U-Force 75, lehner 5300 Problems
 

i now have tacoprerunners FLM Rustler to go along with my other BL Rustlers and BL stampedes.

i am having a problem with the U-Force 75, lehner 5300 combo that it came with.

when i connect any 3000mah 7cell pack to the controller, system beeps fine for startup. go to run the car and will run for a few seconds, then i lose motor power and i only get steering. system will make startup beeps again, work for a few seconds more and then the same thing.

here are my DIL switch settings

DIL #1 - ON
DIL #2 - OFF
DIL #3 - ON
DIL #4 - ON
DIL #5 - OFF
DIL #6 - OFF

anyone have any ideas?

thanx,

justin

Try another batteriepack!

it sounds to me, like it has got a loose contact (darn funny, considering it's a schulze setup, but it's likely)

It can be a voltage drop from the pack as well, due to a loose contact or poor batteries. Does one cell get very hot in particullar?

What cells are you using?

Welcome to the forums, Justin. :)
I would bet on the batteries. The Schulze controllers do exactly what you describe when the voltage drops too low(55 some odd % of initial voltage at plug in). Low quality batteries drop voltage in a hurry when under a load. Try another set of batteries, or even better battery connectors as Serum mentioned. It seems like low voltage based on your description.

yeah, sorry for not calling you welcome..

Here is the red carpet to walk over.. :D

thanx for the welcome guys. ;)

i dont think it is the batteries, because i have used them with my other BL setups. hey who knows, maybe.

1. schulze 12.97 w/ B50 8L on 12cells.
2. Hacker Master Competition w/ lehner 5300 on 7cells.
3. Novak SS5800 on 7cells.

i believe it is geared 16/84, but i am not sure because i didnt install the spur. i am going to look when i get home tonight because it may be 16/87. my other 5300 in my stampede seems much faster which i am 90% sure is geared 16/84 (with same batteries).

i dont think it has anything to do with the gear ratio, or the motor/controller though.

1.) i tested the lehner 5300 with my schulze 12.97 with almost the same results.
2.) i tested the the U-force 75 with my lehner 4200 with almost the same results.
3.) i tested the lehner 4200 with my schulze 12.97 with almost the same results.

i am thinking that there is something wrong with my Hitec Lynx FM TX/RX to get the same results like that. i have a different set of TX/RX i am going to try tonight.

here are my DIL switch settings

DIL #1 - OFF
DIL #2 - OFF
DIL #3 - ON
DIL #4 - OFF
DIL #5 - ON
DIL #6 - OFF


thanx,

justin

tested electronics and everything is fine.

opened up some new 3300mah 7cell battery packs, while testing my 1 year old 3000's. sure enough the batteries were the issue - issue solved.

changed gearing to 16/84, and it rips. my other BL's should be fun now with the new 3300mah battery packs. :D

thanx,

justin

Cool. Glad you got it figured out. The other cars should be noticeably faster as well!

Good to hear Joostin!