Removing gearboxes
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If your question is electronics related please post it in one of the relevant boards here: viewforum.php?f=31
If your question is electronics related please post it in one of the relevant boards here: viewforum.php?f=31
- HammerWihoutASickle
- Lance Corporal
- Posts: 165
- Joined: Fri Aug 18, 2017 5:56 pm
- Location: Newburgh, NY - 12550
Removing gearboxes
Hey all. So it seems the rubbish zinc gears on the T90 have stripped, and the right side doesn't go forward any more. I have replacements on the way, but I'm having troubles trying the remove the gearboxes themselves. They seem to be attached to the sprocket wheels, and I cannot for the love of me find a way to remove them.
Now, how do I yank these things out?
I've removed the first half of the sprockets with the hexagon head screwdriver, it's the secondary part that's attached.
Yes, yes I'm going to remove the grass that's stick to the wheels, I know, don't kill me.
Thanks in advance.
Sent from my Pixel using Tapatalk
Now, how do I yank these things out?
I've removed the first half of the sprockets with the hexagon head screwdriver, it's the secondary part that's attached.
Yes, yes I'm going to remove the grass that's stick to the wheels, I know, don't kill me.
Thanks in advance.
Sent from my Pixel using Tapatalk
Heng Long T-90SM
Heng Long Leopard 2A6
Heng Long Challenger 2 (credit to rctankmodified)
I ask too many questions.
Heng Long Leopard 2A6
Heng Long Challenger 2 (credit to rctankmodified)
I ask too many questions.
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- Lance Corporal
- Posts: 169
- Joined: Sun Jul 09, 2017 8:32 am
Re: Removing gearboxes
I'm having the exact same problem mate.......... Eagerly awaiting answers
- HammerWihoutASickle
- Lance Corporal
- Posts: 165
- Joined: Fri Aug 18, 2017 5:56 pm
- Location: Newburgh, NY - 12550
Re: Removing gearboxes
Blackadder123 wrote:I'm having the exact same problem mate.......... Eagerly awaiting answers
Sent from my Pixel using Tapatalk
Heng Long T-90SM
Heng Long Leopard 2A6
Heng Long Challenger 2 (credit to rctankmodified)
I ask too many questions.
Heng Long Leopard 2A6
Heng Long Challenger 2 (credit to rctankmodified)
I ask too many questions.
- jarndice
- Colonel
- Posts: 8021
- Joined: Mon Sep 03, 2012 11:27 am
- Location: the mountains of hertfordshire
Re: Removing gearboxes
Years ago I was into model power boats and to change the flywheel on the engines I used I had a Universal puller,
It was just like you see in garage workshops but down to the size that we work with.
It might be worth searching the usual websites for something like that.
Shaun.
It was just like you see in garage workshops but down to the size that we work with.
It might be worth searching the usual websites for something like that.
Shaun.
I think I am about to upset someone
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- Staff Sergeant
- Posts: 769
- Joined: Sat Oct 29, 2016 8:57 pm
- Location: Retford Nottinghamshire
Re: Removing gearboxes
A small puller would work, I got one off our local market for a couple of quid, you could also try pouring hot kettle
water over the hub, it could free it off.
regards john.
water over the hub, it could free it off.
regards john.
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- Private
- Posts: 74
- Joined: Sun Jan 26, 2014 10:51 pm
Re: Removing gearboxes
OMG!!
I thought of this too but was afraid of damage the inner thread of the shaft... And two days ago i ended swapping the 380 engines in my GB for 390s ... And i had to disassemble the GB inside the hull to gain access to the screws...
God to know for the next time
I thought of this too but was afraid of damage the inner thread of the shaft... And two days ago i ended swapping the 380 engines in my GB for 390s ... And i had to disassemble the GB inside the hull to gain access to the screws...
God to know for the next time
Jussek
https://www.facebook.com/pages/Club-RC-Reus-Secci%C3%B3-de-Modelisme-Militar-Radiocontrolat-PzGr-Tarraco/639220812799552
https://www.facebook.com/pages/Club-RC-Reus-Secci%C3%B3-de-Modelisme-Militar-Radiocontrolat-PzGr-Tarraco/639220812799552
- jarndice
- Colonel
- Posts: 8021
- Joined: Mon Sep 03, 2012 11:27 am
- Location: the mountains of hertfordshire
Re: Removing gearboxes
Perhaps start by Undoing the gearboxes from their mounts then screw the output shaft Hex bolt back in but just a few turns and lightly tap the head of the Hex head bolt with a hammer to get the sprocket free then undo the hex bolt and remove the sprocket and repeat for the other side.
Shaun.
Shaun.
I think I am about to upset someone
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- Lance Corporal
- Posts: 169
- Joined: Sun Jul 09, 2017 8:32 am
Re: Removing gearboxes
Key thing we forgot to ask here....... How do you fit the sprocket back on? Erik's hammering method won't work there