....built for hauling a heavy load while at the same time short coupled and very maneuverable. The ones around here have the cab almost in front of the front axle, so a real tight turn radius. Every time I see one (a lot) I mentally remove the garbage bin and think what a good base for a K-boom it could be.
 
One of the many reasons for purchasing a kboom is to become more efficient. To get more done with one less truck(log truck) and one less employee/driver. I see some of you mention I should run a seperate truck for logs. I dont feel that is necessary unless I need extra hauling capacity and in that case the log truck is at the yard ready only when we run out of room. It appears to me these trucks can haul a full load just fine. http://www.allmarktreeservices.com/images/crane_service/crane_service_21.jpg
http://www.treebuzz.com/forum/images/upload/54054-bigcottonwood-oldcrane.jpg
 
[ QUOTE ]
Effer does not want to rear mount cranes. They made it seem as if it was no a good option on a 655. Nor do they want to mount on a cab over truck.

[/ QUOTE ]

they don't want to cabmount one on a cabover because the front axle is too close to provide good stablity, and the only reason they don't want to rearmount it is because they normally don't, and they don't understand counterweight as well as real crane guys do.
 
[ QUOTE ]
One of the many reasons for purchasing a kboom is to become more efficient. To get more done with one less truck(log truck) and one less employee/driver. I see some of you mention I should run a seperate truck for logs. I dont feel that is necessary unless I need extra hauling capacity and in that case the log truck is at the yard ready only when we run out of room. It appears to me these trucks can haul a full load just fine. http://www.allmarktreeservices.com/images/crane_service/crane_service_21.jpg
http://www.treebuzz.com/forum/images/upload/54054-bigcottonwood-oldcrane.jpg

[/ QUOTE ]

They do!!!
 

Attachments

  • 376568-IMG-20130212-00165.webp
    376568-IMG-20130212-00165.webp
    429.9 KB · Views: 86
[ QUOTE ]
buy a grapple truck and let it get the heck beat out of it hauling debris. keep the crane nice, short, and rear mounted.....

[/ QUOTE ]

I think you summed up the way Davidj and I think. I also understand that the whole grapple truck thing / no chipper seems to be not easily acceptable by the masses. Most people think you mean a separate truck that only hauls logs which adds a another truck and driver. What we mean is eliminate the chipper, chip truck and log truck and just run a grapple.

If I didn't intend to go the grapple truck route I would probably put a dump bed on. Especially if I didn't have a grapple truck to unload it with. Unloading logs from a flat bed with the Kboom would be painfully slow.

I pushed very hard to Rearmount the 655 when we bought / built it. They pushed very hard to mount it behind the cab. It was explained to me that if the unit was rearmounted the truck would not be stable in certain quadrants. They showed me drawings with it rearmounted and explained that in certain quadrants they would have to program the computer to not allow the crane to fully extend or go fully horizontal. They were willing to rearmount if I insisted, but after discussion I felt like it was a bad idea.

I have had the 655 for nearly two years. I am very happy with its capability and am happy with the set up. I don't wish ours was different.

It would be my guess that the load you see in Mike Poor's picture is overweight... I could be wrong.
 
A while ago I found this study which was done by the Minneapolis Park & Rec Board. MPRB is where the Forestry Department is found.

They have gotten rid of chippers and gone to using grapple loaders. There seems to be compelling reasons to make the change.
 

Attachments

[ QUOTE ]
[ QUOTE ]
buy a grapple truck and let it get the heck beat out of it hauling debris. keep the crane nice, short, and rear mounted.....

[/ QUOTE ]

I pushed very hard to Rearmount the 655 when we bought / built it. They pushed very hard to mount it behind the cab. It was explained to me that if the unit was rearmounted the truck would not be stable in certain quadrants. They showed me drawings with it rearmounted and explained that in certain quadrants they would have to program the computer to not allow the crane to fully extend or go fully horizontal. They were willing to rearmount if I insisted, but after discussion I felt like it was a bad idea.


[/ QUOTE ]

My dealer did the same thing, i was there the day they load tested it and they explained to me that they were testing to see where the needed to program the quadrants on the computer for derating. i watched the test with a couple of guys from their shop and there was points during the test when they were saying stuff like "wow look at that usually when he swings over there theres 2 outrigges 3' in the air, thats imperssive!"

when they were done they told me it was the most stable truck they ever built and I know the reason is because its rearmounted inspite of what they told me before building it.
 
The picture of my truck with the wood is over weight without a permit. The kbooms can be rear mounted but you would need to use a different style outrigger to do that or put outriggers off the rear to be able to effectively use it. They understand counterweight quite well and use it on several different scenarios. The truck that was in the tci show had counterweight on it.
When you mount the crane behind the axle you would need more counter weight than if it was over or in front of the axle. this is because when it is behind the axle the axle becomes a fulcrum point.
 
[ QUOTE ]
A while ago I found this study which was done by the Minneapolis Park & Rec Board. MPRB is where the Forestry Department is found.

They have gotten rid of chippers and gone to using grapple loaders. There seems to be compelling reasons to make the change.

[/ QUOTE ]

Tom that study is impressive.
 
[ QUOTE ]
Not what I meant about counterweight, I meant that on a rear mount when you reach over the rear you have the entire weight of the truck as counterweight, they don't understand that.

[/ QUOTE ]

What a strange assumption to make. How is it you know "they don't understand"? And who is "they"?
 
My 2 cents.....get the dump bed or you will have to add weight to the sub frame for stability. When I had the 55tm built I overestimated the weight of the steel bed and hoist (that I was transferring from my first 1993 kboom to the 55tm) there wasn't enough weight when the truck was finished. In some of my old photos you'll see a few logs in the bed when I'm making huge picks over the front at full reach.....(the few logs were for counterweight) the dump bed I have has nice chip tops (which I don't use often enough to be worth buying) it bums me out that they quit making the stabilizer setup I have on the 175 tm (it's rear mount, light, extremely stable 360 degrees.....even when the stabilizer beams are only halfway extended) YOU WILL LOVE THE THING NO MATTER WHAT YA' GET :)
 
On a behind the cab mount no matter how much you build up the sub frame you are limited to the strength of the truck frame rails. (mine has been going strong for a decade with not the slightest issue) but this is another advantage to rear mount! There are disadvantages too. (with a front mount you lose a bit of reach......but you don't have the cab in the way when landing picks. For example sometimes when I pull the 55tm into a driveway that has trees and obstacles at the street end I have to land the picks right at the tail end of the log bed. If it were a rear mount, the cab would be in the way :) conversely....there several tight spots where the 175tm rear mount actually fits much better than the smaller 55tm front mount :p
 
Thank you for everyones help. Our new 2014 655 6+6s+2 has been shipped from Italy and our 2014 Mack Granite is being delivered to Smith Truck Crane this week. Truck will be equipped with 16ft dump body and one pusher axle. If I can figure out how to post pics I will.
 
[ QUOTE ]
Thank you for everyones help. Our new 2014 655 6+6s+2 has been shipped from Italy and our 2014 Mack Granite is being delivered to Smith Truck Crane this week. Truck will be equipped with 16ft dump body and one pusher axle. If I can figure out how to post pics I will.

[/ QUOTE ]

I can post the pictures up if you want to email them to me?
urbantc@icloud.com
 
You must log in or register to reply here.

New threads New posts

Back
Top Bottom