Go Back   RCCrawler Forums > Scale Rigs Brand Specific Tech > Vaterra Scale Rock Crawlers > Vaterra Twin Hammers
Loading

Notices

Thread: Is my new TH supposed to make grinding noises?

Reply
 
LinkBack Thread Tools Display Modes
Old 03-20-2017, 09:42 PM   #1
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Is my new TH supposed to make grinding noises?

Just got a new TH yesterday and the first time I turned it on the shift servo sounds like it's constantly spinning and grinding. I did the servo adjustment and it shift fine, but the noise never stops. I don't see any fans anywhere...
Damatheus is offline   Reply With Quote
Sponsored Links
Old 03-21-2017, 02:57 AM   #2
Quarry Creeper
 
Join Date: Dec 2010
Location: Pontypool, wales
Posts: 364
Default Re: Is my new TH supposed to make grinding noises?

It's possible that it's not quite meshing properly if you can disconect the shift rod and find the neutral position between first and second it may allow you to pin point the problem better I'd definitely check inside the gearbox tho just for piece of mind !


Sent from my iPhone using Tapatalk
willyg1981 is offline   Reply With Quote
Old 03-21-2017, 04:00 AM   #3
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

Quote:
Originally Posted by willyg1981 View Post
It's possible that it's not quite meshing properly if you can disconect the shift rod and find the neutral position between first and second it may allow you to pin point the problem better I'd definitely check inside the gearbox tho just for piece of mind !


Sent from my iPhone using Tapatalk
It makes the sound with the shift linkage connected or disconnected. The noise starts the moment I turn on the truck. I read some reviews that say there is a cooling fan, but I've never heard one this loud. I can feel vibration coming from the shift servo, but it still seems to shift gears just fine.

I'll have to dig into it when I've more time.
Damatheus is offline   Reply With Quote
Old 03-21-2017, 06:01 AM   #4
Quarry Creeper
 
Join Date: Dec 2010
Location: Pontypool, wales
Posts: 364
Default Re: Is my new TH supposed to make grinding noises?

Also possibly the shift servo hasn't been centred before installation ???


Sent from my iPhone using Tapatalk
willyg1981 is offline   Reply With Quote
Old 03-21-2017, 07:07 AM   #5
RCC Addict
 
Join Date: Jun 2013
Location: Port Saint Lucie, Florida
Posts: 1,050
Default Re: Is my new TH supposed to make grinding noises?

Read the top sticky on how to set th shift servo.
Richterat83 is offline   Reply With Quote
Old 03-21-2017, 08:14 PM   #6
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

I've adjusted the shift servo, and the truck shifts fine. The shift servo though makes a continuous grinding noise no matter how I adjust the end points, and whether it's connected or not or whether I am shifting or not. I verified it IS the servo by unplugging it, which made the noise stop.

I'm going to contact Vaterra and put in a warranty request, as it appears the servo is defective.
Damatheus is offline   Reply With Quote
Old 03-22-2017, 12:59 AM   #7
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

For anyone curious, here is a video of the noise it's making.

https://www.youtube.com/watch?v=PG-g...ature=youtu.be
Damatheus is offline   Reply With Quote
Old 03-23-2017, 02:35 PM   #8
Rock Stacker
 
Join Date: Jan 2017
Location: Adelaide
Posts: 90
Default Re: Is my new TH supposed to make grinding noises?

That's what digital servos do. More expensive ones are quieter. Yours does sound quite loud but I doubt there is anything wrong, it's just a cheap servo.
That's assuming of corse the end points are set correctly. Ideally set it so there is absolutely no force on the linkage in either gear and the ball studs rotate freely with your finger if you wobble them side to side

Last edited by SkiSteve; 03-23-2017 at 02:38 PM.
SkiSteve is offline   Reply With Quote
Old 03-23-2017, 03:30 PM   #9
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

Quote:
Originally Posted by SkiSteve View Post
That's what digital servos do. More expensive ones are quieter. Yours does sound quite loud but I doubt there is anything wrong, it's just a cheap servo.
That's assuming of corse the end points are set correctly. Ideally set it so there is absolutely no force on the linkage in either gear and the ball studs rotate freely with your finger if you wobble them side to side
Dang, that's a nasty sound for it to be normal. But it is functioning normally, and I've set the end points well. Guess I'll order an upgraded one to get rid of the sound.
Damatheus is offline   Reply With Quote
Old 03-23-2017, 05:06 PM   #10
Rock Stacker
 
Join Date: Jan 2017
Location: Adelaide
Posts: 90
Default Re: Is my new TH supposed to make grinding noises?

They all make some noise as the servo is constantly applying power to hold its position. My understanding is that they "hunt" slightly for the exact position so they are always twitching a little. Mine does it too but to a lesser extent. Maybe someone else can advise of a quieter servo.
SkiSteve is offline   Reply With Quote
Old 03-23-2017, 05:13 PM   #11
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

Ok, thanks for the help. Fairly new to the hobby and didn't realize digital servos would do that.
Damatheus is offline   Reply With Quote
Old 04-07-2017, 11:54 PM   #12
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

Well it failed in the first ten minutes of use even with the shift points set. It would just not stop making that grinding noise no matter what i did, now it wont shift. Time to contact vaterra or Amazon.
Damatheus is offline   Reply With Quote
Old 04-08-2017, 07:53 AM   #13
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

Ok so I took the TH hammer apart tonight and it turned out the shift service didn't fail. My remote had somehow set my A switch (for shifting) to "inhibit"

Once I set it back to operate auxiliary A (it's set to aux 1 2p) it works fine. But now it keeps setting it back to inhibit randomly.

Any ideas?

Sent from my SBM303SH using Tapatalk
Damatheus is offline   Reply With Quote
Old 04-09-2017, 08:41 AM   #14
Rock Stacker
 
Join Date: Jan 2017
Location: Adelaide
Posts: 90
Default Re: Is my new TH supposed to make grinding noises?

Yep, set all the settings as you want them and then re bind the radio. What radio is it, 4dxc?
SkiSteve is offline   Reply With Quote
Old 04-09-2017, 04:55 PM   #15
Quarry Creeper
 
Join Date: Mar 2017
Location: San Diego
Posts: 200
Default Re: Is my new TH supposed to make grinding noises?

Quote:
Originally Posted by SkiSteve View Post
Yep, set all the settings as you want them and then re bind the radio. What radio is it, 4dxc?
It is the D4XC yes. Ok, so set the setting and rebind. Will try that today. I played with it some yesterday and it seemed to be holding the settings over the course of a few hours, so I will check again today.

Ordered a new shift servo anyway.
Damatheus is offline   Reply With Quote
Reply



Is my new TH supposed to make grinding noises? - Similar Threads
Thread Thread Starter Forum Replies Last Post
lcc noises jetrod7024 Newbie General 7 03-03-2011 03:50 PM
Noises... Skysthelimit Newbie General 14 06-12-2009 04:05 PM
battery noises tdodm Electronics 1 05-15-2008 08:13 PM
wooded noises clodstall Videos! 3 03-25-2007 02:36 PM
more noises cas22 General Crawlers 5 11-10-2006 10:43 AM
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 04:00 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com