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smallest hoe for utility installation

hougie

Well-Known Member
Joined
Aug 8, 2010
Messages
153
Location
Alberta, Canada
Occupation
municipal worker
Hey guys,

Going to be buying a bigger excavator over the winter for next years digging season. I'm having to rent a backhoe for rural water line installs for cattle feeders and such. Bury depth is 8 feet to avoid freeze ups so i'd like to know what the minimum size hoe you would use? I wanted a cat 308 but it may be bigger then i need when i do 3ft gas lines and i considered a cat 305 but i'm not sure if it would be big enough for water/sewer jobs. Anyone have an opinion on my conundrum, I would appreciate it :)
 

204saskman

Well-Known Member
Joined
Apr 29, 2013
Messages
98
Location
east central saskatchewan canada
I just dug 850 feet of water lines for a fellow rancher and it was 8-9' deep with my kobelco sk35sr. It took me 25hrs total to do it but mine has a oversized 24" bucket. I would recomend a bit smaller bucket to do it than I used. I am in the midst of buying a 12" and im gonna modify a 16" bucket this winter while I build q clean up bucket. I would say a 40+ sized mini would do you. A 305 I thijk is a good choice.
 

hougie

Well-Known Member
Joined
Aug 8, 2010
Messages
153
Location
Alberta, Canada
Occupation
municipal worker
i've been looking over the specs of all the machines, The vertical wall depth of the 305 is like 8 or 9 feet which doesn't seem like enough. The 307 is over 11 feet and weighs 15-16000lbs which is managable so i think i'm going to buy something in the cat 307 size range.
 

Landclearer

Senior Member
Joined
Oct 3, 2012
Messages
1,227
Location
Southeast
Look into a Kubota KX-080. We have one and I really like the machine. Priced below a Cat as well. It is an 8 ton machine and will have no problem digging 8 feet deep.

Chris
 

joispoi

Senior Member
Joined
Mar 1, 2008
Messages
1,284
Location
Connecticut
8' deep on a 5 ton machine is slow going. How many feet, yards, miles do you have to install at -8'? I'd look closely at the zero tail swing 8 ton machines. They give you a little more reach and grunt than the 5 ton class, and let you into tighter job sites than a standard machine where you have to worry about tail swing.....
 

204saskman

Well-Known Member
Joined
Apr 29, 2013
Messages
98
Location
east central saskatchewan canada
Its not that bad. By no meqns is it a race to the finish, but when u need a small machine to get into those places it does the trick. Mine is 8900 lb I think and I just did 850' of hard digging with a 24" bucket to 8-9.5' and it took me 26 hrs to complete. We did have a bit of slack time too but it was fairly go go for th3 most part.
 
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