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Thumb Design

digger242j

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Oct 31, 2003
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Southwestern PA
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Self employed excavator
Thought I'd bring this one up again to see if anybody else has some good thumb pics

You're just a glutton for punishment, aren't you?

For anyone reading this thread for the first time, and who has bothered to go back and read through all the silliness of page one, (because, I posted the pictures in their own thread, but neglected to point out that thread), here's the link to the thread containing pictures of the thumb installation we were discussing there:https://www.heavyequipmentforums.com/Forum/showthread.php?p=17832#post17832

It would probably work best to keep any further replies to Squizzy's latest post, in this thread.
 

Squizzy246B

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Sep 9, 2005
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Perth, Western Australia
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Digger Driver
You're just a glutton for punishment, aren't you?

It would probably work best to keep any further replies to Squizzy's latest post, in this thread.

No....you see, we are not interested in your crappy static thumb...you took too long to post those pics and tried to Hi-jack my thread in the doing!:D

We are after "Real" thumbs you see...hydraulics and everything.:cool2

See I know what you were up too..:nono

https://www.heavyequipmentforums.com/Forum/showthread.php?t=3472
 
Last edited:

digger242j

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Messages
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Southwestern PA
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Self employed excavator
No....you see, we are not interested in your crappy static thumb...

I will have you know--that crappy thumb is not static at all. In the stowed position, it moves back and forth a good half to three quarters of an inch, every time you move the dipper, as evidenced by the accompanying clanking and clunking all damn day long. So there. :p
 

nedly05

Senior Member
Joined
Jan 28, 2006
Messages
1,801
Location
Adk. Mtns, NY
I will have you know--that crappy thumb is not static at all. In the stowed position, it moves back and forth a good half to three quarters of an inch, every time you move the dipper, as evidenced by the accompanying clanking and clunking all damn day long. So there. :p

We have the same thumb on our 70SR, the USA deal. It works well, takes a pounding, but the slapping and banging when its stowed:Banghead AHHHH. I welded a big spring behind it to tame it down, but it just wore the spring out:Banghead Ours was $776 delivered from NC, and was welded on on a Saturday for free (by me). For the money it is great, but the slapping and banging.........
 

catmandu

New Member
Joined
Mar 21, 2010
Messages
2
Location
Starke, FL
Asking for some good advice on purchasing a Thumb (non-hyd) for my CAT 304 CR.

I use a 18" bucket W/four teeth.
 

245dlc

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Mar 16, 2010
Messages
1,228
Location
Canada
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Heavy Equipment Operator
There is one or two alternatives that don't require any welding, I think this is the idea that I'm going to go with when I buy my first machine. I like having a thumb when I'm doing demolition or bush clearing type of work, but when I'm using a tilt bucket or doing ordinary digging work I don't really like having a thumb there I find it excessively heavy and can add a lot of unwanted weight when reaching out with a heavy bucketful. So I found these alternatives:

http://www.rocklandmfg.com/excavator/krypto_klaw.htm

http://www.nyemanufacturing.com/excavator/ex_buckets/grpl_bkt_zoom/grpl_bkt.htm

http://www.helac.com/construction/powergrip.asp

A number of years ago I saw a custom made unit like the krypto klaw at work and wanted one right away it has all the advantages of a progressive thumb but you don't have to weld anything on to the stick or have the extra weight penalty of the heavy linkage.
 
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