View Single Post
  #1   Report Post  
Posted to rec.crafts.metalworking
Gunner Asch[_6_] Gunner Asch[_6_] is offline
external usenet poster
 
Posts: 10,399
Default Forklift is running...kinda sorta

My Baker-Linde forklift got a carby rebuild this evening and it now
idles

However..the electronic throttle still isnt working.

On this particular Linde forkllift (B30-PL)...hydrostatic
drive...there is an electonic box that used to be bolted under the
dash. I loaned the forklift to a guy, who kicked it off the
firewall..and let rain fill it up. DOA

This forklift doesnt have a gas pedal..it has a lever on the dash.
You set it for the RPM you want..and then the "box" will pull a big
solenoid (12vt) which pulls on the throttle linkage and no matter what
load you put on or take off...it keeps it at that rpm. Cruise control
so to speak. If you are running on the street and want to go
faster...move the lever and it speeds up. Take your foot off the pedal
(reverse, stop and forward)..three of them in the middle of the
drivers position on the floorboard.

I dont know how the box senses the RPM. I cant find a maint manual
for this lift truck anywhere. Guy offered to sell me one for $300.
That aint happening anything this year....

All I need is a wiring diagram of that part of the control system. A
diagram of the inside of the box would be damned nice too..maybe I can
repair the guts.

Ive posted for this "box" in all the forklift forums..with only one
response and the box he wanted to sell me for $450 was definately the
wrong one.

This is what my box looks like

https://picasaweb.google.com/1040422...98932166676898

https://picasaweb.google.com/1040422...98933889507986

Other correspondence...

http://www.forkliftaction.com/forum/...asp?trid=11621

Several years ago, I located one of these "boxes" in a forklift
wrecking yard in IRRC..Georgia and they wanted $125 for it. Ive since
lost all the data, all the communications records etc etc with the
source. That stroke still plays hell with my memory now and then.
I thought Id kept copies of our emails..but...cant find em anywhere.
Damit!!


Now does anyone have any suggestions? All that Im left with...is
putting a gas pedal on the floor board..or a potentiometer to control
that big solenoid. The gas pedal will be as handy as a third thumb
as the 3 pedals are controlled with both feet..and using a
potentiometer will be easier to control..but will be an utter bitch to
use as it will be simply a hand controlled throttle that will have to
be moved as often as a gas pedal.

Ive got to move that cargo container this coming weekend, one way or
another, and Ive got to move a ****load of machinery out of the way
with this forklift, plus pull out a 22 ft motorhome with flat tires
(some of them) and then put in that 5500 lbs cargo container with a
3000 lb forklift, with little help. Ive got pipe for rollers lined
up...sigh..but having to jocky the throttle controls for this lift
truck is simply going to be an additional pain in the ass.

Any suggestions would be greatly! appreciated!!

What value pot would I use to move a 12volt device from 0-12volts at
about .5 amp? Brain lock.

Where do I find a cheap self mounting throttle pedal and cable? Ive
browsed all the places I could think of..and they have $200 and up
stock car stuff..and I cant afford that.

Im running out of time and I have to go to LA in the morning


Gunner

--
"You guess the truth hurts?

Really?

"Hurt" aint the word.

For Liberals, the truth is like salt to a slug.
Sunlight to a vampire.
RaidŽ to a cockroach.
Sheriff Brody to a shark
Bush to a Liberal

The truth doesn't just hurt. It's painful, like a red hot poker shoved
up their ass. Like sliding down a hundred foot razor blade using their
dick as a brake.

They HATE the truth."