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Maxjax Installs: Post Here

JohnnyK8

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Just got my epoxy anchors installed and I am very nervous about the result.
My question is how do you know if they are set good enough?

Thanks

Sounds like you did it by the book. The fact that you had barely enough left tells me you filled the holes with enough goop. I bet they even mushroomed out a little at the bottom making it even better.

Let's it sit for 24 hrs, thread in some bolts and torque them down. You'll be fine bud. If they spin out pull it out drill the epoxy out and get a new tube from Fastenal or Menards squirt and set it again. No worries. You did the drilling. That's the toughest part.

BTW - pics or it never happened



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syclone50

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Lol at the pics Johnny, I will get some up.
Thanks for the encouragement, I just get a OCD with this stuff
 

wachuko

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Hey guys, I tried to search through this thread a bit but didn't find the exact answer regarding power.
I understand this works on a standard 110v outlet, with a 20amp breaker(per maxjax website).

Does this 110v outlet need to have it's OWN 20amp breaker, and the rest of the outlets in my garage need to be on a separate breaker?

Mine is plugged to the same circuit everything else is in the garage... it has not even tripped the GFI outlet... those usually go before the breaker...
 

syclone50

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Ok so I torqued them down and wouldnt you know it the LAST one started to spin on me. I am going to yank it out and redo it.

The question is how do you know if the others, that DID torque, are actually good to go. I guess if they torque down then they are good?!!??!?
 

JohnnyK8

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Ok so I torqued them down and wouldnt you know it the LAST one started to spin on me. I am going to yank it out and redo it.

The question is how do you know if the others, that DID torque, are actually good to go. I guess if they torque down then they are good?!!??!?
What did you torque them to? 80-90 lbs? If so you are good

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aleccolin

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Jul 12, 2009
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101
SOS - I'm about done with this POS.

Got mine installed, no issue structurally, anchors worked great, everything is dead nuts aligned and plumb, the problem is hydraulics.

It lifts a little uneven, not out of spec (which is 1.5" WTF), but it seems slower than I've seen in all the videos and she screams like a banshee (not binding, it's the cylinders making noise). Maybe that's normal, but the lifting isn't just uneven, the cylinders don't even move at the same rate so it gets MORE uneven as you go up, and there's always one that moves well in advance of the other initially.

However the much bigger problem is one post will NOT return fully to the ground by gravity. One is fine, the other still holds pressure against the pads and the only way to get it down is to zip tie the release valve so I can go stand on it and jump up and down which is totally ridiculous. There is no binding, all slide block bearing surfaces are greased up like a hog and I can move the carriage assembly by itself up and down no problem manually, so it's not an issue of mechanical interference, or the slide blocks in backwards or anything like that. It's simply not flowing BACK through the flow divider. One time it got WAY out of level going down and I had to block it up and remove the bleeder screw on the high side to get it to drop, dangerous and a huge mess to clean up. I even swapped the hoses to see if it was the flow diverter/hose/couplers or the cylinders and no change, so I suspect a bad cylinder.

Anybody got any other ideas? Anything I can adjust on the power pack? At my wits end. I can get a car in the air, but can't get it back down safely.

Oh and before you ask, I bled the hell out of it, 8 or 10 trips up and down, there was no air in the cylinders for sure. I'm wondering about these QDs though, they are not the same style as others I've seen in pics and are definitely not full-flow, they look restrictive as hell. Worth looking for better ones?

Sorry for the wall of text, been two nights ******* with this damn thing now.
 

aleccolin

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Also, the flow divider that Dannmar uses appears to be a Delta PM2, can anybody confirm this?

Hydraulics are both dead simple and enigmatic at the same time. **** this is depressing, just want my **** to work properly.
 

JohnnyK8

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Also, the flow divider that Dannmar uses appears to be a Delta PM2, can anybody confirm this?

Hydraulics are both dead simple and enigmatic at the same time. **** this is depressing, just want my **** to work properly.
Not sure if this will help. Have you considered a regulator on the side that is too fast. Perhaps slowing the flow with even things out?

http://www.globalindustrial.com/p/t...amic-jp-fc-micrometer-adjustment-knob-3-8-npt

What has Danmmar said about this? Are they any help?

