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Ism coil roofing nailer will not hold nails in striking chamber after they advance

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The feeder area of the nailer incorporates small levers on both sides of the nails. On the body side, the spring loaded feeder retracts and pulls forward the first nail. On the latch side small spring loaded arm/s hold the nails in place once they are pulled forward. Open the latch and push on both the feeder and the retanier for firm spring tension. On some nailers, due to wear, the grippers on the feeder tend to wear off allowing the nail to slip out of place. On other nailers, the feeder arm/shaft tends to wear and alows the feeder to move out of alignment (check if the actual feeder arm can move from side to side). The feeder shaft should move forward and back with no side to side movement. Finally, some coil nails are welded together with too stiff of wire. After the first nail is driven, the second nail will have one or two strands of wire pointing out not allowing the nails to move into position. After first shot, the two wires should be cut off or bent down out of the way. Good luck.

Posted on Nov 10, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 67 Answers

SOURCE: Max 890s coil nailer does not advance nails when operated.

Make sure you have at least 100 psi available and I would pretty much drown the sliders and other moving parts in something like Marvel Mystery Oil.

Posted on Feb 26, 2009

Idaho_Biker
  • 32 Answers

SOURCE: Rebuild kit for a ISM sold by Hilti coil nailer model RC234B

I did some extensive research for you and found:
This Link to ISM FASTENING SYSTEMS
http://www.ismsys.com/ToolInfoRequest.aspx
If you Look Under the Category: Coil Nailer Roll 15234 Open That PDF and It shows an Exploded View of Your Gun, and Available Parts. I think you should be able to find a Air Tool Shop in your Area That Specializes in Carpentry Air Tools and Probably Save a Bunch of $$$ on a Rebuild...However, Here is The Address & Ph. Number for ISM, and You could Call and get an Estimate of email them too.
WESTERN OFFICE
AIR NAIL
SOUTH GATE, CA
800.479.6455
Sounds to me Like all you need is a O-Ring Kit, and Perhaps a New Driver.
Good Luck, I hope all this Info works for You.

Posted on Mar 27, 2009

odiebugs
  • 949 Answers

SOURCE: have ism coil nail gun what nails do i use where

Somewhere there should be a model #, I have never seen a ISM.

Most all bostitch roofing coil nails will fit there guns.

Below I posted there website where you can check the info on your gun.


http://www.bostitch.com/default.asp?TYPE=CATEGORY&CATEGORY=BOS_ROOFING_NAILER_STAPLER

Posted on Apr 07, 2009

jmgldsmth
  • 1869 Answers

SOURCE: My Bostitch RN45B-1 Roofing Nailer won't advance

remove and, replace the nail advance gear then retime the nailer

Posted on Jul 17, 2010

  • 1383 Answers

SOURCE: My hitachi nv45ab2 roofing coil

Hitachi coil roofing nailer will skip nails if the piston oring is worn, the feed spring is weak or lower bumper is cracked. Easy to check. Remove nails and air supply. With side door open point nose of gun up then down again. If the piston moves up and down in the cylinder, replace the piston oring. If piston does not move and is in the up position, check the feed spring for tension. With air supply removed and door open, slide feeder back and press on feeder from door side to check tension. It should spring back to position against rails.If is feels loose, replace spring and retainer pin if the pin is worn. If piston oring is good, and the feeder has good spring tension, suspect lower bumper and the plastic part below the bumper called the "sheet". Remove head and pull the cylinder to examine lower bumper. Parts are available at www.toolpartsdirect.com. Good luck with your repair

Posted on Aug 09, 2011

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1 Answer

Nailer wont advance the nails then it shoots blank


Try ez test to check for proper operation. Remove nails and air supply, point nose of gun up then down again. The driver should not move from the top of cylinder position. If driver is moving up then down replace the driver oring. If driver oring seems ok then connect air supply and bump fire the nailer without nails against soft wood and door open so that you can see the driver and feeder moving. Bump fire the gun and make sure that the driver is moving all the way back up to top of cylinder and the feeder is moving rapidly back and forward. If movement seems ok then hold the nose down on soft wood and depress and hold the trigger. This will fire the gun but driver will stay at the bottom position and not return until you release the trigger or lift the gun. When holding the gun with the driver down position, no air should leak out the top or bottom of the gun. If air leaks out bottom, replace lower bumper, if air leaks out the top replace the upper bumper. Good luck

Mar 19, 2015 | Porter Cable Coil Roofing Nailer

1 Answer

Roof coil nails any diffrence


Internally they are the same, however the rnd has a semi clear cover to see the coil nails in the cannister (could be other differences but use same nail). There is a difference between brands of nails. Check with local code for required length and type (galvanized , stainless etc). Make sure that the wire that binds the nails together is not too strong and stiff. Some coils have soft copper that works quite nicely and others use a stiff steel wire that tends to pull at the coil and leaves a stiff piece of wire in front of the first nail preventing good alignment to driver. If you are going to depend on your nailer for daily work, order and have in stock upper bumper and cylinder seal. These parts will fail quite quickly. Other parts tend to hold up pretty well. Good luck

May 31, 2012 | Ridgid ZRR175RND FactoryReconditioned 134"...

