Old Hy-Hoe

Ilio said:

The position of the plunger definitely doesn't look right. It looks engaged & the linkage is on too much of an angle for the clevis or turnbuckle to be mounted that way.
Unless it has very short travel, but that doesn't make sense, flow wise.
Is there a cap at the back end of the valve body, on the plunger (this is where the spring/self centering is), like the other plungers?
This is the one that is sticking?
Are the hyd. lines that come out of it the ones with the quick connects on them at their ends?
Looks like they tapped into the dipper & right track motor hyd. circuit for the auxiliary hyd. circuit?
The hyd. oil flow from the dipper circuit pump will be twice that of the swing circuit.
There will be an O ring & a wiper (sometimes just a Quad ring) inside the bore of the valve body positioned at either end of the plunger. If the plunger goes too far it can stick there.
If the linkage is too angled (it will likely stick), the clevis should be turned (with the plunger) so it is 90 degrees from where it is shown, or the linkage bent so it's straight (in line) to the bore.
Could be set up for a hammer, but that would reduce the flow to the dipper & you need to use that when you're running the hammer.
If I get home soon enough tomorrow, I'll look at the manual for that machine & see if I can find anything.

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That spool has a very short travel. No cap on the back of the spool. Can see the spool move on the backside also. Looking at the plumbing it goes out to the one quick connect and then the other quick connect is T'd Into the return line i believe. It does not appear to be a bidirectional circuit and Could have been set up for a hammer. Machine has a 2ft rock bucket and i believe the previous own said it was used to dig test pits for some kind of engineering company.

hammerdwn20 said:

That spool has a very short travel. No cap on the back of the spool. Can see the spool move on the backside also. Looking at the plumbing it goes out to the one quick connect and then the other quick connect is T'd Into the return line i believe. It does not appear to be a bidirectional circuit and Could have been set up for a hammer. Machine has a 2ft rock bucket and i believe the previous own said it was used to dig test pits for some kind of engineering company.

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I'm stumped. I looked at some of the old manuals & sales stuff & couldn't see that set up. Must have been for a hammer. I checked out the info. on the Hy Hoe hammer (Hy Hit 9000), but they didn't show the valving, though there is a return line. Be nice to have an old hyd. guy to check it out, hands on. If you're not using it, you could always cap it.
Saw the factory specs. for the regenerating valve cycle time for the dipper. With the valve, stick full in is 3.5 seconds, without the valve, it is 16 seconds. Full out is 5 seconds with the valve & 20 seconds without it.
Saw another cool/weird thing. The difference between the 895 & the 995 Brutes. This is from the sales bulletin for regional managers only, May 27, 1970. Don't quite understand it. just archival stuff.
"As of NOW there are no more green & yellow machines."
"We will use the designation - Model 895 for Green machine - Model 995 for Yellow machine" Factory list price, without bucket $44,900.00 add $1500.00 for the bucket.
Marketing? Go figure what that means!! They were the precursors to the 5000
First machines off the line June 15th, 1970, next 4 available June 30th.
When they started up, full production, in an old streetcar barn, in Milwaukee, they had 12 employees & they produced 10 Hy Hoe Backhoes a month.
They manufactured an awesome 20 ton crane too. The Hy Hoe TC-800 Brute
Love going through that stuff.

Ilio said:

I'm stumped. I looked at some of the old manuals & sales stuff & couldn't see that set up. Must have been for a hammer. I checked out the info. on the Hy Hoe hammer (Hy Hit 9000), but they didn't show the valving, though there is a return line. Be nice to have an old hyd. guy to check it out, hands on. If you're not using it, you could always cap it.
Saw the factory specs. for the regenerating valve cycle time for the dipper. With the valve, stick full in is 3.5 seconds, without the valve, it is 16 seconds. Full out is 5 seconds with the valve & 20 seconds without it.
Saw another cool/weird thing. The difference between the 895 & the 995 Brutes. This is from the sales bulletin for regional managers only, May 27, 1970. Don't quite understand it. just archival stuff.
"As of NOW there are no more green & yellow machines."
"We will use the designation - Model 895 for Green machine - Model 995 for Yellow machine" Factory list price, without bucket $44,900.00 add $1500.00 for the bucket.
Marketing? Go figure what that means!! They were the precursors to the 5000
First machines off the line June 15th, 1970, next 4 available June 30th.
When they started up, full production, in an old streetcar barn, in Milwaukee, they had 12 employees & they produced 10 Hy Hoe Backhoes a month.
They manufactured an awesome 20 ton crane too. The Hy Hoe TC-800 Brute
Love going through that stuff.