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Mr onetwo

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Confirm a hydraulic issue by switching the hoses side for side.If the problem switches sides then it is either the QD's or the flow divider itself. I would get better QD's. My MaxJax has never given a bit of trouble.
 

aleccolin

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Not sure if this will help. Have you considered a regulator on the side that is too fast. Perhaps slowing the flow with even things out?

http://www.globalindustrial.com/p/t...amic-jp-fc-micrometer-adjustment-knob-3-8-npt

What has Danmmar said about this? Are they any help?

Sent from my SCH-I545 using Tapatalk

I can pick up an adjustable flow restrictor to throw on the "fast" side, but that's also the side that won't come the **** down like it should so it might help the uneven lifting but probably not the real issue which is VERY uneven lowering. Dannmar hasn't gotten back to me yet, left a message and just emailed Gabe.

Confirm a hydraulic issue by switching the hoses side for side.If the problem switches sides then it is either the QD's or the flow divider itself. I would get better QD's. My MaxJax has never given a bit of trouble.

I swapped the hoses, behavior was the same, which I why I'm thinking it's the cylinder.

Dissatisfied with the ******** Chinese hardware that comes with this kit (seriously, the hex on the QD isn't even true, fits a 15/16" wrench one way, but not another) I decided to upgrade. This morning I picked up some nice Faster FF quick releases and had some 4' hydraulic hoses made with one 1/4" NPTM and and one 3/8" NPTM end to eliminate the stack of fittings at the base of the piston. I took a pic of the fittings, the hoses are just hoses.

vmGZvXG.jpg


One thing I noticed this morning when removing the fittings on the cylinder; I went to rotate the piston relative to the cylinder body and the goddamn seal plate wasn't even tight, you could unthread it with the piston. Whatever 12 year old Chinese kid put this stuff together needs an actual adult checking behind him. I'll use a drift to tighten that up as much as I can, but damn guys, get your **** together.
 
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aleccolin

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FYI Gabe is no longer with Dannmar. Talked to Miguel, have to call him back tonight when I get back to the shop.

877-432-6627
 
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tdott

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Guys, what size epoxy were used? Just making sure I buy the right sizes if I don't get the 'kit' from GES. Stanley supply has the anchors for $105, $16.50/10oz tube.

Is it two 10oz tubes needed for 10 anchors?
I saw there is also a 28oz tube, was it 2 of those that were needed?

I remember reading two tubes were needed, just not sure what size they were.
 

monty007

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Alec, sorry to hear about all the trouble you are having. What fluid are you using? Some people were using ATF but I used some good quality Hydraulic fluid with no issues. The other thing I noticed about my flow divider is that the threads were full of teflon tape. I spent about 10 mins with a tweezer getting all of it out on all 3 of my ports.

If you switched the hoses then it must be a bad cylinder. I'm sure Danmar will send you a new one and make it right. Please keep us posted on the outcome. Sending positive vibes your way bro!!
 

monty007

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I forgot to mention - the ports of my cylinders were also filled with cheap teflon. If you are going to use Teflon to seal the ports - please remove all of the old **** and put good quality tape on there (what I did). I'm thinking you got a bunch of old ****** teflon stuck in the cylinder and it is partially/completely blocking the port and thereby creating the flow issues.
 

JohnnyK8

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Guys, what size epoxy were used? Just making sure I buy the right sizes if I don't get the 'kit' from GES. Stanley supply has the anchors for $105, $16.50/10oz tube.

Is it two 10oz tubes needed for 10 anchors?
I saw there is also a 28oz tube, was it 2 of those that were needed?

I remember reading two tubes were needed, just not sure what size they were.
I used 2.5 9.7 oz for my 12 anchors on my c7000

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syclone50

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What did you torque them to? 80-90 lbs? If so you are good

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I talked to Maxjaxusa and they told me as long as I am getting 90-95 lbs then I am good to go. I still have to redo the one that came loose but as for now the others are good to go:thumbup:

The quick connects DO leak a bit when you take them on and off. Where is the best place to order a good replacement for them?

Thanks!
 

JohnnyK8

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Pretty any hydraulic supply house will sell dripless ones. They are about $45 for each piece if I remember.

I have moved my posts exactly one time since installing.

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aleccolin

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Alec, sorry to hear about all the trouble you are having. What fluid are you using? Some people were using ATF but I used some good quality Hydraulic fluid with no issues. The other thing I noticed about my flow divider is that the threads were full of teflon tape. I spent about 10 mins with a tweezer getting all of it out on all 3 of my ports.

