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E-maxx 3906 question |
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(#1)
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RC-Monster Stock
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Posts: 15
Join Date: Jul 2009
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E-maxx 3906 question -
08.05.2009, 12:09 AM
i just got a (used) older e-maxx and during the first time running the motor spins at high rpm but the truch is barely moving could someone help me out with this promblem
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(#2)
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Guest
Posts: n/a
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08.05.2009, 12:16 AM
stock? i would check the gearing, clutch, make sure all the drivelines have set screws in em, do all 4 wheels move without laod...with load? Can u get a video of what its doing? would help alot!
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(#3)
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RC-Monster Stock
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Posts: 15
Join Date: Jul 2009
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08.05.2009, 12:22 AM
i will try to get one put on tomorrow but i did check all that and everything look fine to me and yes it is stock i took off the motor cover and when i spin the big gear with my hand the tires do spin but slower then they where at first
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(#4)
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Guest
Posts: n/a
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08.05.2009, 12:37 AM
I would guess the problem to be the slipper. The pinions (smaller gears) attached to the motors spin the spur (large) gear. The spur gear is not coupled to the transmission drive shaft and should not be. There are two plates that press against the spur gear that is intended to provide an upper limit of torque that the motors can put out through the drive train. The amount of friction is controlled by a spring on the shaft that is secured by a lock nut. Tighten that nut a little bit and see if the problem persists.
.dk |
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(#5)
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working on a brushless for my wheelchair.....
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Posts: 4,890
Join Date: Mar 2007
Location: minnesnowta
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08.05.2009, 12:39 AM
sounds like a loose slipper clutch. do you know what that is? It's around the big main gear (spur gear) Tighten the locknut that holds the spur gear on. The spring behind the locknut adjusts pressure on the slipper clutch.
It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper. |
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(#6)
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RC-Monster Stock
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Posts: 15
Join Date: Jul 2009
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08.05.2009, 12:41 AM
I was just looking at that and it looks like he took off the spring and placed a spacer or washer in it place
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(#7)
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working on a brushless for my wheelchair.....
Offline
Posts: 4,890
Join Date: Mar 2007
Location: minnesnowta
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08.05.2009, 12:44 AM
sounds like the prob. Welcome to RCM! There is an e-maxx sub-forum but no biggie. Good luck!
It's "Dr. _paralyzed_" actually. Not like with a PhD, but Doctor like in Dr. Pepper. |
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(#8)
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RC-Monster Aluminum
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Posts: 812
Join Date: Mar 2008
Location: bay area california
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08.05.2009, 12:56 AM
what about when you go in reverse? does it go just as slow or is in normal speed?
im also curious about this, if you have a loose slipper, does this only affect forward motion? |
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(#9)
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Guest
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08.05.2009, 12:59 AM
Quote:
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(#10)
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RC-Monster Stock
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Posts: 15
Join Date: Jul 2009
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08.05.2009, 01:04 AM
yes it is doing it in foward and reverse
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(#11)
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RC-Monster Aluminum
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Posts: 812
Join Date: Mar 2008
Location: bay area california
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08.05.2009, 04:31 PM
ok thats what i figured as well.
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