The Forestry Forum

General Forestry => Forestry and Logging => Topic started by: ga jones on October 26, 2014, 09:01:53 PM

Title: Prentice 120 joystick
Post by: ga jones on October 26, 2014, 09:01:53 PM
Can anyone tell me why the control is oposite of a standard ISO control? The right stick you push it and the stick comes towards you. That's oposite of any other control I've ever ran! ISO ,SAE, case. I switched the hoses today I couldn't take it anymore.my lever control on the old 120 was the same way . We switched that as soon as we got it.
Title: Re: Prentice 120 joystick
Post by: Dave Shepard on October 26, 2014, 09:27:23 PM
I think it's a leftover from old clutch style cranes. You would pull all the many levers toward you to engage them.
Title: Re: Prentice 120 joystick
Post by: Maine logger88 on October 26, 2014, 09:29:25 PM
All loaders I have ever ran are that way. It doesn't bother me cause I ran loader long before I ever ran an excavator anyway lol.
Title: Re: Prentice 120 joystick
Post by: treeslayer2003 on October 26, 2014, 09:34:06 PM
yep, the old jonsered is like that...........a young guy got on her one day and said......yer control is backwards lol..........i never knew any better so i leave it alone.
Title: Re: Prentice 120 joystick
Post by: ga jones on October 26, 2014, 09:36:09 PM
It seems like it's not natural. To push the control away and have the stick coming at you.
Title: Re: Prentice 120 joystick
Post by: Maine logger88 on October 26, 2014, 09:37:36 PM
Slayer Your 275 is probably the same way isn't it? Once you get used too it it doesnt matter but if you like it the other way I shouldn't hurt too switch it I believe the pressures are the same either way. I do know something's you shouldn't switch tho unless the pressures are reset
Title: Re: Prentice 120 joystick
Post by: treeslayer2003 on October 26, 2014, 09:57:31 PM
Quote from: Maine logger88 on October 26, 2014, 09:37:36 PM
Slayer Your 275 is probably the same way isn't it? Once you get used too it it doesnt matter but if you like it the other way I shouldn't hurt too switch it I believe the pressures are the same either way. I do know something's you shouldn't switch tho unless the pressures are reset
it has levers.........i ain't run it enough to know yet......ain't had time to change oil filters grease.......it will go to the next job.
Title: Re: Prentice 120 joystick
Post by: Maine logger88 on October 26, 2014, 10:01:23 PM
All the 4 levers I have run is forward for down back for up aswell. Come too think of it a bucket loader is the same way
Title: Re: Prentice 120 joystick
Post by: treeslayer2003 on October 26, 2014, 10:03:34 PM
Quote from: Maine logger88 on October 26, 2014, 10:01:23 PM
All the 4 levers I have run is forward for down back for up aswell. Come too think of it a bucket loader is the same way
yea, now that i think of it your right.......see it seems natural to me, ran wheel loaders way before knuckle booms.

