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DAVIS Trencher

OVERTORQUED

Well-Known Member
Joined
Jun 9, 2013
Messages
218
Location
East Bay, CA
Occupation
Vintage Restos & occasional Tractors
Hi all- not sure if input this in correct forum. Just picked up this Davis Trencher and curious if anyone was familiar with these. It hasn’t ran in probably 20 years from what they said, and few things are frozen on it. Anyone give me the scoop on this thing? Thanks so much.






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thepumpguysc

Senior Member
Joined
Mar 18, 2010
Messages
7,714
Location
Sunny South Carolina
Occupation
Master Inj.Pump rebuilder
That's a very Kool lookin machine..
whats powering it?? gas or diesel??
The tracks look very "lawn" friendly..
The hydro "block" looks to be pretty straight forward & easily accessible.
Are u talking about the ENGINE hasn't ran it awhile??
 

mowingman

Senior Member
Joined
Jul 10, 2010
Messages
1,283
Location
SE Ohio
Occupation
Retired
That is an old one for sure. There are hundreds of the newer version of those, running everyday here in Texas. Davis trenchers were later built by Case, then Astec. A local equipment dealer still sells them, but I am not sure who manufacturers them now.
 

Bluox

Senior Member
Joined
Jun 19, 2010
Messages
1,960
Location
WA state
That's a very Kool lookin machine..
whats powering it?? gas or diesel??
The tracks look very "lawn" friendly..
The hydro "block" looks to be pretty straight forward & easily accessible.
Are u talking about the ENGINE hasn't ran it awhile??
The spark plugs may be a clue.
Bob
 

74inchShovel

Well-Known Member
Joined
Jan 19, 2008
Messages
164
Location
Washington
Looks like a Wisconsin TJD,had similar in a Ditch Witch many years ago. Your chain is set up pretty aggressive, farm dirt you’ll be ok, any type of rock you may want to narrow it. Am I seeing it correctly, the outermost hydraulic pump only has one line to it, is one missing?
 

farmboy555

Well-Known Member
Joined
Aug 24, 2006
Messages
191
Location
KY
Occupation
Owner Operator
I’d check out hydraulic filter, screen & fluid for sure
 

Metalman 55

Senior Member
Joined
Feb 6, 2013
Messages
1,301
Location
Ontario
When I was a kid, my dad had one, minus the blade. I think it had about a 15hp Wisconsin one lunger in it. Had steering clutches similar to a track dozer on it & variable speed hyd drive. He had ramps for it & loaded it in the back of a pickup to move it from job to job. It was a nice dependable unit as I recall.
 

OVERTORQUED

Well-Known Member
Joined
Jun 9, 2013
Messages
218
Location
East Bay, CA
Occupation
Vintage Restos & occasional Tractors
Been so busy haven’t had time to get back to this post... you all really know your stuff pointing stuff out, lol! Had to take the head off and do the gasket, rebuild the carb and a couple other little things. That Wisconsin fired right up and runs great. Actually got it running and moving under it’s own power today. Still needs a proper gas tank and yes it’s gas, not diesel. Wonder if there was other attachments that you could run on this? Going to try and put video on here- hopefully it will work.
 

OVERTORQUED

Well-Known Member
Joined
Jun 9, 2013
Messages
218
Location
East Bay, CA
Occupation
Vintage Restos & occasional Tractors
On another note, i just found and purchased the user manual and parts manual, so if anyone is in need of any info im more than happy to share. Like there is a ton of these out there lol!
 

Bob cav

New Member
Joined
Dec 5, 2022
Messages
1
Location
Mi
Hi could you send me the user and part manual?
I have one and need some parts and better knowledge of how to use it.
If so I’ll send you my info. Thanks
 

Koja

New Member
Joined
Jan 16, 2024
Messages
3
Location
Washington
Hi all, New to forum, Been doing excavation work in western wa for a few years and was looking to attch a flail mower to my mini ex until i found a Davis T78, no trencher just the blade. I figured i could adapt it to fit a a flail mower for a skidsteer. Any thoughts? ideas? I'm currently in AZ for the winter but will dig into this when i get back in the spring, Motor is dismantled so its going to take some work, I may just sell it for scrap if its too much a headache
 
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