The Forestry Forum

General Forestry => Forestry and Logging => Topic started by: Rjm74 on October 25, 2024, 12:22:31 PM

Title: Splitting 660D skidder
Post by: Rjm74 on October 25, 2024, 12:22:31 PM
Hello. I need to pull a Timberjack(JD) skidder apart at articulating joint. Everything is free but my backhoe won't pull it apart. I have driveshaft out.
Do the axle shafts have to be removed also?
Title: Re: Splitting 660D skidder
Post by: mudfarmer on October 25, 2024, 01:56:32 PM
Not familiar with the machine but don't see how the axle shafts would have anything to do with it? Got a picture or two to help us out?
Title: Re: Splitting 660D skidder
Post by: BargeMonkey on October 26, 2024, 03:06:45 AM
I've only ever split a 460, and towed a 460. I assume you've got 3 tab center pins ? If everything is removed, cylinders and centers, back shaft out, your fighting wear and gravity. Are you splitting it to do pins ? We split mine on a pretty level concrete floor, couple big floor Jack's and some cribbing, 2hr job, took longer to take the chains off. 
Title: Re: Splitting 660D skidder
Post by: kiko on October 27, 2024, 06:27:04 PM
Are you pulling the front away from the rear or the rear from the front?
Title: Re: Splitting 660D skidder
Post by: melezefarmer on October 28, 2024, 07:27:05 AM
Did you block up the front to prevent it from flopping to the side? If not, that adds alot of friction to the joints.
Title: Re: Splitting 660D skidder
Post by: teakwood on October 28, 2024, 07:59:20 AM
I only ever split my 540A once. be very careful with having both sides well supported. sometimes old bushings or rest of old bushings shift up or down and block the eye on the part which you need to pull away and makes them impossible to split , not sure if that explanation makes any sense to you. look into your pinhole and feel it with the fingers if any bushing slipped, or even start measuring thickness of eye plates.

i had a excavator bucket not come of once although the pin was removed, bushing shifted into the next piece. it's a pita to pull them back in position because no holding edge, i think we cut it out with a torch 
Title: Re: Splitting 660D skidder
Post by: Rjm74 on October 30, 2024, 09:08:23 AM
Quote from: BargeMonkey on October 26, 2024, 03:06:45 AMI've only ever split a 460, and towed a 460. I assume you've got 3 tab center pins ? If everything is removed, cylinders and centers, back shaft out, your fighting wear and gravity. Are you splitting it to do pins ? We split mine on a pretty level concrete floor, couple big floor Jack's and some cribbing, 2hr job, took longer to take the chains off.
Title: Re: Splitting 660D skidder
Post by: Rjm74 on October 30, 2024, 09:11:25 AM
I got it. I was angling the cab end up and down to try and compensate for the bent lower tab on rear section. When I pushed down on arch and pulled it popped right apart.
I'm splitting it to fix a broken off upper tab on the rear section, weld both steering clevis back on the rods and straighten the bent lower tab on rear
Thank you all though