|
![](/resource.ashx?u=95320) Rank: Advanced Member Groups: Member
Joined: 9/30/2003 Posts: 252 Location: Enfield, London, UK
|
I have had my CC8800 for a long time, replaced the pulleys! I now want to rig the crane but I am having trouble working out how to rig the rear frame with the double drum, is it one continuous line or two separate ones? Any photos or diagrams would be appreciated.
Tim Clamp
|
|
![](/resource.ashx?u=98921) Rank: Advanced Member Groups: Member
Joined: 10/7/2005 Posts: 2,495 Location: Shetland
|
Hi Tim, this is how I did my one. The drum with the black line goes up to the bridle in the second picture and the two silver lined drums are the main hook block lines. I'm hoping I did my one right but maybe some of the guys will confirm things. ![](http://i251.photobucket.com/albums/gg286/thorleif08/P1050673.jpg) ![](http://i251.photobucket.com/albums/gg286/thorleif08/P1050675.jpg) Winch(es) to back mast pulley and pendent lines. ![](http://i251.photobucket.com/albums/gg286/thorleif08/P1050671.jpg)
Scania V8. The best sounding truck in the world.
|
|
![](/resource.ashx?u=102941) Rank: Advanced Member Groups: Member
Joined: 9/22/2007 Posts: 5,860 Location: Louisville
|
On mine, each side of the drum has it's own line, I added the same length of string to both sides, reeved it, tied one end off on the drum, and the other on to the gantry.
Brandon my youtube channelMy Facebook Page
|
|
![](/resource.ashx?u=98921) Rank: Advanced Member Groups: Member
Joined: 10/7/2005 Posts: 2,495 Location: Shetland
|
Yeh, I forgot to say but I just did the same as Brandon and each side of the drum has it's own line. ![](http://i251.photobucket.com/albums/gg286/thorleif08/P1050676.jpg)
Scania V8. The best sounding truck in the world.
|
|
![](/resource.ashx?u=99630) Rank: Member Groups: Member
Joined: 11/27/2005 Posts: 47 Location: Canada
|
On the real machine it is actually two seperate hoist lines. I have tried doing it this way but because the model does not that have an equalizing pin on the bridle, it is next to impossible to keep the same amount of tension on both lines through the entire cycle of line. I changed it to one hoistline dead ending at each side of the double drum (like the LR 1750 if you have that one). Check out the photo. You can see both hoistlines dead end to the A-frame or (gantry) on the real machine.
|
|
Rank: Advanced Member Groups: Member
Joined: 3/6/2012 Posts: 206
|
I'm so glad someone asked this question. I was looking at the assembly instructions for the CC8800 and the reeveing of the ropes for this section. I knew there would be an issue after having some experience with the reeveing for the LR1750 and how it has a single loop. I would think the simplest solution would to be loop one side through the end point on the superstruce (A frame). Loop it to the other side's end point and back throught the pulleys and down to second drum. Play out all the rope to equalize the lengths and then spool the rope back onto both drums. The loop between the two sections should handle the unequal line lengths. The only downside would be the rigging would not be to design and it would noticable.
|
|
Rank: Advanced Member Groups: Member
Joined: 9/20/2008 Posts: 504 Location: gold coast downunder
|
Problems with 8800 just contact (michael@kbuilt.net)he does a compensating bridle for the a frame,I have it on mine,works a treat.
|
|
Rank: Advanced Member Groups: Member
Joined: 2/8/2006 Posts: 2,612 Location: Iowa
|
If I remember right (being that's an older model). There is a center hole at the bottom of that double drum. That is for getting the lines equil for both drums and all the sheives. You reave it backwards (for lack of a better word). You'll need clamps to hold the lines taught off the sheives once those are reived. Then you equil the line through the center hole in the double winch drum. You use enough line on the drum for one to two full raps around the drum (mostly for looks. You ALSO feed the line on the double drum from the inside (at the hole) to the outside of the drum and back in when filling. You can "fine adjust" the end lines if need be too.
Works best if all your sheives are at almost max working length when stringing too. Then draw the A frame down as you fill the winch.
|
|
![](/resource.ashx?u=103864) Rank: Advanced Member Groups: Member
Joined: 3/9/2012 Posts: 246 Location: Portsmouth, NH
|
I had the same issue with the two separate boom hoist lines on my 16000 model. I took the two lines that started in the center sheaves and dead ended on the outside sheaves, cut the glue from the outside sheaves, and re-reeved the two lines to go from the outer sheaves to the inner sheaves, where they are tied together. You can see the knot, but at least it works right!
The fundamental aim....is to do everything that is attempted in a first-class way." -Pierre S. Dupont
|
|
Guest |