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RICrawler · 03-02-2011, 06:59 PM

I just finished installing a pair of holmes hobbies 11 turn 454 cobalt pullers on a Redcat RS10 moa crawler, it seems to run fine on flat ground but when under load or full throttle it starts to pulse and then cuts out completely, steering and all. any ideas what could be wrong? I know it's a Redcat, but I've put alot of work into it, and it's a very capable crawler. Any help would be greatly appreciated, I don't want to put the stock motors back on, but it ran perfectly until the motor swap. I'm running 7.2 Nimh on the stock, dual motor esc which is rated for 8.4v.

robdogcc01 · 03-02-2011, 07:44 PM

Stupid question, but is your esc rated for the proper amount of turns for those motors? Sounds like you're glitching. Checked your temps and motor rotation direction? Just my. 02.

ax-10 crazy · 03-02-2011, 07:52 PM

Does it work awhile after it cuts out? If so you may need a bec as your motors are taking all the power from your battery and leaving none for your reciever and servo. Similar to a brown out.

RICrawler · 03-02-2011, 08:01 PM

Yes, it works again after a few seconds but cuts out again at heavy throttle.

ax-10 crazy · 03-02-2011, 08:13 PM

Quote:

Originally Posted by RICrawler

Yes, it works again after a few seconds but cuts out again at heavy throttle.

Then to solve it you will need a bec. Do a little searching to find more info on it.

RICrawler · 03-02-2011, 08:21 PM

Thanks alot, I will try that. Sounds like a good explanation to me.

JohnRobHolmes · 03-03-2011, 05:51 AM

It is either a BEC needed, a better battery needed, or it is over amping the speed controller. If the speed controller is not warm the first two are most likely.

03-02-2011, 06:59 PM	#1
RICrawler Quarry Creeper Join Date: Nov 2010 Location: Little Compton RI Posts: 378	Need help with cobalt pullers in RS10 I just finished installing a pair of holmes hobbies 11 turn 454 cobalt pullers on a Redcat RS10 moa crawler, it seems to run fine on flat ground but when under load or full throttle it starts to pulse and then cuts out completely, steering and all. any ideas what could be wrong? I know it's a Redcat, but I've put alot of work into it, and it's a very capable crawler. Any help would be greatly appreciated, I don't want to put the stock motors back on, but it ran perfectly until the motor swap. I'm running 7.2 Nimh on the stock, dual motor esc which is rated for 8.4v.

03-02-2011, 07:44 PM	#2
robdogcc01 Newbie Join Date: Mar 2011 Location: warrenton Posts: 4	Hmm... Stupid question, but is your esc rated for the proper amount of turns for those motors? Sounds like you're glitching. Checked your temps and motor rotation direction? Just my. 02.

03-02-2011, 07:52 PM	#3
ax-10 crazy Rock Crawler Join Date: Apr 2010 Location: Kelowna, B.C., Canada Posts: 529	Does it work awhile after it cuts out? If so you may need a bec as your motors are taking all the power from your battery and leaving none for your reciever and servo. Similar to a brown out.

03-02-2011, 08:01 PM	#4
RICrawler Quarry Creeper Join Date: Nov 2010 Location: Little Compton RI Posts: 378	Yes, it works again after a few seconds but cuts out again at heavy throttle.

03-02-2011, 08:21 PM	#6
RICrawler Quarry Creeper Join Date: Nov 2010 Location: Little Compton RI Posts: 378	Thanks alot, I will try that. Sounds like a good explanation to me.

03-03-2011, 05:51 AM	#7
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	It is either a BEC needed, a better battery needed, or it is over amping the speed controller. If the speed controller is not warm the first two are most likely.

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