****LCC Locked up and Won't Move****

[Joe226]

So I recently got a LCC and a Futaba 4pl and set it up following the Losi Crawler guide on Harley's "4PK Setups, Tips, Tricks and Help" thread.

The Problem: When I engage the throttle forward or reverse the wheels don't move but I can hear the motor trying to move. The dig servo arm moves to 3 different positions, but the difference between middle and fully rearward is shorter/smaller than the middle and fully forward position. I guess that is normal?

Also I can't spin the wheels on the LCC when everything is off, they are locked up. Is this normal?

It has a Epic 21t motor and a Goat 3s(properly linked to transmitter).

Any ideas?

Thanks,
Joe

[killswitch]

You can't spin the LCC wheels. The worms only work when the input shafts are turning. Sounds like something is bound up. The dig servo doesn't need a lot of travel to engage either way.

[Joe226]

It almost sounds like the motor is spinning (not really bound up), but I am not sure and I don't want to test it again to find out. I doubt it's good for the motor. It's hard to describe, the motor seems to get some resistance, but also seems to be spinning with very little throttle (barely even 1/8 throttle).

Any Ideas?

[rangercat23]

Pull the motor out of the trans and see if it runs free, that would eliminate an electronic issue.
Also with the motor out, see if you can spin the drive shafts by hand. As stated in a previous post, the LCC has worm gears in the axles so the only way to spin the wheels is to rotate the drive shafts.
If everything works with the motor out you may have had your pinion mesh to tight and it was causing the motor to stall.

[losikid]

Originally Posted by Joe226

It almost sounds like the motor is spinning (not really bound up), but I am not sure and I don't want to test it again to find out. I doubt it's good for the motor. It's hard to describe, the motor seems to get some resistance, but also seems to be spinning with very little throttle (barely even 1/8 throttle).

Any Ideas?

Have you checked to see if the gear mesh is set properly, the spur gear isn't stripped, the set screw is tight on the motor pinon, can you turn the drivelines with your fingers?

[Joe226]

So I pulled the 2 covers off that expose the pinon and spur gear and instantly noticed the pinon gear was about 1/4'' away from the spur gear. Now, this is my first crawler and just got into electric RC's this last month, but even I was able to figure out (by deductive reasoning of course) that this was the root of the problem.

In my defense I got the LCC a couple weeks ago off another forum and just got my transmitter today to set everything up. The LCC came from Chicago so maybe on its long journey to California the motor rattled a little loose and spun away from the spur gear.

Needless to say I feel pretty stupid right now. At least I was right in saying that it sounded like the motor was spinning freely.

Thank you KILLSWITCH, rangercat23, and losikid for responding and all the suggestions.

I am going to go hide under a rock now and resurface later when my dignity is restored.

[dieselmudder]

Gear covers are overrarated. I take them off everything

[rangercat23]

Originally Posted by Joe226

I am going to go hide under a rock now and resurface later when my dignity is restored.

It's all good, we all started in this hobby knowing slim to nothing at one point.

[Lukescb7]

No worries, when i first got my LNC i couldnt figure out for the life of me why my motor wouldn't move....It was unplugged. And this was after racing stadium trucks for 2 years straight. Just overlooked it.

[Charlie-III]

Originally Posted by rangercat23

It's all good, we all started in this hobby knowing slim to nothing at one point.

Some of us started RC before there was a "real Internet".....meaning before "Al Gore" invented it.