Hui Coukd you send me the manual als well
Thanks a lot

[email address removed]

I Would also like to have the Manual.

if its possible send it to Corneliusholzwarth[a]gmx.de

Thanks a lot

Solved.
I replaced the resistors on the PCB. But I was wondering what caused the burning of it. So I measured the resistance on the wiring and from B+ and B- to ground.

It turned out I had B- lying to ground somewhere. That was quite a search. I found two shortcuts:
1. Some mechanic put a new turn signal on the forklift and that was grounded. Removed that. But I still measured chassis to ground.
2. The cable loom was stuck behind the valve block. The wire from the accelerator to the direction switch was grounded over there.

After that tested the forklift and everything was fine.

Powerlifter and Max, You've been a great help!

Frits.

Thanks Powerlifter,

I will dig into this. I already found out I'm missing the 9V line. This manual will surely help me a lot! I will keep you updated.

Frits.

Hi Frits

I have sent you ther manual ket me know if you need more help always willing to help other even if some on here think its against the Forklift engineers Law lmao....

It is not written on the box but I think it is a LT200.

Hi Frits.
Is it a LT200 controller?
Regards, Max

Hi Swoop,

Yes it is a TVH accelerator. I got the partnumber from a Komatsu parts book of this truck. It only has a start switch. It is identical to the original one. 6 wires: three of the potmeter and three of the switch. So no mistakes possible with a shortcut/full speed switch.

I dont have another Bosch control so I cant compare, maybe someone knows something.

If I mount a new PCB do I have to teach it in or program it?

Thanks, Frits.

hello frits

in alot of these accelerator controls they have a pot, and a start switch and a high speed switch. In some cases if there is only one switch it would be a start/init switch or a high speed switch depending on how it is configured to turn on when the pedal is pressed, either at the beginning of the stroke as a start switch or at the end of the stroke at full pedal as a high speed switch.

I do have one question though, did the old accelerator assy have a part number on it? If so does it match the part you got as a replacement? Is the replacement part OEM or aftermarket (TVH)??

As for that PCB with the burned resistor your either going to have to find another truck like that one and see what it is on that truck (if its not burned). Or replace the module assy complete. The mfg will not give you specs on components because they probably do not know exactly, they usually farm out components from other companies that make them for them. And even if you could i doubt the engineers would tell you.

i would double check that accelerator assy and make sure it is the correct one. And also replace that PCB.

Got a bit further already.
I opened the control box and found a buned SMD resistor R139. I found in another thread this is a sacrificial resistor. Can anyone tell me the value of it because the colors are no longer there.

If I decide to replace the PCB. Is it factory adjusted or do I need a Bosch adjusment tool? (which I don't have).

Thanks, Frits.