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How do I take apart the 11247 for oring repair

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Bosch 11247 wont hammer

hola le hace falta aceite a los engranes por eso no golpea puedes usar aceite para transmision

Jan 27, 2012 | Bosch 11247 1916" Spline Combination...

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I have a d51822 framing nailer that will shoot a nail but then not recoil to shoot the next nail, if you wait 10-20 seconds the gun will release air at the top of the gun and recoil

Most likely there is a problem with swollen orings between the cylinder and cylinder spacer (white plastic piece between cylinder and body ). Order the oring kit because nost likely when you take the gun apart the orings will fall apart. Dewalt used vinyl orings instead of viton on critical areas of the cylinder and these vinyl orings failed.

Sep 21, 2011 | Dewalt Clipped Head Framing Nailer

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Air rushes out of trigger area as soon as air hose is connected.

Remove the trigger to expose the trigger valve then un-screw the valve. If you have access to orings, pull apart the valve and replace orings (5 orings in the valve and one external oring ((external oring usually ok)). If you would like to replace the valve complete, the part number is ( PB205ba1) and is available at Good luck with the repair.

Sep 18, 2011 | Stanley Bostitch SB1664FN 16 Gauge...

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Dewalt D51822 nail gun does not fire nail. When trigger is pulled air can be felt coming from the trigger area. I have replaced the trigger valve assembly and it had no effect. Gun is about 3 years old...

There are 4 orings that cause this problem. Two are in the trigger valve installed on the firing pin. The firing pin can be seen just under the trigger, however if you replaced the valve, you could assume no problems with the trigger valve. I would take apart the old trigger valve and examine the orings on the pin. The pin should fit snugly in the trigger valve cap and also in the valve. If the orings look good and it does fit snugly, most likely valve is still good. The other two orings to suspect are installed on the cylinder inside the nailer and make contact with the bulkhead (white plastic piece that seals the cylinder note parts reference 55, 74, 11 on the parts list). For parts list and to order parts go to Good luck with your repair.

May 26, 2011 | Dewalt D51822 Clipped Head 2Inch to...

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Air coming from top of nail gun, won't drive nails. How do you go about repairing the fr350a?

Nail guns are not hard to rebuild . Its a bunch of Orings that seal the thing and it sounds like you have blown one . Take it apart replace all of the Orings in it . You can buy these things at a good hardware store bring the old ones with you and match them up . And when you install the new ones make sure you lube them i like gel gliude a disc brake lubericant it is good with heat and water . A nd try putting a water trap on your compresser inline also put light oil like WD 40 in the bottom fitting before you use it everytime if they sit the Orings tend to dry out and when they move this will ripe them and cause leaking

May 09, 2011 | Garden

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Hello, there is air coming from the trigger area, I suspect there is some kind of o-ring or some kind of seal broken where the trigger goes into the piston area, I just want to know how to take that apart...

Trigger valve is part number A08368 or (old part #897458). Easy repair. Remove air supply hose, and nails. Remove pin holding trigger to expose trigger valve. Spray soapy water on valve to determin if air is leaking from outer part of valve (orings that contact the body) or around the pin. Remove roll pin/s holding trigger valve in body of gun (use 3mm pin driver, some guns have one pin others 2). With pins removed, apply air pressure to gun and valve will pop out (use heavy glove or rag in hand to catch valve because some valves come out with force). With trigger valve in hand notice the two groves on sides of valve that roll pins contact (when you re-insert valve align valve so groves align with roll pin in body). Remove the two pins holding inner workings of trigger valve. There are two orings on the trigger pin, three orings on the inner valve and two orings on the outer part of body of valve. Usually, the orings that cause leak are the two smallest on trigger pin and three on the inner valve (unless soapy water test indicates outer orings). Orings are available at dewalt service center by part number or if you like to tinker, Lowes has many usefull orings in the plumbing department or replace the whole valve for about $25. Use plenty of silicone paste lube on the orings (sold at lowes). Valve should press in without a great deal of force and be sure to align valve to roll pin in the body. Use 3mm punch to temp. hold valve in gun for test. Good luck

Mar 28, 2011 | Porter Cable Cable No. FR350A Rnd Head...

1 Answer

When i squeeze the trigger the gun goes off but no nail comes out? i have already bought the repair kit and have been working on this gun all day

Here are a few tests for you to try. You will need a piece of rubber or coiled up old hose.
First open side door and remove nails. Tilt gun head down then up again to check if piston is loose in the cylinder. The piston should stay in top position. If piston drops to bottom of cylinder replace piston oring or apply some coils of teflon tape under oring to expand oring slightly untill piston stays at top but still can be pushed down cylinder. If piston stays at top connect air to gun and with side door open contact gun to rubber firing gun noticing the feeder movement. With very rapid firing of the gun, the feeder should move back and fourth just as fast as the driver moves. If the feeder seems to move slower than the driver moves then check/replace spring in feeder. If spring seems strong enough in your opinion then problem is restriction in the air supply to feeder. You will need to remove the two 6m allen screws at front of gun and split gun apart to check restriction at the oring sealing these two parts. Sometimes debris traped at oring (white oring) will restrict air to feeder. Good luck.

Jan 08, 2011 | Stanley Factory Reconditioned Bostitch...

1 Answer

I had a air leak in my Bostitch framing gun. I replaced the trigger valve and it still leaks air around the trigger. Any suggestions?

Remove the trigger and remove the nails, connect air. Try to determine if air is leaking from the outer edges of the valve or from the center when you move the pin. If from outer edge, remove roll pins that hold valve in the body of the gun. Apply air pressure to pop out the valve(use glove the catch the valve, it could come out with force). Examine the two outer orings of the valve for cuts and replace as needed. Clean the opening where the valve fits with 400 grit sandpaper to remove debris and check for worn areas. If clean, apply plenty of silicone paste lube on orings and opening and gently push valve back in. If it leaks from the center pin, you may have a defective valve. You could try to repair if you have access to orings. Remove valve, remove two retaining pins and take valve apart. Small orings on the center pin could be the problem. Good holidays

Dec 20, 2010 | Air Tools & Compressors

1 Answer

My BN200 nailer has a crimped Oring. After firing once it stratd blowing air out the back port. I toke it apart a reajusted the Oring. after firing once it started blowing air out he back port again. How...

The oring on the headvalve/piston should be replaced. You can use any oring that fits snugly on the groove. Factory oring is vinyl but use black rubber oring, works just fine. Most likely place to find orings is Lowes in the plumbing department. Select oring smaller than groove so that it will fit snug and should be about 1/8 in thickness. There is a smaller oring behind piston, just make sure it not cracked and check for upper seal in head to be in place. Finally check that surface there oring seals on head is not scratched. Remove fine scratches with #400 grit paper.

Aug 29, 2010 | Porter Cable Tools & Hardware - Others

1 Answer

Senco finishpro 15.....It worked intermitedly not it will not fire. I had taken it apart and reasembled it and it worked fine, the next day it wouldn't. It is not jambed. When I pull the trigger I hear a...

When you took it apart did you notice any worn or cut orings? second when reassembling did you lubricate the orings with a light grease? The puff of air might indicate the firing valve in the cap is sticking or possibly you pinched an oring upon reassembly (I have done it also) I would take it apart like before paying close attention to the condition of all the rubber parts. It would probably be to your benefit to purchase an oring kit and just completely redo the insides. They are not that expensive and then you know everything is fine. Also look at cylinder to ensure it is not cracked or out of round and condition of bumper and driver seal in the bottom of tool. Good luck

Dec 05, 2008 | Senco Finishpro 15 Finish Nailer & Sls15...

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