1 Answer

My makita an451 roof nailer keeps shooting 2 nails I've tried 2 different brands of nails


Nailers that use strips of nails (one nail directly behind the other) will sometimes drive two nails at once and is caused by damage to the driver. The nails are so close together that the driver will hit the first and part of the second nail head. Coil nailers, as your an451, use nails seperated by welded wire making it very difficult the the driver to hit the second nail. Usually when a coil nailer shoots two nails, it is acutally the trigger valve that acutates twice (two very rapid fires). Two very rapid fires is caused by faulty trigger valve. I have seen a roofing coil nailer fire one nail and a second nail drops out of the gun. Caused by weak / malfunction of nail feeder or wire used to weld nails together is too thick.

Sep 17, 2011 | Makita Roofing Coil Nailer AN451

1 Answer

Bostitch RN46-1 roof nailer won't advance nails into the piston chamber. After loading the nail coil, the first nail fires fine, but the next won't advance. Please help. Thanks!


check the height of the magazine, but I think that you have a problem with the feed piston or there is a spring on the feed pawl that might be broke. Unload the nails and dry fire the tool with the door open observing the piston movement. It should "SNAP" back and forth if it does unplug the air and check to see if the spring that applies pressure to the pawl is broken or missing. I am going to guess the piston. If this tool has not been serviced in a while the asphalt tends to jam up the mechanisms. Let me know if you need more assistance.

Jun 12, 2011 | Tools & Hardware - Others

1 Answer

When firing nailer first nail shoots good but next nails head will get stuck between the push rod chamber. push doesnt seem to return fully top when nail is cycled.


Try oiling the tool first. Remove the nails, squirt a decent amount of air tool oil in the stem where the air hose coupler connects, and fire the tool a dozen times or so. Then put in the nails and test. If it still hangs up then it will need the o-rings replaced.

Jun 11, 2011 | Porter Cable Coil Roofing Nailer

1 Answer

It will shoot first nail but won't feed the next nail


could be a few problems, the feed piston might be sluggish, the spring might be missing off the feed pawl, the collation of the nails or a bad coil of nails, the driver might not be retracting fully. Now for the way to check some of these. First look at the coil of nails and the adjustment on the magazine, the nails should pull freely off the coil. Next remove all the nails and using a block of wood "dry FIRE" the tool with the feed door open to check the movement of the feed piston, it should snap back and forth and if it doesn't that would probably be your problem, could be dirty/worn orings or debris in the air chamber. UNPLUG air hose and check for the finger spring that holds the feed pawl tight and check the pawls for wear and asphalt not allowing it to catch the nails. Lastly fire the tool and check the piston, did it retract fully allowing the next nail to advance? if not you would need to probably replace the o rings in this tool. Let me know if you need more assistance. And if I have helped you would you please vote accordingly, thanks

Mar 16, 2011 | Hitachi NV45AB2 Roofing Coil Nailer

2 Answers

Can i use any brand coil nailes in my nv 45ab2 coil nailer


Yes. Roofing nailers all use about the same size and spacing on coil nails. You will find that Harbor Freight is about 1/2 the price of Home Depot or Lowes for those nails.
-Jim

Oct 17, 2009 | Hitachi NV45AB2 Roofing Coil Nailer

3 Answers

My bostitch rn46 seems to double or triple shoot nails frequently. Am I not using the tool properly or could there be a mechanical problem with the tool?


if u are right nails for gun,then make sure when u put coil in and feed in front of firing pin the nails are straight with pin and connecting wires are not bent causing nails to fall out of alingnment.

Oct 02, 2009 | Stanley Factory Reconditioned Bostitch...

1 Answer

Have ism coil nail gun what nails do i use where can i get info about the nailer


Somewhere there should be a model #, I have never seen a ISM.

Most all bostitch roofing coil nails will fit there guns.

Below I posted there website where you can check the info on your gun.


http://www.bostitch.com/default.asp?TYPE=CATEGORY&CATEGORY=BOS_ROOFING_NAILER_STAPLER

Apr 07, 2009 | Stanley Bostitch Coil Framing Nailer

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