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The year they were in that streetcar barn was 1962.
The book says; the first Hy Hoe (Model 380) was designed & produced in 1957 by Elmer Mrozek

any idea on how to decode the serial number? Id like to know what year my machine is

hammerdwn20 said:

any idea on how to decode the serial number? Id like to know what year my machine is

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Wish I could help you, but I'd be shooting blanks! Anybody's guess at this vintage. Probably 1968-70?
There is a book, with specs/serial #'s I've seen, but I wouldn't know how to source it. I know it existed, (i was too cheap to buy it at the time) but the only two parts guys I knew, that had it, aren't around anymore. They worked for Fortress-Allat & later sold Berco undercarriages (crane/shovel & tractor undercarriages) through Equipment Sales & Service. Dealt with a sales rep. from Ritchie's once who had a book too. A lot of that older stuff stayed in print (paper) & never got uploaded. really miss the old parts guys. They could tell you in a heartbeat!!
I looked at that valve set up of yours again. Found stuff with the machine being used as a power plant for a boring machine, brusher, drill... & some other Hy Hoe attachments.
Could very well have been for a hammer. I saw one setup, somewhat similar, that had powered a compacter attachment.

anyway you could copy that stuff to PDF? Id be interested in seeing it. Ive got a parts book and some original sales brochures and spec sheets. I buy this stuff off ebay as it pops up.

hammerdwn20 said:

anyway you could copy that stuff to PDF? Id be interested in seeing it. Ive got a parts book and some original sales brochures and spec sheets. I buy this stuff off ebay as it pops up.

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Always thought that would be a great idea. I'm hoping to have the time over the winter to copy & upload some of that stuff. Way better for history to be out there & not in a musty old box.
I compact way too many boxes of peoples memories/history's at the local landfill site & hate the idea of all that stuff being buried one day.
I still have some of the shop manuals for my 1949 Mercury M68 1 ton truck. Sold the truck (still kicking myself). You'd never get that from the Ford dealer.

Ilio said:

Wish I could help you, but I'd be shooting blanks! Anybody's guess at this vintage. Probably 1968-70?
There is a book, with specs/serial #'s I've seen, but I wouldn't know how to source it. I know it existed, (i was too cheap to buy it at the time) but the only two parts guys I knew, that had it, aren't around anymore. They worked for Fortress-Allat & later sold Berco undercarriages (crane/shovel & tractor undercarriages) through Equipment Sales & Service. Dealt with a sales rep. from Ritchie's once who had a book too. A lot of that older stuff stayed in print (paper) & never got uploaded. really miss the old parts guys. They could tell you in a heartbeat!!
I looked at that valve set up of yours again. Found stuff with the machine being used as a power plant for a boring machine, brusher, drill... & some other Hy Hoe attachments.
Could very well have been for a hammer. I saw one setup, somewhat similar, that had powered a compacter attachment.

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Over the winter I looked up the engine serial number and it makes the machine a 1968. I used it to unload an insley front shovel in December and to work on removing the dipper so i could do some other work to it as well. In the next few months i need to go after the rear main seal on the detroit and fix that hydraulic leak, replace the throttle and shutdown cables and eventually throw some paint on it.

So i put up a little video of the Hyhoe digging a hole with it to get used to the controls. Heres a video

I just picked up a Hy hoe 5000tt. I was wondering if anyone has any operating advice with the swing function? I've never run a "free swinger". What are some tricks on landing the dirt on point? Is it hard on the swing motor to bump stop the thing?

Dominion 410 said:

Hy-Hoe

This picture was taken near Arnprior,Ontario about ten years ago.I believe they were also manufactured near Toronto,but not sure.There was a fence so I could'nt get to close for a more thourough look.
Looked alright and a decent size undercarriage.Single exhaust,6-71 power?

Dominion

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I believe there was a plant in Arnprior , Ont. I own a 680 and it's single exhaust is powered by a 4-53 screamer .

knckitdwn said:

I just picked up a Hy hoe 5000tt. I was wondering if anyone has any operating advice with the swing function? I've never run a "free swinger". What are some tricks on landing the dirt on point? Is it hard on the swing motor to bump stop the thing?

