48" Press Brake Project - Page 7 - JeepForum.com

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post #91 of 203 Old 02-08-2012, 07:32 PM Thread Starter
BESRK
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Hmmm.. I think the valve had a closed center position.. if not, I'll swap it out. It also has a "detent" in the retract position so you can just hit the lever up and the die will raise all the way until it bottoms.. then it automatically snaps the lever back to the center position. I'll probably make an adjustable stop to trigger the detent low in the range of motion to help keep cycle times down.

Wouldn't surprise me if there's some stuff I'll have to revamp/replace. I'm not a hydraulic whiz so I'm kinda shooting from the hip on this..


'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


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post #92 of 203 Old 02-08-2012, 11:47 PM
dodger889
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Quote:
Originally Posted by Abaddon View Post
this is looking good

one thing i just noticed and must of over looked before is that your using a log splitter value
i dont know how your rams will be positioned but i used a log splitter value on a custom scissor lift i made for a customer and had to swap it out as it wouldnt stay in the up position (scissor extended up has ram retracted)

i ended up switching every thing out and and using a value with a closed center

the only reason i mention it is it doesnt do any good if your punch keeps wanting to rest in the die while your tring to set up a bend but like i said i dont know how you have it planned out and it might work fine but if you run into problems i can give you the company name and part numbers i use and a Reps. number if youd like theres prices were pretty good for the custom package i buy from them
More than likely he will be using power up and down. So the hydraulics will hold the head up will the proper valving with good hydraulic cylinders.

A 89 yj with a 4.0 aw4 sye out of an 92xj. Now the hard part is done time to get it up in the air just a bit. Working on 8.8 with 3.73 and lsd for the rear. and new D30 hp with 3.73 .
For those who have not figured this out I'm old school but can handle the new too.
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im just cheap, and cheap makes you creative.
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post #93 of 203 Old 02-09-2012, 06:34 AM Thread Starter
BESRK
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Yep.. power up/down.. with a brand new 5" cylinder. I should be able to start putting the pivots and hydraulic system together in the next week or so..

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


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post #94 of 203 Old 02-09-2012, 12:09 PM
82JeepCJ7
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Here is the one in our shop

Cincinnati 400 ton
Attached Thumbnails
photo.jpg  

Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #95 of 203 Old 02-09-2012, 12:43 PM
addicted2dunes
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Here is the one in our shop

Cincinnati 400 ton
Looks like that thing can only bend up to 16 gauge though...... we need something a little stronger.... ha ha j/k

Cameron Gunlock
1981 CJ8 - http://www.jeepforum.com/forum/f8/project-krawln8-81-cj8-1276742/
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post #96 of 203 Old 02-09-2012, 01:03 PM
firefighter315
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Quote:
Originally Posted by 82JeepCJ7 View Post
Here is the one in our shop

Cincinnati 400 ton
How WIDE is that thing? Holy crap!
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post #97 of 203 Old 02-09-2012, 02:27 PM
82JeepCJ7
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It has a 16' bed on it.

We have bent 2" on it before, about 10" wide.

We normally bend 1/2" to 3/4" 144" wide for our buckets on it.

I like the simple design of it. The only moving parts are the cylinders. The hydraulics are run though a T so they feed each side the same.

Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #98 of 203 Old 02-09-2012, 03:11 PM
addicted2dunes
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Those rams look to be about 2.5" in diameter! Monsters!

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1981 CJ8 - http://www.jeepforum.com/forum/f8/project-krawln8-81-cj8-1276742/
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post #99 of 203 Old 02-09-2012, 03:33 PM
monkers
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Beserk, we had a valve body like that on our wood splitter my dad built years ago with the "detent" in the return. He was anal retentive and cut all his logs 16" (had a marker to make a mark on them) so I machined an alum sleeve for him that bolted around the rod, he put it where he wanted it. When you split a piece, you just hit the lever, and it retracted, unitl that alum sleeve was contacted....worked great. You could use thumb screws in the sleeve so it was easily adjustable so you didnt have to retract the full length each time, just the amount needed for that particular bend

2010 Rescue Green 2 Door 6 Spd, 2.5" RK Max Travel, Fox 2.0 IFP Shocks, 37" Nitto Trail Grappler M/T, EVO Sleeves, Gussets, Mini Skids, Rock Stars, Poly Perf Long Travel Upper Shock Mounts, Poison Spyder Evap Skid, Diff Covers, Grab Handles, Cobra 75WXSt, Stern Cibie/Osram Light Upgrade, Mopar Heated Seats, Trimmed Flares & Bumpers
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post #100 of 203 Old 02-09-2012, 05:49 PM Thread Starter
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I'll probably just do a threaded rod (1" bolt about 6" long) that makes contact with the main punch plate somewhere to trigger the detent. A jam nut to hold it in place should make it easy to use.

My suction and return hoses for the hydro system came in today. If I get a chance, I'm going to hit Northern this weekend and try to pick up all the fittings/adapters that I need to start connecting stuff. I'm also going to cut the mounting plate for the Electric Motor/Hydro Pump and Reservoir this weekend.

So... if all the moons line up correctly, I should have the main frame finished and mounted to the legs permanently this weekend.

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


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post #101 of 203 Old 02-09-2012, 05:58 PM
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Have a first project in mind yet? I do.

80 CJ7_360_32RH_D300_44/9"(4.56)_custom bumpers/cage
4" lift,tube fenders,comp cut_37s on H1 rims
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post #102 of 203 Old 02-09-2012, 06:37 PM Thread Starter
BESRK
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Quote:
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Have a first project in mind yet? I do.
David, can you give me a call tomorrow?.. I broke my Droid last week and lost all my contacts. Just got a new phone the other day..

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


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post #103 of 203 Old 02-09-2012, 06:40 PM
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David, can you give me a call tomorrow?.. I broke my Droid last week and lost all my contacts. Just got a new phone the other day..
Will do. Also just texted you.

EDIT: P.S.- buy an iPhone!

80 CJ7_360_32RH_D300_44/9"(4.56)_custom bumpers/cage
4" lift,tube fenders,comp cut_37s on H1 rims
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post #104 of 203 Old 02-13-2012, 04:52 PM Thread Starter
BESRK
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Made a quick adapter for mating the hydraulic pump to the electric motor. Northern wanted $70 for theirs.. I was able to make this one from scrap..

Took about 10 minutes to measure everything, 10 minutes to draw it all up.. and 4 minutes to cut.

Motor side of adapter..


Pump side..


All bolts and set screws are easily accessible..


Tacked together and mocked up..

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


Lower 2

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Down Schoolbus

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post #105 of 203 Old 02-13-2012, 05:01 PM
addicted2dunes
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Awesome!

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1981 CJ8 - http://www.jeepforum.com/forum/f8/project-krawln8-81-cj8-1276742/
http://www.facebook.com/pages/Central-Coast-Krawlers/139075302856004
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