Help please - Schumacher Cougar SV Pro

[Jesse James]

Hi Guys,

First time out last night with my Schumacher Cougar SV Pro and had a few problems with the steering end of things.

The buggy came factory assembled and included plastic servo horns.

Duly fitted servo and plastic horn but even with relatively low speed impacts the teeth on the horns kept stripping. Steering ackerman and linkages all free.

There isn't a servo saver fitted so going to have a look to see if one is available.

Should I just fit a metal servo horn or is a servo saver a must?

Fitted Savox 1268 and Ace DS1015 as had both these spare from my nitro buggy. I know that these are both really overkill for electric 2WD, does this also have something to do with stripping the servo horn teeth?

Any help appreciated.

Regards,

Steve.

[john333]

Yes, just get an ally servo horn. Be aware of the shape of it though as some aren't a suitable fit. From memory fast trax and core rc are the ones to use but please check first. If you do a search on here there is a thread about this subject which does tell you which ones fit ok

[john333]

Oh, forgot to say very few people use a servo saver on the cougar, just the ally horn is fine

[mark christopher]

you are using the correct horn?

[Jesse James]

Originally Posted by mark christopher

you are using the correct horn?

Yes, using the ones that came with the buggy.

When the first one stripped on the Savox 1268, I fitted the Ace 1015 and appropriate horn just to eliminate a servo problem but same thing happened.

Will try alloy horn and see how that goes.

[Jesse James]

Originally Posted by john333

Oh, forgot to say very few people use a servo saver on the cougar, just the ally horn is fine

Many thanks for advice, appreciated.

[knighthawk]

This is the one I've fitted to my cars :

http://www.ebay.co.uk/itm/Answer-RC-...item564d7020ec

[Jesse James]

Originally Posted by knighthawk

This is the one I've fitted to my cars :

http://www.ebay.co.uk/itm/Answer-RC-...item564d7020ec

Many thanks.

[ian h]

Originally Posted by knighthawk

This is the one I've fitted to my cars :

http://www.ebay.co.uk/itm/Answer-RC-...item564d7020ec

Me too, find them brilliant.

[Jesse James]

Ok, many thanks for your help up to now.

I have acquired an Answer RC Servo Horn as suggested, fitted and all seems to be fine.

Moving onto Motor and ESC timing setting.........

I have fitted a Speedpassion 7.5T brushless motor and ESC but not sure what to do when setting the motor timing via the program card?

There seems to be lots of options on the ESC program card ranging from 0deg upwards with some options stating >=10.5T etc. etc. On the end of the motor there are also markings showing 0deg and +10deg and looking just under the +10deg I can see a figure '0'.

Confused as to what this means and what is the relation between the figure showing on the motor and the chosen setting via program card?

[tisher]

Originally Posted by Jesse James

Ok, many thanks for your help up to now.

I have acquired an Answer RC Servo Horn as suggested, fitted and all seems to be fine.

Moving onto Motor and ESC timing setting.........

I have fitted a Speedpassion 7.5T brushless motor and ESC but not sure what to do when setting the motor timing via the program card?

There seems to be lots of options on the ESC program card ranging from 0deg upwards with some options stating >=10.5T etc. etc. On the end of the motor there are also markings showing 0deg and +10deg and looking just under the +10deg I can see a figure '0'.

Confused as to what this means and what is the relation between the figure showing on the motor and the chosen setting via program card?

I suggest if your doing your racing at ribble I would leave all your esc settings on default as that should be fine on a 7.5 in a 2wd on that track

[Lee24h]

The plastic horn is used as a stripped tooth is better than stripped servo gears which occurs with the metal as theres no give in the servo linkage except for the sacrifical gear

[Addicted2blue]

I'm using the racers-edge servo horn, one of the best there is.
It has 2 screws to lock the servo horn on the servo, had the same problem of striping the horn but ever since i mounted the racers-edge horn i haven't got any issues so far.

http://www.racers-edge.com/product_p/rce10380bk.htm