My splitter build

[Haywire Haywood]

On a fixed displacement pump the flow has to be there regardless of hose sizes unless the suction side if gulping air along with fluid. Tubing and hose sizes will affect no load pressures is all. How big is the reservoir and is the pump below it for good flooded suction?

Reservoir is 15 gallons. The pump is well below fluid level.

Your comment about it gobbling air gave me an idea that I'll try this afternoon. I don't have the reservoir completely full (about 11 gallons) and I had the shop weld a perforated baffle plate into it between the return and the intake. If the fluid is not passing through the baffle fast enough, I might have a high fluid level on the return side and a low fluid level on the intake side resulting in the pump getting some air. Air in the line might account for the return line jumping like it does. I'm going to fill it full and try it again. I forgot that I hadn't put those last few gallons in.

Edit... it took more than I thought it would. It took all of my remaining 5 gallon jug. I wanted to crank it, but I have neighbors now and the splitter running at 5:15am might not sit well with them. This means that I have right at 17.5 gallons in the system. Tank and lines hold more than I accounted for.

:agree2:

I think you might have gotten a cobbled pump... take it apart and measure the gears. Then compare that to the specs for the pump...

That's still pretty respectable cycle time though... that machine will still likely wait on you more than you will wait on it.

I emailed Haldex to see if they offer any pump services and if so how much a repair would be. Before I did that I would take it to the Hydraulics shop to see if they had a flow meter that they could test it with.

 

[kevin j]

If you take the pump apart, any damage should be apparent.
If it is not operating clearly on both sections (28 gpm) , or one section (7 gpm), but at some intermediate state, there could be leakage and worn parts.

If worn, the leakage should vary with load pressure. Yours seems to be constant flow at 16 gpm loaded or not? or has it only been under no load flow?

You have a pretty good flowmeter now: known cylinder moving known distance in known time. It is fairly easy to add load by adding a needle valve to the hose lines to create load and compare times/speeds/flows, but it does require some knowledge and a steel high pressure valve.


As far as having wrong pump or wrong parts, take some measurements across the gears like in the attached file. There is a way of approximately getting the displacement from the the dimensions and geometry. caution, I have had this formula around a long time, and seen referenced in several locations, but have not personally done a pump of known size to verify the formula.

I have a barnes 28 that I could pull and compare numbers with you. would take a week or so.

edit: 11-16 gpm are in one frame and 22-28 are in a larger frame. so parts won't be put in the wrong pump. dimensions are in the haldex site. Basic frame and gear sizes are the same in a frame, the gear set and housing are just longer/thicker.

You could also run the hose into a graduated cylinder or cup and turn it by hand and measure the cubic inches of oil out.

 

[husky362]

what size return line

how much oil is getting out of the valve back to the tank,,,,,,, i ran 3/4 hose on all my splitter with a few 90's at the valves [the 2'&3' hose was some freebie stuff from a hydraulic company i do business with] i made them work, or it would all be strait fittings, when i started testing mine it is slower than i felt it should be, but i feel that the 3/4 fittings in the return line and 3/4 fitting's on the suction line are slowing it down I'm also using a single stage pump with a 1x12x12 and 4 way wedge behind it ,,,it never slows down I'm thinking its pushing around 10gpm @2000 not real fast,,but it will keep you, and a friend busy working keeping it feed

 

[Haywire Haywood]

It was sucking air... I ran it this afternoon and gained 2 seconds on the cycle, so I am up to almost 21gpm. The return line stopped jumping too.

You can tell when it unloads to the high pressure side, the tone of the engine changes. I ran it though some crotches this evening to make it unload.

I can't see me disassembling the pump. I might give it to a shop to test and repair, but I don't feel comfortable doing it.

Pics and a short vid coming soon... my camera only takes 15 second clips so I need a second set of hands.

The table wasn't working out too well, didn't catch the wood. Doesn't matter now anyway. A chunk of wood got caught between the ram and the edge of the table and broke it off the splitter. Bolts went pop.. welds went pop. Need a new design apparently... LOL

Ian

 

[wkpoor]

HayMan, don't bother with anymore testing or tearing down that pump. Its just fine. Whats the rpm on the tag say for 28gpm. Most likely you are running a little slower. Also do you have a 1" goesinya hose? Sorry if you answered that a hundred times already but you owe me one since I fixed your splitter man! heheheheheheh. And don't forget if you want to test the pump just dead end the cylinder. That will max it out instantly.

