first AN fitting, help me |
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first AN fitting, help me |
machina |
Jul 25 2004, 09:15 AM
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#1
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
what a bitch these things are.
my first -6 fitting, didn't get the end cut 100% square, just a little off. Does this need surgical precision or is close enought OK? Next blunder, got 1/16" of "push out" as I threaded the nipple in. Can this really be done with 0 push out? Can I use this fitting splice as it is described above or should I keep practicing? Any tips? BTW, I am using a 3" cutoff wheel to cut the hose, the hacksaw blade technique was impossible, frayed like crazy. thanks, dr also, now I see why I need to get some Aluminum AN wrenches, scratched up my new fittings already. |
lapuwali |
Jul 25 2004, 10:24 AM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
Use the hacksaw, but to prevent fraying, wrap tape (I use electrical tape) around the hose and cut through the tape. The cut needs to be reasonably square, but you do have some latitude there.
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TimT |
Jul 25 2004, 10:36 AM
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#3
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
I wouldnt worry about 1/16 push out...try pushing the hose a teeny bit more into the fitting before you thread in the other piece. use lots of lube (motor oil etc), also hol one part in a vise and turn the other part
the best thing for cutting hose are these the 3in cutting wheel method leaves the hose full of rubber and bits of cutting wheel |
machina |
Jul 25 2004, 11:16 AM
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#4
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
QUOTE(TimT @ Jul 25 2004, 12:36 PM) the best thing for cutting hose are these the 3in cutting wheel method leaves the hose full of rubber and bits of cutting wheel that link is broken, really want to know what "these" are. dr |
TimT |
Jul 25 2004, 12:42 PM
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#5
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
I fixed the link... but if it doesnt work, go to www.mcmaster.com page 2155 or search for "cable shears" the shears aint cheap but they are the shizzle.. Ive seen similar shears for around $35 at a local marine supply house
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ArtechnikA |
Jul 25 2004, 12:52 PM
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#6
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
wrap the end of the hose tightly with racer's tape. use a SHARP 32-tpi hacksaw blade. a long time ago i bought a tube cutting vise, has a clamp to hold the tube and a set of saw guides to make the cut exactly square. it was expensive then but i have used it successfully for many years - definitely got my money's worth... if i can find it again i'll post a picture - it's not where i thought i stashed it...
you'll still need to clip a FEW frayed strands with very sharp shears. i used moly-based assembly lube when assembling fittings but use some kind of good lubricant. 1/16" isn' really cause for heartburn on a -6 fuel fitting. Summit has good deal on aluminum Bonney wrenches and has finally (YAY!) come out with an all-aluminum adjustable wrench. |
machina |
Jul 25 2004, 12:58 PM
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#7
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
thanks for the tips,
I am going to try a set of those cable shears, if those things work, this will be much easier and neater. dr |
TimT |
Jul 25 2004, 01:05 PM
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#8
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
QUOTE if those things work, they work, we use them on hose from -20 to -6 (IMG:style_emoticons/default/beerchug.gif) |
ArtechnikA |
Jul 25 2004, 01:15 PM
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#9
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(TimT @ Jul 25 2004, 10:42 AM) Ive seen similar shears for around $35 at a local marine supply house i bought a cheap pair at Harbor Freight on the hope that they might work, and knowing that i had plenty of use for them in other applications if they didn't. they were junk on AN-6 braided hose but they did cut plastic irrigation line just fine. this is a place where cheap tools are no bargain... |
TimT |
Jul 25 2004, 01:20 PM
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#10
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Rich actually the shears I saw at the marine supply place were a real quality tool, however they probably could cut a -8 hose max, limited use for us.. I got my shears from Graybar, mcmaster is a bit more convenient to me now than Graybar is..
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machina |
Jul 25 2004, 01:30 PM
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#11
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
I checked mcmaster and grainger, both have shears between $60 and $200 and ratcheting shears for even more.
Will $80 => $100 get me a set that will cut up to -10? dr |
TimT |
Jul 25 2004, 01:54 PM
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#12
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Shear "A" in mcmaster should do you fine 1 1/4" capacity
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ArtechnikA |
Jul 25 2004, 02:07 PM
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#13
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(TimT @ Jul 25 2004, 11:20 AM) Rich actually the shears I saw at the marine supply place were a real quality tool... yes - i'm sure they were. i was just trying to make the point that this is a demanding application and one can't scrimp on quality. if you can find a bargain on a quality tool that's cool, but a cheap tool is no bargain at any price. |
TimT |
Jul 25 2004, 02:10 PM
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#14
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
intersting tidbit, this guy recommends using two very fine hacksaw blades mounted opposite each other in the hacksaw to cut the hose?
btw he also has some good prices on fittings |
J P Stein |
Jul 25 2004, 05:46 PM
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#15
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I use a die grinder (pneumatic) & cut off wheel. Wrap the line with tape and have at it.....but don't forget to clean the shittage out of it. If you can, pack the line with cloth of paper towels right where you're gonna cut & cut thru the whole works. Needlenose pliers will pull the stuff out.....clean anyhow....no matter how you cut it. I've done lots of em and have a zillion pinpricks to proove it. (IMG:style_emoticons/default/biggrin.gif)
Then make up a test rig to pressure test em. I use 120 lbs of air and spray with a water/soap mix. Bubbles are bad. (IMG:style_emoticons/default/rolleyes.gif) |
machina |
Jul 25 2004, 06:02 PM
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#16
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
on AN wrenches, I have been using a regular 3/4" on my -6 fittings,
so why are the aluminum AN wrenches sized as 11/16" for -6? dr |
machina |
Jul 25 2004, 06:03 PM
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#17
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
QUOTE(J P Stein @ Jul 25 2004, 07:46 PM) Then make up a test rig to pressure test em. I use 120 lbs of air and spray with a water/soap mix. Bubbles are bad. (IMG:style_emoticons/default/rolleyes.gif) did you make a fitting to attach to your air compressor? How? dr |
J P Stein |
Jul 25 2004, 07:26 PM
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#18
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
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ArtechnikA |
Jul 25 2004, 07:31 PM
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#19
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(synthesisdv @ Jul 25 2004, 04:02 PM) so why are the aluminum AN wrenches sized as 11/16" for -6? they are? actually - i donno. i have a few different sizes of Bonney wrenches and i just use the ones that fit; mine aren't marked for size. but the B-nut and the nipple have different sizes, so i guess it depends on which you're measuring. i think the "right" sized wrench is for the B nut... |
J P Stein |
Jul 25 2004, 07:38 PM
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#20
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
OK, this is for an AN (oops, a double an)12 line.
IIRC, you can get a 1/4 pipe to AN6 fitting and skip the reducer. This one is 1/4 pipe to 1/2 pipe, AN12 to 1/2 pipe, and a AN 12 plug. Attached thumbnail(s) |
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