• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Old Hy-Hoe

Ilio

Member
Joined
Sep 30, 2010
Messages
23
Location
Perth Ont. Canada
Occupation
Construction
Do you have cables or straight linkage going to the spool? I've resolved some sticking issues, that give the illusion of a detent, by servicing these. Also, be it pedal control or lever, there are the bushings on the shaft below the cab floor, including lack of grease. A bur in the mating pieces of metal cam cause sticking. It's unlikely that it would be the plunger, or the spool, but possible. The bore is always full of oil & supported along its entire length. Haven't had mine apart for a while, but there is only one 'O' ring & a wiper at each end of the plunger in the spool body.
I would also take the cap off at the rear & check the condition of the spring.
There is an actual 'detent' on the back of the spool, that keeps (returns) the plunger to the 'not engaged/neutral' position, once you release the control lever from the back or forward position. You could have a 'sticking feeling' there, that makes you have to push or pull to overcome it. There are a few ball bearings in there also. This is the only place & the most common place, other than the ones I mentioned, that could cause the plunger to stick.
If a parts breakdown picture from the parts book would help you I could post that.
If there is damage there & you can't source the part, I may have one, but I'd check those things first.
 

knckitdwn

Member
Joined
Jun 23, 2019
Messages
6
Location
central illinois
Do you have cables or straight linkage going to the spool? I've resolved some sticking issues, that give the illusion of a detent, by servicing these. Also, be it pedal control or lever, there are the bushings on the shaft below the cab floor, including lack of grease. A bur in the mating pieces of metal cam cause sticking. It's unlikely that it would be the plunger, or the spool, but possible. The bore is always full of oil & supported along its entire length. Haven't had mine apart for a while, but there is only one 'O' ring & a wiper at each end of the plunger in the spool body.
I would also take the cap off at the rear & check the condition of the spring.
There is an actual 'detent' on the back of the spool, that keeps (returns) the plunger to the 'not engaged/neutral' position, once you release the control lever from the back or forward position. You could have a 'sticking feeling' there, that makes you have to push or pull to overcome it. There are a few ball bearings in there also. This is the only place & the most common place, other than the ones I mentioned, that could cause the plunger to stick.
If a parts breakdown picture from the parts book would help you I could post that.
If there is damage there & you can't source the part, I may have one, but I'd check those things first.
It has both types of linkages cable and solid rod. I went ahead and pulled the whole valve out. A hose came internally and a bit of wire baked itself up at the valve. I tried doing it in the machine but I made it worse driving the valve out. I took it to a friend who does hydraulics and he polished the high spot or of the valve. So I will be reinstalling it later this week. Hopefully it does not leak to much but we will see.

I was able to talk to a husco engineer and he sent me the print on the spool if anyone ever needs one made. That may be a winter project if this does not work out well.
 

Rob Stute

New Member
Joined
Aug 4, 2019
Messages
1
Location
Brussels Ontario
Do you have cables or straight linkage going to the spool? I've resolved some sticking issues, that give the illusion of a detent, by servicing these. Also, be it pedal control or lever, there are the bushings on the shaft below the cab floor, including lack of grease. A bur in the mating pieces of metal cam cause sticking. It's unlikely that it would be the plunger, or the spool, but possible. The bore is always full of oil & supported along its entire length. Haven't had mine apart for a while, but there is only one 'O' ring & a wiper at each end of the plunger in the spool body.
I would also take the cap off at the rear & check the condition of the spring.
There is an actual 'detent' on the back of the spool, that keeps (returns) the plunger to the 'not engaged/neutral' position, once you release the control lever from the back or forward position. You could have a 'sticking feeling' there, that makes you have to push or pull to overcome it. There are a few ball bearings in there also. This is the only place & the most common place, other than the ones I mentioned, that could cause the plunger to stick.
If a parts breakdown picture from the parts book would help you I could post that.
If there is damage there & you can't source the part, I may have one, but I'd check those things first.
 

td25c

Senior Member
Joined
Feb 14, 2009
Messages
5,250
Location
indiana
TD-25 you've gotta upload your videos on youtube the picture is much better and you'll have a better audience, love seeing an old beast like that still giving it's best and hearing that screaming Jimmy.

Here ya go … 1978 3300 HY- Hoe doin it's thing .

" Draining the Swamp " :)



Swamp is full of low & high areas . HY- Hoe excavator wades out in the muck & digs a channel through the red tape allowing the water to drain . LMAO ! :D

 

hammerdwn20

Well-Known Member
Joined
Feb 18, 2008
Messages
230
Location
pa
Occupation
pipeline
Here ya go … 1978 3300 HY- Hoe doin it's thing .

" Draining the Swamp " :)



Swamp is full of low & high areas . HY- Hoe excavator wades out in the muck & digs a channel through the red tape allowing the water to drain . LMAO ! :D

nice hope you keep posting videos of your machines! I subscribed
 

CatSeller

New Member
Joined
Aug 29, 2019
Messages
1
Location
NW Ohio
If anyone in NW Ohio is looking for a HyHoe, most likely for parts, there is one about to head to the scrap yard in Fremont, Ohio. I didn't grab the model #, but its a later model one with the typical excavator style undercarriage. I did grab a pic, but I don't know that I can post yet. I'll try. PM me for more info. The boom is quite patchy...
 