If you switched the hoses then it must be a bad cylinder. I'm sure Danmar will send you a new one and make it right. Please keep us posted on the outcome. Sending positive vibes your way bro!!

I'm using AW32 with about 1/2 qt of CAT anti-chatter additive. With the additive the cylinders went from wailing to whisper quiet...well one is anyway, the other still makes some noise...I'll get to that in a sec.

I always use PST on pipe thread for pneumatics and hydraulics, so no teflon tape anywhere.

I forgot to mention - the ports of my cylinders were also filled with cheap teflon. If you are going to use Teflon to seal the ports - please remove all of the old **** and put good quality tape on there (what I did). I'm thinking you got a bunch of old ****** teflon stuck in the cylinder and it is partially/completely blocking the port and thereby creating the flow issues.

I did do cleanup on the cylinder ports, no real issue there.

Possible Cause:

Talking through it with our shop foreman yesterday (construction equipment, he knows hydraulics and we rebuild cylinders in-house) he said it's definitely the cylinder, could have rolled a seal inside, but it may be something as simple as the breather being blocked by paint or debris. I asked Dannmar for an exploded diagram or any information on the cylinders and they couldn't give me anything, just said they're made "overseas" lol yeah that means China, got it.

Since the only ports are one in the piston and the bleeder at the top, the breather has to be in the cap at the piston end, and given the fact that it only has trouble on descent it makes sense because it's gravity doing the work, not hydraulics. I'm going to pull the cylinder out this weekend and check. Dannmar offered a cylinder seal kit, and did say if it was the cylinder they could replace it, but might be something simple.

To be continued...
 

aleccolin

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Update to the above, turns out there is not a breather in the cylinder end cap like I thought, there is a weephole drilled in the cylinder body below the lift carriage land and this is what allows the cylinder body to fill and exhaust air when raised and lowered. It was completely unobstructed on both cylinders, so the primary suspect now is a rolled seal. I dropped it off with the shop to check out this morning.
 
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monty007

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any updates to your cylinder problem Alec?

I used my MaxJax this weekend to service my Acura MDX. I was a bit concerned because of the weight (5633 lbs dry) so it was awfully close to the 6000 lbs limit. I didn't lift it past the 1st stop but it lifted it without a problem. Did the brakes all the way around, oil & filter, tire rotation.
 
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SpecBC

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So I finally bit the bullet since I haven't had time to install the max jax and hired some professionals to do the install. Which is semi annoying because I could have just hired them last December at this point...but anyways

The issue I just ran into is they were apparently going to hook up the hydraulics and there was a plastic plug in the cylinder to keep debris out that apparently broke off and they were unable to remove it. They want me to see if I can get a new cylinder to finish the install as they don't want to screw up the threads. Technically it is less than a year(I bought it last Christmas) and they called Max Jax but does this seem reasonable?

Who do you think I should speak with about this and does it seem like something they may be willing to do? I'm super bummed since I was finally thinking I was getting to use this and then right at the end this happens. :(

Also, somewhat a technical question but is the max height technically limited only by the fluid amount or what stops it at 45" vs like 50" or something.

Thanks!
Ben
 

JohnnyK8

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There has to be a way to remove that plug bud. There are guys on this forum that can do amazing things with tools.

Please take a picture of this plug and we'll figure it out.

My guess is we can tap it and back it out.

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SpecBC

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There has to be a way to remove that plug bud. There are guys on this forum that can do amazing things with tools.

Please take a picture of this plug and we'll figure it out.

My guess is we can tap it and back it out.

Sent from my Nexus 7 using Tapatalk

Great news! The install company contacted Dannmar and they are sending out a new cylinder! This is super awesome, and the installers made a point to say how great their support/service was so that is great to know.

I am pumped I won't have to wait too long now to send it back and then get another one. :D

Ben
 

tjc1965

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Jan 15, 2011
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Finally finished my install yesterday, here's some notes...sorry no pics, if I can figure best way to add I will.

- 1960's New England tract house, 2 car garage - well 2 cars if you don't mind your wife dinging your door every time she gets out. Better as a one car with working space. 16'x 7' door is ideal, as I can place the car in the middle or to the side. Standing in the driveway, there is a man-door to the right of the right of the roll-up, and in the back right hand corner the door into the house, a couple of concrete steps going up to it. Walls and ceiling drywall covered. Floor to ceiling is 112 at the back wall, about 115" at the door.

