Lecky saw sprocket

[Stere]

Anyone have an idea how to disemble this sprocket to fit the new spur unit?

 

 

 

Bought this form china just the sprocket bit:

 

 

Gear sprockets BRAKE DRUM For MAKITA 225223112 225223111 225223110 UC4003A UC3500A UC4001A UC4000A UC3501A UC3001A UC3000A|Power Tool Accessories| - AliExpress

WWW.ALIEXPRESS.COM

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Smarter Shopping, Better Living! Aliexpress.com

 

Notice:

Please always compare the dimensions replacement part with the displayed 

If you will change the   Gear sprockets ONLY , It must use the Special tools

Don't have "special tools" so how does it come apart ?

 

Removed the circlip at top but nothing happened

Edited July 8, 2020 by Stere

[Stubby]

5 minutes ago, Stere said:

Anyone have in idea how to disemble this sprocket to fit the new spur unit?

 

 

 

Bought this form china:

 

 

Gear sprockets BRAKE DRUM For MAKITA 225223112 225223111 225223110 UC4003A UC3500A UC4001A UC4000A UC3501A UC3001A UC3000A|Power Tool Accessories| - AliExpress

WWW.ALIEXPRESS.COM

---

Smarter Shopping, Better Living! Aliexpress.com

 

Notice:

Please always compare the dimensions replacement part with the displayed 

If you will change the   Gear sprockets ONLY , It must use the Special tools

Don't have special tools

They look like Belleville  Washers in the stack . I suspect you compress the washer stack to enable a circlip or wire retainer of some sort to be removed . Probably a dedicated tool for it .

Edited July 8, 2020 by Stubby

[Stere]

Thanks

 

Circlip removed already (see it in top pic ) but rest still in one piece shouldn't it it just come apart now?

 

How about any gentle persuasion ?

 

bench vice the  Belleville  & whack with hammer or something?

 

 

 

 

[bmp01]

On 08/07/2020 at 16:05, Stubby said:

They look like Belleville  Washers in the stack . I suspect you compress the washer stack to enable a circlip or wire retainer of some sort to be removed . Probably a dedicated tool for it .

This.

 

If you've got the clip off already (top pic shows it still in place...) then yeah if might just be crudded up. 

Presumably you've composed the belleville washes so they ought to have loosened off.... should slide off....

[Stere]

Managed it after  compressing the washer and removiing an additional  internal clip from top that was under the top circlip.

 

Put a threaded bolt through cente hole.  Cut a disk of wood wedged it inside bottom of sprocket. Balanced 2 bolts as spacers on top of washer either side. Threaded a nut to push the washers down with the bolts  acting as spacers , then could get clip out.

 

Bits flew everywhere but all back together now after worked out which way up the washes went.

 

Can see see why they changed from this sprocket design.

 

 

 

 

[Stubby]

10 hours ago, Stere said:

Managed it after  compressing the washer and removiing an additional  internal clip from top that was under the top circlip.

 

Put a threaded bolt through cente hole.  Cut a disk of wood wedged it inside bottom of sprocket. Balanced 2 bolts as spacers on top of washer either side. Threaded a nut to push the washers down with the bolts  acting as spacers , then could get clip out.

 

Bits flew everywhere but all back together now after worked out which way up the washes went.

 

Can see see why they changed from this sprocket design.

 

 

 

 

Where there is a will there is a way .