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#17750 - 02/20/17 05:54 AM Re: Still Getting Ready for Paint [Re: Zack]
JimC Offline
MBN Enthusiast
Registered: 04/17/11
Posts: 603
Loc: Virginia U.S.A.
The flickr thing works if you have a flickr account. GLyford told me how to do it.
_________________________
Life is what you make of it. So, why not make a working machine to make it easier.
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#17835 - 04/27/17 06:40 PM Ready for Paint [Re: JimC]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
I dropped it off for blasting and powdercoat yesterday! Should get it back in about a week and can finally begin assembling it. Hopefully the picture posting will get fixed and I can upload some pictures as it all goes together.
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#17838 - 04/27/17 10:22 PM Re: Ready for Paint [Re: Zack]
tom Offline
MBN Old hand
Registered: 02/14/10
Posts: 1672
Loc: kodiak alaska *****
me too
_________________________
Rocket science is common sense
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#17849 - 05/03/17 07:54 PM Re: Ready for Paint [Re: tom]
sonny Offline
MBN member
Registered: 02/17/10
Posts: 173
Loc: Illinois USA
Looks excellent!! thanks; sonny
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#17881 - 05/23/17 06:14 PM Re: Ready for Paint [Re: sonny]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
Thanks Sonny. I got it back from the paint shop...painted it a metallic dark gray with bright yellow undercarriage and boom...it's actually powder coated but looks fantastic. I've been taking pictures as I put it together and one of these days I'll post them here if it gets fixed or take the time to open up an account with a photo site and link them. I'm working through hose routing now and thinking about using some hard tubing since everything is so compact and hoses will be tough to bend into place. More soon


Edited by Zack (05/23/17 06:16 PM)
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#17892 - 05/30/17 09:56 AM Re: Ready for Paint [Re: Zack]
Mandres Offline
New in town
Registered: 04/15/16
Posts: 6
Loc: Anahuac, TX
Great to see your project coming together! I can't wait to check out the final pics and vids. You should have a lot of auxiliary gpm's available, planning to make different attachments too?
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#17923 - 07/01/17 06:02 PM Re: Ready for Paint [Re: Mandres]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
So the machine is mostly together...I have to finish fighting the tracks onto the undercarriage and fill it with oil. I routed all the 120' of hydraulic hoses and hope none of the 75ish fittings leak, but I have started up the engine and it works still so that's a good sign. Still need to install the clutch and drive belt, but I want to fill the hydraulic tanks and at least partially prime the system before I put myself in a position where I could inadvertently start the motor and run the pump with no oil in it. I ended up not liking my foot pedals for the track drive, so I'm converting it to two levers between the legs instead. I'm hoping to build most of that tomorrow and then get the tracks mounted, fill it with oil and see if it works. Any suggestions on how to select the appropriate hydraulic oil? I'm thinking about using ISO 22 or 36 but not sure how important brand is and if those are the appropriate viscosity. I'm not expecting to use it much below freezing and I think both those are good to about 0deg F if I remember the chart I was looking at. It's really getting close now...
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#17925 - 07/03/17 06:06 PM Re: Ready for Paint [Re: Zack]
Lincoln Offline
MBN Enthusiast
Registered: 03/25/11
Posts: 631
Loc: Parry Sound Ontario Canada *****
Sounding real good Zack!
I'm no expert in oil by any means so I hope someone else chimes in on the subject. I know of some folks that use 10w motor oil for hydraulic systems and figure it's better than hydraulic oil.
_________________________
If you can't weld well.....weld lots...
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#17930 - 07/05/17 01:55 PM Re: Ready for Paint [Re: Lincoln]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
Despite its Chinese origins I ordered few buckets of Sinopec iso 32 with RO and AW additives at $29/5gal from WalMart. I figure if i learn its crappy it'll have been a good way to initially flush out the system and at its price about as cheap as it gets.
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#17934 - 07/25/17 04:37 PM Re: Ready for Paint [Re: Zack]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
I've been testing for leaks by pulling vacuum on the system and was able to get a good strong (26"+) vacuum on all the parts of the system but ran into an interesting concern. When I draw a vacuum on either of the suction lines I get a small amount of air leaking across to the opposite suction line...like the two pump inlets are ever so slightly bridged together. I'm concerned this can cause some fluid to be drawn out of one tank and bridge across the inlet to the opposite side of the system and therefore end up in the opposite (wrong) tank. Any thoughts? Since its a double pump, maybe the internal shaft seals between the two pump bodies are not designed to fully isolate the pump inlets from each other, but that seems like a poor design. I unfortunately can't seem to positively identify the pump model number (bought it on ebay) and Parker has not been especially helpful when I reached out to them. I guess since both pumps will rotate at the same speed and the inlets are under suction there might not be any real pressure differential to drive the fluid from one pump inlet to the other, so maybe I shouldn't worry and just finally fill this thing up and try to run the machine.
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#17935 - 07/25/17 06:05 PM Re: Ready for Paint [Re: Zack]
GLyford Offline
MBN member
Registered: 02/09/10
Posts: 386
Loc: central MA
I don't think I have ever actually heard of a setup where this style of pump was used with isolated systems, all the setups I have seen (not many) draw from a common reservoir. Are the tanks at the same level, could you tie them together so that they can help each other with keeping level, and with cooling (such as when one side is working harder than the other)?