Attachments

  • P1390776.JPG
    P1390776.JPG
    2.7 MB · Views: 58

hammerdwn20

Well-Known Member
Joined
Feb 18, 2008
Messages
230
Location
pa
Occupation
pipeline
If anyone in NW Ohio is looking for a HyHoe, most likely for parts, there is one about to head to the scrap yard in Fremont, Ohio. I didn't grab the model #, but its a later model one with the typical excavator style undercarriage. I did grab a pic, but I don't know that I can post yet. I'll try. PM me for more info. The boom is quite patchy...

maybe a model 5000
 

Ilio

Member
Joined
Sep 30, 2010
Messages
23
Location
Perth Ont. Canada
Occupation
Construction
Hard to tell by the pic, but, if it's a 5000, it'll have 2 upper carrier rollers (per side). The 6000 has 3.
Looks like a 5000TT
 

knckitdwn

Member
Joined
Jun 23, 2019
Messages
6
Location
central illinois
well how'd you make out?
Just finished it up. It's up and going. We filled the scratched and polished it down. It works for now. Since I had all the oil out I went ahead and resealed a leaking track motor and resealed that whole valve body. And wow that thing takes a bunch of oil. I was going 60 gallons would do it just to get by. I was not even close to the sight glad yet.
 

hammerdwn20

Well-Known Member
Joined
Feb 18, 2008
Messages
230
Location
pa
Occupation
pipeline
Anyone have a factory 36" bucket for a 685B. 3" pins and 12" wide stick width? Figured id try finding one before adapting a bucket from a 160 size machine.
 

Ilio

Member
Joined
Sep 30, 2010
Messages
23
Location
Perth Ont. Canada
Occupation
Construction
I do have a few Hy-Hoe buckets. One is brand new (factory original), never used, with the Hy-Hoe name on the side. The rest are for Hy-Hoe but made by Nye... Sizes range from 28" to 42" Have to check for sure once the snow is gone. All but one are for 3" pins. One bucket has 2 3/4" inch holes. That would have to be line bored to 3".
Once the snows gone, I'll check it out & decide what I'd like to do with them. If you're still looking.
 

Ilio

Member
Joined
Sep 30, 2010
Messages
23
Location
Perth Ont. Canada
Occupation
Construction
Anyone have a factory 36" bucket for a 685B. 3" pins and 12" wide stick width? Figured id try finding one before adapting a bucket from a 160 size machine.
Check out my last post (meant for you). The new unused Hy-Hoe bucket I spoke of is identical (except for being new), to the bucket on my old 685 B, that you can see in a pic I posted on page 10 of this forum, on Aug. 11, 2018. My memory is that it's a 42" bucket, with a 1 1/8 cubic yard, struck, capacity. The others range from 3/4 to 1 cubic yard & measure 24" to 40" I've had really good luck with that bucket. Was well matched for my 685 & I got both, new, direct at the Hy-Hoe dealer/factory (now long gone!). Other than an Esco.., definitely the best buckets I've had.
I may be switching the bucket shown on the same pic, on the 5000 TT. That bucket (that I retrofitted) came off a J.D. 892. Capacity on that is around 1.5 + cubic yards.
 

hammerdwn20

Well-Known Member
Joined
Feb 18, 2008
Messages
230
Location
pa
Occupation
pipeline
im still looking here and there. I was offered a bucket off a warner swasey but im waiting on the owner to decide what he's doing with it. Im in no hurry.
Frank
 

dejong1691

New Member
Joined
Sep 30, 2020
Messages
1
Location
guelph
Hello everyone, I'm new to this site. I just purchased my first hy-hoe 3300tt. Runs good so far, I don't have much time on it but it seems like a well taken care of machine.
 

Ken Carlsen

Member
Joined
Mar 27, 2020
Messages
14
Location
United States
Hey guys. I've been posting over in the other Hy Hoe discussion https://www.heavyequipmentforums.co...inery-company-milwaukee-wi.52519/#post-997729, but looks like there's a bit more activity here so I'm moving over.

I've been working on getting a 680 out of the woods and have been fighting through hydraulic leaks from decades of corrosion on the tubing. I'm looking for recommendations to top off the hydraulic tank as it's about half full with the bucket and dipper fully retracted, the boom 3/4 retracted, and several sections of pipe drained. I don't know what was in there and I'd prefer just a quick fix to get it home where I'll pull it apart and do a proper flush of the systems and replace with good clean fluid.

Also, I think it was on this thread but I remember reading something about checking oil level on the drive gears for the hydraulic pumps (it has a Cotta PD-1429) by inspecting through the mushroom breather. It's hard to see down in the case, but it doesn't appear there is much or any oil at all. No signs of rust or anything inside and it looks oily, but I'm concerned about the oil level if there should be one. If I do add oil, what type of oil would be recommended and how do you check for proper fill? Or is it lubricated with the hydraulic oil?
 

Alganon

Member
Joined
Aug 2, 2012
Messages
8
Location
Rigaud qc. Canada
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.:D
Looked alright and a decent size undercarriage.Single exhaust,6-71 power?

Dominion
I beleive there were some made in Arnprior for the Canadian market . I have a 680 and it's powered by a 4-53 .
Alg
 
Top