CurSedVoyce
California Hillbilly
A 5:1 that can handle up to 5/8ths.Maybe you mean a HD z-rig.
Normally 1/2" is used.
You can add a z rig to a continuous puller set up or truck/equipment pull. Or a winch.
A 5:1 that can handle up to 5/8ths.Maybe you mean a HD z-rig.
I hear you, truly. I just wonder what kinds of forces I’m exerting. I’m sure it’s above 1000lbs but below 10000lbs. The lack of information makes me nervous ( maybe I should limit or cut out those situations where too much force could build)Still be a lot of variables, not really duplicable...and thus not very informative, perhaps.
That’s right!! Good call. I remember that video now I haven’t been able to find one with a Truck though. I could definitely add some mechanical advantage, but I would be nervous doing that without knowing what the truck is pulling. maybe if I dig deep enough, I can find somebody who did a load sell test with their one ton.If traction is an issue add mechanical advantage. August did a load cell pull test with his mini and found his pull was about equal to the weight of the machine before breaking traction on dirt. But that is tracks not tires so I’d suspect tractive force with tires would be significantly less.
And, you can anchor the truck to a tree or others secure it.If what you are doing with pulling is making you nervous, I'd consider that a bright red flag (or at least an orange one ). Do something different that doesn't make you nervous.
I have posted for a couple of decades here in the TH my considered opinion that a truck mounted winch is superior in every way to pulling directly with the truck. I still find it surprising that this very versatile and useful tool is so seldom in tree companies' arsenals.
In using a mounted winch, one can anchor the truck to remove all slippage from the equation. Then it's just a matter of knowing the pull you can generate, subtract some for angles and friction, factor in the breaking strength of the components of gear in use, allow for a safety margin...and pull away.
Pulling with any machine, tires or tracks, gets very fuzzy because of the unknowns of friction against the surface you are on.
As I noted above, Sean.And, you can anchor the truck to a tree or others secure it.
A parking brake is only for two tires.
When I used my truck as a retainer line anchor, I wedged the brake pedal with a cut-to-length round of wood with truck running.
Moving tires offer less traction than stationary ones. You are absolutely correct regarding the upward lift, and the fix.Would the force be limited by the tire traction equally in either case, driving (4wd) or bumper winch, not anchoring the truck from behind? Seems so. Cable angled up lifting front wheel traction seems the biggest gotcha, with a redirect removing that problem.
In the case that inspired this thread the nervousness comes in because I don’t want to snap a $300+ rope. No property damage imminent. Also a chance (at least in my mind) the branches laying on the rope fail to take it to the ground and the rope comes back at me and the truck.If what you are doing with pulling is making you nervous, I'd consider that a bright red flag (or at least an orange one ). Do something different that doesn't make you nervous.
I have posted for a couple of decades here in the TH my considered opinion that a truck mounted winch is superior in every way to pulling directly with the truck. I still find it surprising that this very versatile and useful tool is so seldom in tree companies' arsenals.
is your rope long enough to use it doubled over (in basket)?In the case that inspired this thread the nervousness comes in because I don’t want to snap a $300+ rope. No property damage imminent. Also a chance (at least in my mind) the branches laying on the rope fail to take it to the ground and the rope comes back at me and the truck.
I 100% agree with you about the winch and it’s on the list. I too am surprised they are used so little in the YouTube videos I watch.
If I have to replace that $300 rope, it’s that much longer I have to wait for the winch😉
That is a good idea but maybe not for this scenario as it had to be redirected. Although, another block could have taken care of the other leg of rope.is your rope long enough to use it doubled over (in basket)?
Length of the rope matters some, as well as anything else that can absorb shock (tree flexing, stump moving in the dirt.I need a big loadcell, without going into much detail I know I can get a 30ft running start in reverse with the bucket truck and not snap a doubled up 3/4" pelican bull rope, empty box, no chipper, foot to the floor till either the barberchaired oak came off the stump or the truck broke traction (I was gentle, then increasingly harder pulls and bumps till she moved, was really bad)
ill admit it was stupid, and the neighbor got a video of the barber chair too!
the recommended diameter rope is always "big enough and then some" IMO, if a 1/2" will maybe do it I always grab the 3/4", just safer that way
anyone wanna come out and play with a load cell with me?
Just get a device to measure the load on your rope, either a springy analog meter, or a digital one.In the case that inspired this thread the nervousness comes in because I don’t want to snap a $300+ rope. No property damage imminent. Also a chance (at least in my mind) the branches laying on the rope fail to take it to the ground and the rope comes back at me and the truck.
I 100% agree with you about the winch and it’s on the list. I too am surprised they are used so little in the YouTube videos I watch.
If I have to replace that $300 rope, it’s that much longer I have to wait for the winch😉
hadnt even considered that reallyLength of the rope matters some, as well as anything else that can absorb shock (tree flexing, stump moving in the dirt.
1000 ft/lbs as far as I know means an average of 1000lbs of force over a distance of 1 ft. ft/lb is energy, so if you change how the energy is transferred the energy transfer is the same, but the force and duration/distance change. 1000 ft/lb stopped in 1 inch of distance averages 12,000lbs. 1000ft/lb stopped over 5 feet of log flex averages 200lb of force.