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#17936 - 07/25/17 07:01 PM Re: Ready for Paint [Re: GLyford]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
They are equal size and height...really mirrors of each other so I could put a pipe or hose connecting them so they're always keeping roughly the same fluid level. I tried reaching out to Parker again so I'll see if they respond this time. Thanks for the thoughts.
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#17937 - 07/26/17 02:07 PM Re: Ready for Paint [Re: Zack]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
Parker wrote back and told me my eBay pump is obsolete and that there is no shaft seal between the pumps so it will allow oil to pass from one to the other. I'll probably either build manual oil transfers from one tank to the other into periodic maintenance plans or add a balance pipe between them if I feel less lazy and can find a good way to do it without drilling more holes.
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#17938 - 07/27/17 03:38 AM Re: Ready for Paint [Re: Zack]
Lincoln Offline
MBN Enthusiast
Registered: 03/25/11
Posts: 631
Loc: Parry Sound Ontario Canada *****
I would just try it out and keep a close eye on the levels, there's always the chance that the levels don't really transfer. smile
_________________________
If you can't weld well.....weld lots...
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#17939 - 07/29/17 07:00 AM Re: Ready for Paint [Re: Lincoln]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
I added a balance tube with a ball valve on either side by drilling and tapping the sides of the suction line elbows at the tank outlet. I think this way, if there is any differential in the suction head from one tank to the other it will draw a little oil from the opposite tank. I put the valves in for two reasons. One, I can isolate the tanks and not use the balancing tube, and two, now I have a drain valve for the tanks if I ever change the hydraulic oil. Now I can just swap the balance tube for a drain tube and run it out the back door to drain each tank. I think this makes me officially ready to fill up the machine smile
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#17940 - 07/30/17 07:39 AM Re: Ready for Paint [Re: Zack]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
Well...this morning I decided to do a full system vacuum test and since I know the pump links the two tanks I added a rubber glove as the seal on the second tank by stretching it over the breather filler cap base and tucking the fingers into the filler strainer basket. While I should've known better I went ahead and started pumping down like this with the vacuum pump booked up to the other breather cap base. I pulled down to a full 28" of vacuum and all of sudden POP! The glove and plastic breather cap failed and exploded inside the tank....oops. So now somewhere in the tank rests half a plastic strainer basket and half a glove. I'll probably need to pull the return line filter since it sits in a 6" hole so I can get my arm into the tank to proceed with foreign body extraction. At least I learned the system is sealed up super tight though. Of course I made extra work for myself in the process. I now have full confidence in the system seals and trust it should only leak normal hydraulic system leaks via cylinders and weep holes. I think this vacuum trick will help purge all the air once I fill it up too. Hopefully my next post will be bragging about finally turning the little monster on...


Edited by Zack (07/30/17 08:07 AM)
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#17941 - 07/30/17 09:08 AM Re: Ready for Paint [Re: Zack]
Lincoln Offline
MBN Enthusiast
Registered: 03/25/11
Posts: 631
Loc: Parry Sound Ontario Canada *****
grin Kinda funny, but I'm sure a little frustrating for you.
_________________________
If you can't weld well.....weld lots...
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#17949 - 08/03/17 03:02 PM Re: Ready for Paint [Re: Lincoln]
Mandres Offline
New in town
Registered: 04/15/16
Posts: 6
Loc: Anahuac, TX
oh man, I hope the glove didn't shred into a thousand pieces. Were you able to get it all cleaned out?
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#17951 - 08/06/17 02:00 PM Re: Ready for Paint [Re: Mandres]
Zack Offline
MBN member
Registered: 09/20/10
Posts: 61
Loc: VA
I went away for the whole week, but today managed to fish all the pieces out (I think) and filled the machine up with about 18 gallons of oil. After finally getting the engine started I ran the hydraulics for the first time. The boom and tilt plate worked awesome and the tracks were trying but couldn't build enough pressure to move. It lurched a little, but wouldn't go. When I would try to run the track valves it would start to smoke from the clutch I believe. I'm not terribly surprised since it is a centrifugal clutch rated for 13 hp and I running it with 18 and a 2:1 reduction on the belt drive. At 28 minutes on the hour meter I heard an awful noise coming from the drive system somewhere and it continued after disengaging the pump...i think that was the end of my clutch. I'm probably going to swap it out for a plain pulley and try that. I think I wasn't building pressure because either the clutch or the belt was slipping. Plus, without the clutch I can run the motor slower. I was pretty sure I bought a clutch that engaged at 2500rpm, but this one was definitely only engaging at 3600rpm. More updates to come over the next few days. At least it sort of came to life though.
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#17952 - 08/07/17 03:42 AM Re: Ready for Paint [Re: Zack]
Lincoln Offline
MBN Enthusiast
Registered: 03/25/11
Posts: 631
Loc: Parry Sound Ontario Canada *****
It's tough I'm sure when you're so close to completion and it doesn't quite work. You seem to handle it in stride though, great to hear it's coming to life!
_________________________
If you can't weld well.....weld lots...
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