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  1. #1
    RC Racer
    Join Date
    Sep 2012
    Posts
    237

    Spur Gear melted 1st run?

    Was running on 2S 40C 5000MAH batteries and about 6 minutes of running the spur gave up. Any guesses what would cause a spur gear to melt like this? Slipper to loose causing heat?




  2. #2
    RC Qualifier
    Join Date
    Oct 2008
    Location
    Kansas
    Posts
    458
    Looks to me like your slipper was way too loose and got really really hot and melted your spur gear. And for what it did to the slipper plate and pads you will probably need a new slipper rebuild kit:
    http://www3.towerhobbies.com/cgi-bin...?&I=LXZUH8&P=Z
    Last edited by Charger Man; 08-25-2013 at 03:20 PM.
    79 mph E-Revo on 6s
    101 mph Slash 4x4 on 6s

  3. #3
    RC Turnbuckle Jr. 87 GN's Avatar
    Join Date
    Mar 2010
    Location
    kansas
    Posts
    8,635
    Slipper Clutch Break-In
    The E-Revo Brushless Edition’s slipper clutch requires a break-in procedure
    to ensure consistent operation with the extremely high power output of
    the included Castle Creations Mamba Monster brushless motor system. The
    slipper clutch has been adjusted to the correct initial setting for break-in.
    Follow these steps to ensure maximum performance and life from your
    slipper clutch:
    1. Make your first runs with the model using the stock gearing and 6- or
    7-cell NiMH packs, or 2S LiPo packs.
    2. Drive normally. The slipper clutch should slip momentarily when
    accelerating aggressively on high-traction surfaces (you will hear a
    whirring sound when the slipper clutch allows the spur gear to slip).
    3. If excessive slippage is noticed (slipping that lasts for more than 3
    seconds under hard acceleration), or the slipper clutch slips anytime
    the throttle is applied at any lever, stop driving immediately. Let the
    slipper clutch cool for 10-15 minutes. When the clutch is cool, test-drive
    the vehicle again. If you still experience excessive slippage, allow the
    slipper to cool once more, then tighten the slipper nut turn (turn the
    nut clockwise) and repeat the break-in process. Do not adjust the slipper
    clutch before it has cooled.
    4. Continue to run the vehicle and monitor slipper clutch performance as
    noted above, and readjust if necessary. When the run is complete, the
    slipper should be fully broken in.
    After break-in, the slipper clutch is ready for any type of driving, with any
    batteries up to 6S Lipo. Set the slipper clutch so it only slips for a moment
    (if at all) under hard acceleration in high-traction conditions. If excessive
    slippage is noticed, stop driving immediately. Continuing to drive with a
    loose slipper will cause damage to the slipper unit. You must let the slipper
    cool down to ambient temperature before tightening the slipper nut and
    resuming driving.
    Would you go flip my truck back over??

  4. #4
    RC Qualifier
    Join Date
    Jan 2013
    Location
    The Netherlands
    Posts
    851
    Yup slipper too loose. Had the same on my first run too but i noticed the sound of the excessive slipping before it could melt the spur. Good luck rebuilding . And read the manual, i never read manuals but the E-Revo manual has some important details in it worth reading.

  5. #5
    RC poster
    Join Date
    Jun 2014
    Posts
    1
    i have the same issue , and im kinda noob in this , so i need to get Slipper Clutch and also T65 ? because it also was melted ! and from 1st run

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