Free Lift Cables

[WHX?? 54,958]

50 minutes ago, ACman said:

as I’m sure you have racked your brain thinking of solutions . 

Ha I'm flying by the seat of my pants here! 

But yes a guy could just buy the ends Ineed posted and take them to a shop for crimping. 

The trouble with Lowell is he provides all the other items a guy doesn't need. 

I asked him once if he wanted the big bag of ends and sheaths I have accumulated over the years. Recycle ya know. Silly me ... he has tons of them already. 

Here's what happens to the ferules. Perhaps over crimped? It doesn't pass the SS magnet test. 

[Handy Don 15,934]

4 hours ago, WHX?? said:

I'm lost Truck ... I would think it would greatly decrease the force required? Kinda like a $natch block for a winch.

 

Two different setups. The “winch” here is the tractor’s rock shaft, anchored to the tractor at its pivot and pulling when rotated. 

1. Winch doing the pulling is anchored,  sn_tch block attached to load being moved, cable end anchored (along with winch) 

Load is spread across the two legs of cable between the winch and the sn_tch block. Each cable carries half the load; winch pulling on one cable against its half of the load winds two inches of cable to move the load one inch. 

 

2. Winch doing the pulling is attached to the sn_tch block, one cable end attached to load being moved, one cable end anchored. 

Load is spread across the two legs of the cable: sn_tch block to load and sn_tch block to anchor. Each cable carries half the load. Winch pulling on sn_tch block carries the full load of both cables and moves one inch to move the load two inches (since moving the block can only move the load-attached cable, not the one anchored). 

 

Note: complete spelling of sn_tch in this context is a prohibited word in the website software’s dictionary

Edited 8 hours ago by Handy Don

[Lee1977 7,552]

I have used alumiumn hex on cables drilled and tapped to hold cable with a set screw. They were used for control cables on gocarts, don't know if they would work in that heavy appaction. 

A friend silver solder the hand brake cable on my Toyota when I could not fine a replacement.  Don't have any ideal what silver solder cost now. I do know the tempture isn't as high as brass.

I tried brass and had the same results as 953 nut.

 

[JoeM 9,618]

5 hours ago, Handy Don said:

What effect did that have on the implements being lifted?

when I used the box scraper it was pretty long and lifted well off the ground not to sure it would work with a tiller.

[AlexR 2,591]

6 hours ago, WHX?? said:

 The trouble with Lowell is he provides all the other items a guy doesn't need. 

I asked him once if he wanted the big bag of ends and sheaths I have accumulated over the years. Recycle ya know. Silly me ... he has tons of them already.

I actually just ordered one of those kits from him because I needed all that other stuff. But yeah I don't know why he wouldn't just offer a crimped cable by itself, for those people that just need a replacement cable. 

Edited 2 hours ago by AlexR

[8ntruck 8,602]

Thanks @Handy Don for the explanation.  

 

I'll add my version:

 

A pully is basically a force redirector - it just 'bends' the force in the cable into another direction, but does not change the load is carrying.  How the block holding the pully and how the cable are loaded and anchored determines how the forces are distributed.

 

Assuming that the lift handle is attached to the pulley and one end of the cable is attached to the tractor frame and the other end of the cable is attached to whatever load is on the hitch after running over the pulley.  This means that the pulley in this application bends the cable 180 degrees back into the direction it came from.  This loads the pulley with the load from the hitch and the cable anchoring force from the rear frame of the tractor.  You have 2 cable loads going to the back of the tractor, which will require the lifting force towards the front of the tractor to be at least twice the load on the hitch cable.