Now when you bringin that monster up for a split off? Is it road worthy or does it need a trailer? Trailer be best anyhow for distance.

 

[Haywire Haywood]

28gpm @ 3600rpm. The engine is now back running at 3400 so 26 is what it should be making.

elbows.. one at the pump, one at the intake of the valve, both work ports are 90s and one of the cylinder connections is a 90. Cylinder connections are 1/2" NPT, so they also have 3/4 to 1/2 adapters.

The hoses are all 3/4 except for the vacuum side of the pump... that one is 1 1/4".

I think I'm done fiddling with it except for getting the quieter exhaust hooked up and rigging a table that won't get torn off

Ian

 

[husky362]

funny how metal bends

I've been playing with a 6 way using up some old 3/8 steel plate faster to grind a angel on to see how it split's, works ok then i get brave and push it and mangeled it in oak knots.. sheared the ear off once so far my welds are holding ive had to add support to the push plate cause ive bent the 1/2" plate playing before it was finished

 

[Haywire Haywood]

Ok, here's a few pics and a couple short clips. The wood is no challenging species.. straight grained and easily split.

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[Rookie1]

Very nice Haywood. I love it. I like the swivel hitch.the big engine and the color too. Nice job! Looks fast too. I wonder how the fuel mileage will be with that engine. Oh ya,in these parts up north we spell it"on" and "off" but Im OK with your spelling. Did I say nice job already?

 

[England14]

Is it just me or is the motor running a little slow? Faster RPM would mean more flow if it is running a little slow.

 

[Haywire Haywood]

It's running 3400. That is with the governor maxed out. The carb could use a rebuild kit and a good cleaning. You have to choke it a little to get it to run as it is.

Ian

 

[Haywire Haywood]

Oh ya,in these parts up north we spell it"on" and "off" but I'm OK with your spelling.

LOL.. my idea of a joke. I bet you don't spell start "GRRR" up there either.

Ian

 

[Rookie1]

It's running 3400. That is with the governor maxed out. The carb could use a rebuild kit and a good cleaning. You have to choke it a little to get it to run as it is.

Ian

Id pull that plug on the side of the carb Haywood. I believe its 5/8s that should drain the floatbowl. That may be all you need.

LOL.. my idea of a joke. I bet you don't spell start "GRRR" up there either.

Ian

No we dont but I like it too. My BIL spells F U phuck ewe. So its all good.

 

[England14]

Lookin good!!! Now for the log lift and catch table.

Looks like you have about a 6 second cycle from the video. Don't know about you, but I could not keep up with that.

 

[Steve NW WI]

LOL.. my idea of a joke. I bet you don't spell start "GRRR" up there either.

Ian

How's this:

Photoshop skills are very few, as you can see!

 

[wkpoor]

Very nice Ian, Gotta love that speed. Nice pile of wood going there too. Hey, thats looks like a decent place to hold a GTG.

 

[Haywire Haywood]

Very nice Ian, Gotta love that speed. Nice pile of wood going there too. Hey, that looks like a decent place to hold a GTG.

thanks..

The problem with me holding a GTG is no tractor to move whole logs and no good supply of logs. I scrounge everything I get here and there, one tree at a time, and it always comes home in 16-18" pieces.

Ian

 

[Ol' Brian]

I was watching those videos, and I thought 5 O'clock Charlie was coming!!! :hmm3grin2orange:

Seriously, great looking splitter!! Now, that thing is screaming "LOG LIFT"!!!

Git 'er Done!

How warm is the fluid getting with your high flow rate?

 

[SWI Don]

The table wasn't working out too well, didn't catch the wood. Doesn't matter now anyway. A chunk of wood got caught between the ram and the edge of the table and broke it off the splitter. Bolts went pop.. welds went pop. Need a new design apparently... LOL

That's what happens when I stay away for a while. I could have told you your table's splits were numbered. I had already gained that wisdom first hand. I just got my table reasonably straighted out a couple weeks ago and hopefully will have new mounts welded on later this weekend. The new location will be lower to keep it below those wayward knots that like to catch the table.

Otherwise, a good looking splitter. Nice clean design with suspension so you can haul a$$ down the road.

Don.

 

[wkpoor]

Piss on the log lift. HW has a nice fast saw to quarter up those bigs in less time than it takes to srew with the lift.
BTW Ian I am a scrounger too . I just try to avoid anymore cuttin than I have to away from home.