- Floor is about 22.5 ft x 23 ft. Original floor was cracking in a couple spots where settling under the pad and maybe a little water wash-out was going on. Figured it needed to be repaired, but measured in the cracks and looked like it was 2-3 inches thick anyway, so it all had to go. Kept the existing steps up into the house, paid $ 3300 to have a contractor take out old floor, compact and add some sand, and pour about 8 yards of 3500 psi fiber reinforced concrete. Concrete guy and I discussed re-bar, mesh etc, but for a home garage and the use it'll get , agreed that would be overkill. At 5-6 inches thick everywhere, level from the back wall about 4 feet towards the door, and then about 1/8" per ft pitch to the big door, well withing MaxJax spec.

- Sealed with water based sealer applied with a sprayer, 2 coats. Because it was already late October before it was poured, the cool nights and lack of heat in the garage limited choices a little. This is a workshop not a man-cave, so I just wanted something that will provide some protection from spills and sweep easy, without the extra cost and time to apply epoxy even if it could be done in the cold. Only issue with the sealer is my boots were a little damp when I applied the second coat, so I ended up sealing in some foot prints...like I said, shop not showplace so I can live with it.

- The door is only 12 years old, so no new door, but had garage door guy come and re-do the tracks to bring the door closer to the ceiling. I normally do my own stunts, but the parts for me to buy on line would be $ 350, and to have them do it including parts was only $550 . Had torsion spring replaced as that's a job that's cheap to have the guy that knows what he's doing just do it while he was doing the tracks. No opener, as the door is light enough and I'm not in and out daily

- Decided to place the lift to the right hand side, leaving more working space on the left. While the car is in place or on the lift, there is 4 foot wide walkway between it and the RH wall, even with the lift column in place.

- I have 3 cars currently to be lifted - '65 Mustang, '2000 Miata track car, and Dad's '51 Shoebox. I can do wife's driver as well if needed; my truck doesn't fit in the garage well anyway and I pay people to work on it ( it's an appliance to tow the race car and haul **** ) so not worried about working on it. Placing the posts 121" apart (outside of baseplates) works although I'm at the end of the arms to lift the Mustang on what passes for a frame on it. I wanted to be able to open the doors to the first detent in the hinge without hitting the column. The Ford frame is wider so it will be fine. The Miata is a little narrower but you lift it by the rockers so actually fits well.

- Drilling the holes was pretty simple. I placed the columns and used a 3/4" bit to "mark" the holes, drilling about an inch down. I tried a smaller bit but it walked too much- the 7/8" bit edges caught the edge of the split in the hole of the plates - why do they do that anyway? Probably they have a plasma cutter just follow a pattern and they don't shut it off ...

- Once the holes are marked, move the columns and drill with 7/8" bit. A 24" long bit is good for this, as it lets you stand at a good position over it. Also, I had a buddy help by spotting and adjusting my position if needed while drilling to make sure it went in straight - the longer bit makes it much easier to see if you're leaning over. He's also holding a vacuum at the hole to keep the view clear. Painted a mark at 5" from the end of the bit as a depth gauge - drill until you hit the paint.

- I used the Wej-it anchors that came with the lift, as the epoxy ones were just discontinued by Danner when I ordered the lift. Figured I could always go get them or something like it from Grainger if needed, but might as well give the wej-its a try first. 10 holes, 10 anchors, followed the directions that came with and no problem at all. Replaced the "sacrificial" bolt after the first 5 anchors. Put some oil on the nut and bolt also. Some of the anchors were a little more than 1/8" below the floor even when we cranked the bolt as tight as we could...

- Put the columns in place and torqued to 95 ft-lbs as directed. 3-4 four of the anchors took some additional turns on the torque wrench (probably the ones a little below the 1/8" mark) but the torque wrench is longer than the wrenches we were using so they just needed a bit more leverage I guess.

- Assembled the hydraulics as directed, but first removed the factory applied tape and re-applied couple fresh turns of better tape then paste teflon on that. No leaks. Used the quick connects that came with the lift.

- Directions say 7 quarts, then 1-1/2 quarts additional.. Thanks so 2 gallons is a little short... I used AW32 bought at O'Reilly's. No smell, no squealing noise as some have reported. I only have the 2 gallons in there now, and I think it wants another quart as at the top of the travel not sure if it's stopping because the piston is end of travel or the pump is staring to cavitate. So I'll grab another gallon and add a bit to make sure.