5 levers, live heel is in the middle  :)
Title: Re: Prentice 120 joystick
Post by: lopet on October 26, 2014, 10:11:49 PM
Some of the older backhoes had the stick going the opposite way too.  I guess if somebody grew up with that he doesn't wanna change. But for somebody who's not used to that it doesn't make sense.
Title: Re: Prentice 120 joystick
Post by: barbender on October 27, 2014, 12:15:26 AM
I about lost my mind learning to run log loaders after growing up around backhoes and excavators :)
Title: Re: Prentice 120 joystick
Post by: Woodhauler on October 27, 2014, 05:55:08 AM
Quote from: ga jones on October 26, 2014, 09:01:53 PM
Can anyone tell me why the control is oposite of a standard ISO control? The right stick you push it and the stick comes towards you. That's oposite of any other control I've ever ran! ISO ,SAE, case. I switched the hoses today I couldn't take it anymore.my lever control on the old 120 was the same way . We switched that as soon as we got it.
I've owned prentice, serco,rotobec and run barko and hood loaders and they all run that way! Only thing that i have seen different is the bucket rotation.This is the same on truck mount and tree lenght loaders!
Title: Re: Prentice 120 joystick
Post by: ga jones on October 27, 2014, 06:42:59 AM
So it's a log loader thing. No reason for it?
Title: Re: Prentice 120 joystick
Post by: jwilly3879 on October 27, 2014, 07:16:01 AM
I've only run backhoes and excavators occasionally so the first few minutes are pretty interesting. I am always bringing the stick in when I want it to go out. It takes awhile to unlearn the muscle memory from the loader. On the old Husky loader having the levers work that way let you run the boom and stick with one hand.
Title: Re: Prentice 120 joystick
Post by: Corley5 on October 27, 2014, 08:45:19 AM
I switched the hoses around on the valve bank on both the Iron Mule and the C4 so the stick goes out when you push the lever away from you  ;) ;D  That was easier than retraining myself  :)
Title: Re: Prentice 120 joystick
Post by: tj240 on October 27, 2014, 09:30:05 PM
like they all said its a log loader thing.  my last job i ran excavators and log loaders, took a minute on the excavator but a dirt bucket means hoe control a log grapple ,loader control. our timbco operator switched it to log loader cause that is what he was used to. its a simple fix just switch the hoses on that control no pressure change. good luck
Title: Re: Prentice 120 joystick
Post by: barbender on October 28, 2014, 08:29:19 PM
Ponsse forwarders have ISO pattern (excavator) controls, but the processor I ran had the backwards jib like a log loader ???
Title: Re: Prentice 120 joystick
Post by: Corley5 on October 28, 2014, 08:42:45 PM
My 133 Fabtek operates like an excavator.  Push the stick away from you and the jib goes out.  I think  ???  Now I'm going to have pay attention tomorrow  :D  If somebody asks what the buttons on the sticks do I have to think about it  ;D ;)
Title: Re: Prentice 120 joystick
Post by: BargeMonkey on October 28, 2014, 11:27:25 PM
Dont ask me the exact term "iso" and which ever but its always been called "cat" and "deere" around here, deere controls are away when you push, everything we have - 3 excavators and the 3 loaders - log truck, forwarder and landing loader are all deere. I dont know on harvesters but the newer excavator's all have a lever to switch the patterns.
Title: Re: Prentice 120 joystick
Post by: Dave Shepard on October 29, 2014, 10:30:54 AM
ISO-CAT, SAE-Deere.
Title: Re: Prentice 120 joystick
Post by: BargeMonkey on October 29, 2014, 11:58:48 AM
Quote from: Dave Shepard on October 29, 2014, 10:30:54 AM
ISO-CAT, SAE-Deere.
We have another term for the ISO-Cat pattern.  ;)   I guess its kind of a regional thing, down here the sae-deere is 99% of everything we see.
Title: Re: Prentice 120 joystick
Post by: Maine logger88 on October 29, 2014, 05:58:51 PM
Ya it probably all depends on the dealers in the area back in the day around here it's almost all cat controls.
Title: Re: Prentice 120 joystick
Post by: barbender on October 29, 2014, 09:14:01 PM
The difference between the ISO and SAE is the main and jib booms are opposite. Log loaders are something altogether different. The ones I've ran (Serco) had  foot swing, left hand left/right opens/closes the grapple, in/out runs the jib away/towards, right hand right/left rotates grapple, in/out runs the main boom up/down. I might have the main and jib booms opposite, I can't remember ::) One of the first things you will do when learning, if coming from an excavator, is drop a whole grapple of wood when you try to swing. I don't think I've ever had my tongue sticking out the side of my mouth so far as when learning to run a center mount loader on a rail trailer. You're trying to balance that first row of wood on a trailer that is 4' wide, dropping wood and it rolls underneath the trailer. Maddening I say :D
Title: Re: Prentice 120 joystick
Post by: BargeMonkey on October 29, 2014, 09:52:57 PM
 The guy I bought my first fellerbuncher from decided to show me "how to run it". Good operator, but... climbed on the hillside, reached way up and grabbed a decent pine tree, but didnt quite remember that the swing was on the floor... as he kept grabbing the left joystick. Over she went... ive got a picture of 13' of track standing straight up, he was so lucky he didnt get killed, when he knew he was going he wedged himself into the seat and front cab glass. Note, I had just..just... finished paying for the machine, and this happened in front of my father, and his father. It took a 330C and a 325C cat excavator to stand her back up, all it hurt was the front window and the door. Ive gotta find that picture.  :D
Title: Re: Prentice 120 joystick
Post by: barbender on October 31, 2014, 01:27:25 PM
"Hey ya'all watch this!" :D
Title: Re: Prentice 120 joystick
Post by: BargeMonkey on October 31, 2014, 05:31:37 PM
Quote from: barbender on October 31, 2014, 01:27:25 PM
"Hey ya'all watch this!" :D
Basically about like that. I wasnt too happy lets say that. Had saved every nickle I could find to buy that machine. Somewhere we have a photo book of all the flopped machines we have rolled over, couple skidders, couple forwarders. Had to take the 850B to get a 640D once, she was 4 wheels up. Watched a guy roll a 518 on a flat header one day, pushing logs like a fool. Spent alot of days in the old R model log truck as a kid.
Title: Re: Prentice 120 joystick
Post by: barbender on October 31, 2014, 07:34:57 PM
I would have been tempted to take it out of his hide >:(  "Are you hurt? POW! Now you are!" ;) I wouldn't really, but that sentiment would be there.