Kraton Thought my front diff was broke,but its the gear the big spur gear connects to. Need Help !

vellfrmla

Active Member
Messages
10
Reaction score
2
Arrma RC's
Just put in a 6s battery . Braking started taking longer to stop, then bam i couldn't stop or go. I took off the front diff,thinking that was the problem. No its the gear the big spur gear on the diff engages. I used to build rc10t and ls with my dad many moons ago. I need some help on this one. Just got back into rc. Thanks a trillion. Noob question i know.
 

Attachments

BigSplit

Well-Known Member
Messages
194
Reaction score
152
Arrma RC's
Granite, Talion
Are you asking how to remove it? If so, there is a grub screw on the diff cup on the other side of the diff case that you loosen. That diff cup is on the shaft of that gear, after loosening the grub screw it should slide right out.
 

itsachevy

Well-Known Member
Messages
217
Reaction score
87
Arrma RC's
, Talion,
You have pix of the diff. The small gear looks fine
 

vellfrmla

Active Member
Messages
10
Reaction score
2
Arrma RC's
You have pix of the diff. The small gear looks fine
Its whatever that small gear connects to thats broke. I don't know the name of it. First 4wd truck. Thx

Are you asking how to remove it? If so, there is a grub screw on the diff cup on the other side of the diff case that you loosen. That diff cup is on the shaft of that gear, after loosening the grub screw it should slide right out.
Im asking the name of the part i need to replace. Its whatever that Lil gear connects to thats stripped i guess. The front diff is fine and the center diff. First 4wd. Thanks
 

Attachments

narcolepsyboy

Well-Known Member
Messages
3
Reaction score
0
Location
Hampshire
Arrma RC's
Hi, I have had my Arrma Kraton for 1 week now and have driven it 3 times. The 2nd and today (3rd) this front diff joining cup (as this current thread describes) has come off again after re-assembling it last night. Not very impressed! Is there an upgrade or something I need to do to make sure this cup doesn't come off? I noticed that I had to line up the flat part of the diff gear (ar310498) that sticks through the housing/bearing with the grub screw tightening. If this is a weakness on this truggy and there is no fix I will have to send it back. Expected more for something that cost what it did. Any pointers will be appreciated! :)

I also noticed that the mount that holds down the top of the engine had a missing screw and on further inspection found the hole hadn't even been correctly been drilled! (top right screw location in pic)

View attachment 984
 
Last edited:

Swerny

Well-Known Member
Messages
197
Reaction score
70
Location
Toronto, Ontario, Canada
Arrma RC's
,
Hi, I have had my Arrma Kraton for 1 week now and have driven it 3 times. The 2nd and today (3rd) this front diff joining cup (as this current thread describes) has come off again after re-assembling it last night. Not very impressed! Is there an upgrade or something I need to do to make sure this cup doesn't come off? I noticed that I had to line up the flat part of the diff gear (ar310498) that sticks through the housing/bearing with the grub screw tightening. If this is a weakness on this truggy and there is no fix I will have to send it back. Expected more for something that cost what it did. Any pointers will be appreciated! :)

I also noticed that the mount that holds down the top of the engine had a missing screw and on further inspection found the hole hadn't even been correctly been drilled! (top right screw location in pic)

View attachment 984
Send it back????

Use blue locktite...problem solved.

Mine has come off once a month ago and never again since i used blue loctite.
 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Top