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Dig yourself a flat pad to operate from , as long as the machine is level it's not too bad . If you're on a slope gravity and momentum are not your friend , you'll have to do some "other way" lever work to target your pile . I own a 680 . I try to avoid any "bump stop" action , loosing the ring gear would probably turn it into a "by the pound" machine . One thing to check is the oil level in the bell housing gear box for the pumps . There is supposed to be a sight glass on the end plate where the pumps are mounted , mine had been replaced by a frost plug , I had to re bearing all the pumps and drive gear , not cheap or fun . One thing I found was that the fuel has a long walk to the pump and if the machine sits unused for a while gravity takes it's tole , I would run the battery dead trying to start it . My cure was a small low pressure 12 volt pump near the tank , one that can by pass when not running . I turn it on for ~ 1 min. before starting and it leaps into action on the 3rd turn . I can then turn the electric pump off and it runs fine although I have forgotten to turn it off a few times and it doesn't seem to care . In winter (I'm in Queerbec") it loves it's Ginseng (ether) .
Basically they're tough old dinosaurs , you won't win any races but you can dig a hole .
I think the first ones were built during the transition from cable hoes and it seems the design engineers copied a lot of the stupid stuff from the cable machines , free swing , flat pad pin hinge undercarriage w/ dinosaur drive sprockets . I suppose they were looking for operator / buyer acceptance but they went to a lot of trouble and expense to make things a lot worse than they could have been . I put a pic of Dino .

hammerdwn20 said:

So i put up a little video of the Hyhoe digging a hole with it to get used to the controls. Heres a video

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Nice working machine. Good upgrade from the 6018 lol

Nothing like a screaming Detroit. Unless want to go deaf a muffler is well advised. Looks readily functional other than traction motors not locking when digging but not uncommon.

knckitdwn said:

I just picked up a Hy hoe 5000tt. I was wondering if anyone has any operating advice with the swing function? I've never run a "free swinger". What are some tricks on landing the dirt on point? Is it hard on the swing motor to bump stop the thing?

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Glad you made it over here from facebook. Theres a handful of Hyhoe owners here thank can help you out with your machine.

DMiller said:

Nothing like a screaming Detroit. Unless want to go deaf a muffler is well advised. Looks readily functional other than traction motors not locking when digging but not uncommon.

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Ive got a few odds and ends to fix. Muffler is on the list to replace the air tank that's currently being used at the muffler. There are drum brakes on each final drive and on the swing gearbox operated by master cylinders under the seat. A line lock valve keeps the pressure in the wheel cylinders. Right now none of that is hooked up. I also have to get throttle and shut down cables, a couple windows and then it will be paint time.

mikebramel said:

Nice working machine. Good upgrade from the 6018 lol

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My equipment has gotten quite a bit bigger since the 6018. Just couldn't cut it anymore. Now I've got 2 excavators, Dozer, track loader, 270a backhoe and an Insley Front shovel.

hammerdwn20 said:

Glad you made it over here from facebook. Theres a handful of Hyhoe owners here thank can help you out with your machine.

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Thanks! any info is good info. It's a totally different animal than what I grew up on. I ran it for a bit the other day. There is a hiccup in the bucket spool valve. I'm going to have to pull it out and see what is catching. Does anyone know if there is a detent going either way with the bucket? I really have to stomp on the pedal. Im curious what could be hanging up inside besides done o rings and backers.

Also if anyone has an owners manual that can be copied I would be interested in it.

knckitdwn said:

Thanks! any info is good info. It's a totally different animal than what I grew up on. I ran it for a bit the other day. There is a hiccup in the bucket spool valve. I'm going to have to pull it out and see what is catching. Does anyone know if there is a detent going either way with the bucket? I really have to stomp on the pedal. Im curious what could be hanging up inside besides done o rings and backers.

Also if anyone has an owners manual that can be copied I would be interested in it.

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did you remove the linkage from the spool valve and make sure nothing is binding there first. there should be no detents on the spool

hammerdwn20 said:

did you remove the linkage from the spool valve and make sure nothing is binding there first. there should be no detents on the spool

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I did remove it. It was free as can be. Probably need to pull the valve and see what is going on. I was not sure if there was by chance a bucket return detent. Thanks for the info. I know it is to be smooth operation.

Anyone have a lead on a bucket valve for a 5000tt?