- Bleeding air took a couple up and down cycles, but really no big deal. Both sides go up and down evenly and smoothly.

- To lube inside the channels, directions say spray white lithium. If you have a flux brush and a tub of goo, bend the brush so you can "paint" the inside of the channel with the goo - it's tough to spray in there

So it's installed, and I'm very happy with it. I've got things to do on all 3 cars this winter, so hopefully the weather cooperates so I can move cars in and out as needed. I'll probably leave the RH column in place and remove/replace the LH as needed when I need more floor space. In the Spring I'll mount the pump on the wall or the RH column and run hose overhead.

If you're on the fence, do it!
 

tath

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France (77)
hello all,

Is it availble to dig a pit between the two post of the maxjax ? Or it isn't recommanded because it could fragilized the concrete floor ?

I think to buy a Maxjax i make a small pit (1 yard high) to have a suffisant height to work.

thanks
 

tath

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That's work for high ground clearance but mine are very low. how do guys do in this case ?
I dont find your threads too.:dunno:
 
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Great news! The install company contacted Dannmar and they are sending out a new cylinder! This is super awesome, and the installers made a point to say how great their support/service was so that is great to know.

I am pumped I won't have to wait too long now to send it back and then get another one. :D

Ben
We're glad to hear you received the help you needed. Always feel free to call Tech Support if you have questions or issues. We're here to help!
 

Mr onetwo

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That's work for high ground clearance but mine are very low. how do guys do in this case ?
I dont find your threads too.:dunno:
If the vehicle is very low, just lift it part way and put stands under it.Then lower the arms and put in the pins.I know it's a hassle, but then you have a more comfortable height. I have to do this when I lift up Fozzies.:D
 

tath

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If the vehicle is very low, just lift it part way and put stands under it.Then lower the arms and put in the pins.I know it's a hassle, but then you have a more comfortable height. I have to do this when I lift up Fozzies.:D

I see. but it's a pity to put 3k$ in this lift and must make this two time operation. I think I will lazy and I'll prefer work with the standard low height.
 

Jagmullins

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Feb 19, 2017
Messages
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Here is my newest modification to my maxjax
Redid all the hoses and mounted the pump to the right post





Helped having this tool to make the hoses perfect sizes


And works great lifting the harley
 
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monty007

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Mar 4, 2016
Messages
80
Awesome work Jagmullins!! I did something very similar to what you did. Best thing I did to get the hoses off the floor. Can you send some pics of how you mounted to the post? From the pic it looks like you simply drilled through the back side of the post and put screws through.

Enjoy your hoist!!
 

Acuratechva

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Mar 4, 2013
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Virginia Beach VA
Anyone know where to get 3" extensions on the cheaper side?

Or better yet anyone not using them and wan tto sell? Wooden blocks are starting to get on my nerves

EDIT: i have one unused fluid hose and quick D fittings if anyone is looking! Pm me
 
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moneypit_k5

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Near portland or
Re: MaxJax Installs: Post Here

Here is a picture of the hydraulic fitting. Because this is a flat faced full flow connector, it would be just about impossible to introduce air into the system with this design. I don't see air entrapment as being much of a problem for the future. The only place that I can see any air getting into the system is if you were to have cavitation in the pump itself, causing an aeration of the fluid. If that were the case, then you would have a defective pump.

My skidsteer implements use those same connections. I second your posit.

Also Id like to add about introducing air. being that the pump is cycling fluid, running the pump up and down once would remove air from the lines and deposit it back to the res.
 

moneypit_k5

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Near portland or
Re: MaxJax Installs: Post Here

Here is a picture of the hydraulic fitting. Because this is a flat faced full flow connector, it would be just about impossible to introduce air into the system with this design. I don't see air entrapment as being much of a problem for the future. The only place that I can see any air getting into the system is if you were to have cavitation in the pump itself, causing an aeration of the fluid. If that were the case, then you would have a defective pump.

My skidsteer implements use those same connections. I second your posit.

Also Id like to add about introducing air. being that the pump is cycling fluid, running the pump up and down once would remove air from the lines and deposit it back to the res.


Edit, I must be tired. I just quoted a post from 2009! sorry guys,
 
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