Air Tools & Compressors Logo

Related Topics:

Bryan Coupland
Bryan Coupland Posted on Aug 12, 2018
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

My Bostitch GF28WW piston assembly won't return, firing pin blocks another nail from being loaded. Help! I've changed piston assembly already and also piston bumper with no success.

Answer This Question

1 Answer

Pieter Vleeshouwers

Pieter Vleeshouwers

Level 3:

An expert who has achieved level 3 by getting 1000 points
Superstar:

An expert that got 20 achievements.
All-Star:

An expert that got 10 achievements.
MVP:

An expert that got 5 achievements.

  • Air Tools & ... Master 2,029 Answers
  • Posted on Oct 05, 2018
Pieter Vleeshouwers
Air Tools & ... Master
Level 3:

An expert who has achieved level 3 by getting 1000 points
Superstar:

An expert that got 20 achievements.
All-Star:

An expert that got 10 achievements.
MVP:

An expert that got 5 achievements.

Joined: Jun 07, 2008
Answers
2029
Questions
0
Helped
4113737
Points
7389

There is something leaking between the valve inside the cap and the cilinder

2 Related Answers

Anonymous

  • 2176 Answers
  • Posted on Jun 12, 2011

SOURCE: Bostitch RN46-1 roof nailer won't

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.

Ad
H2_Brad

Brad

  • 425 Answers
  • Posted on May 18, 2012

SOURCE: My Bostitch N12 won't advance nails

It could be the o-rings for the feed piston but a bad feed spring will also cause problems. that would be the easiest place to try if you can find a spring. Many of the parts for these are becoming NLA (no longer available) from Bostitch. One problem they had in the feed piston area was chipping the nose where the orign seals the piston stem. There is a small bumper on the inside of the feed piston cap that goes bad and allows the piston to travel to far back which slams the feeder against the lower housing and can chip it where the piston goes through.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

I have a Bostitch SEQ4 Coil Nailer. Every time I connect the air to the gun it ejects a nail and then wont fire because the piston has not returned. What is the answer?
SEQ4 is not a Bostitch gun model number it is a part number for a trigger.
It sounds like you have a bad trigger assembly - if you can post the model number I can get you the proper breakdown and part #.
Read full answer
Jan 31, 2017 • Air Tools & Compressors
2helpful
2answers

Bostitch N80SB won't reset after firing
Most likely just needs piston oring. Remove nails from the gun and point nose of gun up then down again. If the piston travels up and down in the cylinder, replace the oring. The piston returns to top with air pressure and needs good snug piston oring and good lower bumper (if bumper is cracked or missing pieces ~ replace ). Be sure to lube the orings in the headvalve with silicone paste or white grease. Part # ORK11 oring kit will reseal the gun. Good luck with your repair.
Read full answer
Jun 02, 2012 • Stanley Air Tools & Compressors
0helpful
2answers

My Bostitch N12 won't advance nails
It could be the o-rings for the feed piston but a bad feed spring will also cause problems. that would be the easiest place to try if you can find a spring. Many of the parts for these are becoming NLA (no longer available) from Bostitch. One problem they had in the feed piston area was chipping the nose where the orign seals the piston stem. There is a small bumper on the inside of the feed piston cap that goes bad and allows the piston to travel to far back which slams the feeder against the lower housing and can chip it where the piston goes through.
Read full answer
May 16, 2012 • Stanley Air Tools & Compressors
1helpful
1answer

My bostitch N88RH is not firing nails
May occur when headvalve or driver is stuck (will usually make a pop or click when tigger is depressed), or tigger valve has failed or safety not actually touching trigger firing pin. Easy test, remove nails, remove trigger by pushing out 3mm roll pin or bolt to expose the firing pin. Pull back nail feeder and place the nose against piece of wood ~ depress trigger with very quick motion with finger. If it fires, reinstall trigger and adjust safety foot so that the firing pin is pushed all the way in. If does not fire, replace trigger valve (usually tva6) or remove trigger valve and replace the 3 orings on the inner plunger. If you hear a pop or click when you do test above, remove head and lube the headvalve orings with white grease or silicone paste.
Read full answer
Nov 17, 2011 • Stanley Bostitch N88rh Framing Nailer...
0helpful
1answer

