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 | Bob S
Join Date: Jul 2003 Posts: 8 Harvard, Ma. 
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2002-10-07 43508
Just added a 47 backhoe to an order for a 4310 with 430 loader. After many frets on just about everything I ordered, I am down to the rethinking the bucket size. The 47 comes standard with a 9" but I was thinking of going with the next size up from John Deere which is a 13". I will be moving and digging rocks and stump removal (as best as the 47 can) and not much if any trench work. 9" or 13" please any quick thoughts.
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada 
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2002-10-07 43509
The logic, at least in real world experience goes something like this (IMHO);
The smaller the bucket, the more force per square inch of bucket face, the more force the more effective ability to, for example, tear through a tough root, or flip up a stubborn rock.
Most importantly, the smaller the bucket, the smaller the hole thats left after the rock or root loses the battle, therefore the less dirt to BACKFILL.....
Best of luck. ....
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| DavesTractor
Join Date: Jul 2003 Posts: 148 Red Bluff, California
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2002-10-07 43510
This isn't the answer you want...but get both! I have a Yanmar mini-excavator (B37) and use a 12" bucket for tree removal, a 16" bucket for general digging, and a 24" for digging septics or the like when the soil isn't too hard or rocky. The small buckets surely work well, but they do not hold much dirt. In my limited experience, Murf is right on about the force advantage of a smaller bucket. ....
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley
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2002-10-08 43542
When I have done trenching for underground electrical there often is a need to work in the trench to make conduit and wiring connections. I can work in my 12" trenches (in practice they come out a bit wider) but I couldn't with 9" ones. It’s a good idea to always have somebody around if you’re going to lower your head while in a trench around 3’ or more. I forget the depth at which shoring is required.
In addition, the soil is sandy here and soil from the sides of trench walls does fall off. If you need a trench of minimum depth or need to put sand on the bottom, you can end up having to dig the bottom again to keep an inspector happy. That could be a problem if a trench runs between two buildings.
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 | jeff r
Join Date: Jul 2003 Posts: 428 burton. michigan
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2002-10-11 43720
I have a 12" 3 tooth which holds a little over 1.2 cu.ft heaped and a 4 tooth 18" at less than 2 cu.ft heaped. The 12 inch is is perfect for what I have done so far, the 18 is brand new and sits in my garage begging to be used. Remember this Steve. Bucket size is measured from the outside of the outermost teeth. Your bucket size that actually holds the dirt is smaller. My 12 inch bucket is actually 11 inches wide measured from on side of bucket to the other side. The 18 incher is a 17 inch wide bucket. I will bet your 9 inch bucket is an 8 incher measured from bucket edge. That is too small except for digging footings to filled with concrete. Why is the dealer only saying you can have a 9 incher? Most dealers say you have a choice of widths, but you only get 1 bucket. The 9 inch bucket isn't that popular for ALL-Round use. ALL-Round buckets are 12-16 inch models.
Jeff R ....
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