The Stanley Bostitch stapler will soot a hole inwood but no staple comes out.
Low pressure or worn piston orings will cause missfire due to the piston/driver not returning to top of cylinder and not allowing pins to move into position. Easy test. Remove airline and push driver blade all the way to top with thin metal or plastic. Test fire. If ok and pressure to gun aprox 100psi, install rebuild/oring kit. If driver was already at top position and the next pin is not aligned with path of driver, check rails and pusher for debris or obstruction preventing pins from moving into position.
Read full answer
Jul 10, 2011 • Stanley Bostitch MIIIFN Flooring Nailers
2helpful
1answer

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.
Read full answer
Jun 12, 2011 • Tools & Hardware - Others
0helpful
1answer

My Bostitch nail gun just start the end of the gun don't return the start place please help .
remove the piston cover screws and slide the piston out by pushing back the firing pin clean and oil all seals and o rings this area tends to collect dirt and sand and should be cleaned periodicaly
Read full answer
Jan 09, 2011 • Stanley Bostitch Nail Gun
0helpful
1answer

My N88rh shoots two nails at a time
N88rh uses a full round head plastic collated nails which are spaced apart enough that the driver cannot hit two nails at once. If your are using other nails that fit into your magazine that are closer together you may in fact drive two nails at once. If, however you are using the correct nail and the nailer shoots twice, then you probable have a very sensitive firing valve. You could change the TVA6 valve or change the actual trigger. To overcome this problem of double firing and you do not want to try changing the firing valve, you need to change the trigger to sequential type instead of bump fire type. This trigger is usually white and will only permit one nail to be fired. Check www.toolpartsdirect.com or bostitch.com for parts. Good holiday
Read full answer
Nov 28, 2010 • Stanley Bostitch N88rh Framing Nailer...
4helpful
2answers

My brad nailer will not shoot any nails. When I press the trigger, I can hear a small puff of air.
it sounds like the piston/driver might be stuck or the firing valve is malfunctioning. there are 4 screws to remove the top cap and you can see if the driver is damaged. Also before removing check to make sure there is not a nail jammed in the nose assembly. This tool is good for breaking the pin on the piston.
Read full answer
Oct 16, 2009 • Stanley Bostitch 18 Gauge Brad Nailer 1 -...
3helpful
1answer

Firing Pin doesn't return
The piston is returned to its firing position by air from the trigger valve after the piston has fired. It relys on the piston sealing against the bumper at the bottom of its stroke, if the bumper was damaged when the driver shattered or it was put in upside down the piston will not return. Also the piston uses air fed into the return chamber from the little holes in the cylinder, if the seal over these holes is damaged the piston may not return. Basically change the bumper and the check seal on the cylinder.
Read full answer
Jul 28, 2009 • Stanley Bostitch Coil Framing Nailer
Not finding what you are looking for?

View Most Popular

Air Tools & Compressors

Related Question

I have a Bostitch SEQ4 Coil Nailer. Every time I connect the air to the gun it ejects a nail and then wont fire because the piston has not returned. What is the answer?

  • Air Tools & Compressors

619 views

Ask a Question

Usually answered in minutes!

Popular Questions

Paslode nail gun will not fire

RTO PasLode 900420 Impulse Framing...

Instruction sheet or manual for Bostitch RN46-1 nailing gun

Stanley Factory Reconditioned...

Dewalt dc618 nailer is not firing

Dewalt DC616kn 18 - volt 16 - gauge...

Bostitch 6 gal compressor regulator knob is broken

Stanley NEW Bostitch 2 HP 6 Gallon...

Porter cable finish nailer won't work. Not jammed

Air Tools & Compressors

Top Air Tools & Compressors Experts

Brad Brown

Level 3 Expert

19187 Answers

ADMIN Andrew
ADMIN Andrew

Level 3 Expert

66957 Answers

Steve Pack
Steve Pack

Level 3 Expert

7128 Answers

Are you an Air Tool and Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

PDF Manual
Gmc-syclone-air-compressor-manual1.pdf...

GMC Power Equipment...

PDF Manual
EC119SA.pdf. user-manual-EC119SA...

Hitachi EC119SA...

JPG Manual
Electrical-wiring-diagrams-for-air-con...

Carrier 42QG24-C /...

Loading...