Slow rivet gun

Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 10:59 pm

OK, I know somebody has seen this before... I bought MAM's tool kit with my
Moose, and the rivet gun I've got takes 4-5 seconds to let go of the mandrel
after every pull. I could go a lot quicker if I didn't have to sit there
with my hand out waiting for the mandrel to fall out! This is the plain
Jane blue rivet gun that Murphy sells... is there a way I can adjust this to
allow the air to bleed out more quickly?

Thanks, Mike

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Mike Davis · Post by **Mike Davis** » Fri Feb 17, 2012 10:59 pm

Thanks Wayne, I'll definately go through all this tomorrow... don't think
it was anything I have done though since it was like this when I pulled it
out of the box!

Thanks, Mike

----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <murphy-rebel@dcsol.com>
Sent: Monday, May 05, 2003 6:42 PM
Subject: Re: Slow rivet gun

Have you been a bad boy and slugged the back of the pulling head with a
hammer to help put in a stubborn 3/16 rivet?? I do it all the time!;o))

This burrs the hole that the mechanism comes out through when it pulls and
then it drags as it's going back in, or the mechanism tube that pops out
sometimes gets oversize as well and needs to be ground off slightly.

Another thing to check is if your base has turned slightly from the body

of

the gun. This hangs up the wire that goes from the trigger to the valve
mechanism and causes a slow release. If neither of those cure it then take
the check valve assembly apart that's below the air inlet fitting. Looks
like a nut, remove slowly and keep track of the order of spring/check

valve

etc and give a good cleaning.

Also if the big ring nut on the back is loose it changes the stroke and
won't let go of the mandrel as well either.

Still not working, remove the nose outer body and move the nose piece

holder

forward half a turn or so on the threaded area and then tighten back up

and

try again. Sometimes just a small adjustment here changes thing for better
or worse as well!

Good Luck,
Wayne G. O'Shea
oifa@irishfield.on.ca
www.irishfield.on.ca

----- Original Message -----
From: "Mike Davis" <mike.davis@dcsol.com>
To: <murphy-rebel@dcsol.com>
Sent: Monday, May 05, 2003 10:27 PM
Subject: Slow rivet gun

OK, I know somebody has seen this before... I bought MAM's tool kit with
my
Moose, and the rivet gun I've got takes 4-5 seconds to let go of the
mandrel
after every pull. I could go a lot quicker if I didn't have to sit

there

with my hand out waiting for the mandrel to fall out! This is the plain
Jane blue rivet gun that Murphy sells... is there a way I can adjust

this

to
allow the air to bleed out more quickly?

Thanks, Mike

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mike.davis · Post by **mike.davis** » Fri Feb 17, 2012 10:59 pm

That sounds like the easiest approach yet... I always like trying easy first!

Thanks, Mike

On 5/5/2003 8:12 PM, MURPHY-REBEL@DCSOL.COM wrote to MIKE DAVIS:

-> Try a SMALL squirt of light oil into the air fitting, hook it up and
-> strengthen you hand for awhile pulling and releasing the trigger. Maybe it
-> just needs to be broken in before you bother to tear her all apart!
->
-> ----- Original Message -----
-> From: "Mike Davis" <mike.davis@dcsol.com>
-> To: <murphy-rebel@dcsol.com>
-> Sent: Monday, May 05, 2003 11:03 PM
-> Subject: Re: Slow rivet gun
->
->
-> > Thanks Wayne, I'll definately go through all this tomorrow... don't think
-> > it was anything I have done though since it was like this when I pulled it
-> > out of the box!
-> >
-> > Thanks, Mike
-> >
-> > ----- Original Message -----
-> > From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
-> > To: <murphy-rebel@dcsol.com>
-> > Sent: Monday, May 05, 2003 6:42 PM
-> > Subject: Re: Slow rivet gun
-> >
-> >
-> > > Have you been a bad boy and slugged the back of the pulling head with a
-> > > hammer to help put in a stubborn 3/16 rivet?? I do it all the time!;o))
-> > >
-> > > This burrs the hole that the mechanism comes out through when it pulls
-> and
-> > > then it drags as it's going back in, or the mechanism tube that pops out
-> > > sometimes gets oversize as well and needs to be ground off slightly.
-> > >
-> > > Another thing to check is if your base has turned slightly from the body
-> > of
-> > > the gun. This hangs up the wire that goes from the trigger to the valve
-> > > mechanism and causes a slow release. If neither of those cure it then
-> take
-> > > the check valve assembly apart that's below the air inlet fitting. Looks
-> > > like a nut, remove slowly and keep track of the order of spring/check
-> > valve
-> > > etc and give a good cleaning.
-> > >
-> > > Also if the big ring nut on the back is loose it changes the stroke and
-> > > won't let go of the mandrel as well either.
-> > >
-> > > Still not working, remove the nose outer body and move the nose piece
-> > holder
-> > > forward half a turn or so on the threaded area and then tighten back up
-> > and
-> > > try again. Sometimes just a small adjustment here changes thing for
-> better
-> > > or worse as well!
-> > >
-> > > Good Luck,
-> > > Wayne G. O'Shea
-> > > oifa@irishfield.on.ca
-> > > www.irishfield.on.ca
-> > >
-> > > ----- Original Message -----
-> > > From: "Mike Davis" <mike.davis@dcsol.com>
-> > > To: <murphy-rebel@dcsol.com>
-> > > Sent: Monday, May 05, 2003 10:27 PM
-> > > Subject: Slow rivet gun
-> > >
-> > >
-> > > > OK, I know somebody has seen this before... I bought MAM's tool kit
-> with
-> > > my
-> > > > Moose, and the rivet gun I've got takes 4-5 seconds to let go of the
-> > > mandrel
-> > > > after every pull. I could go a lot quicker if I didn't have to sit
-> > there
-> > > > with my hand out waiting for the mandrel to fall out! This is the
-> plain
-> > > > Jane blue rivet gun that Murphy sells... is there a way I can adjust
-> > this
-> > > to
-> > > > allow the air to bleed out more quickly?
-> > > >
-> > > > Thanks, Mike

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Wayne G. O'Shea · Post by **Wayne G. O'Shea** » Fri Feb 17, 2012 10:59 pm

Have you been a bad boy and slugged the back of the pulling head with a
hammer to help put in a stubborn 3/16 rivet?? I do it all the time!;o))

This burrs the hole that the mechanism comes out through when it pulls and
then it drags as it's going back in, or the mechanism tube that pops out
sometimes gets oversize as well and needs to be ground off slightly.

Another thing to check is if your base has turned slightly from the body of
the gun. This hangs up the wire that goes from the trigger to the valve
mechanism and causes a slow release. If neither of those cure it then take
the check valve assembly apart that's below the air inlet fitting. Looks
like a nut, remove slowly and keep track of the order of spring/check valve
etc and give a good cleaning.

Also if the big ring nut on the back is loose it changes the stroke and
won't let go of the mandrel as well either.

Still not working, remove the nose outer body and move the nose piece holder
forward half a turn or so on the threaded area and then tighten back up and
try again. Sometimes just a small adjustment here changes thing for better
or worse as well!

Good Luck,
Wayne G. O'Shea
oifa@irishfield.on.ca
www.irishfield.on.ca

----- Original Message -----
From: "Mike Davis" <mike.davis@dcsol.com>
To: <murphy-rebel@dcsol.com>
Sent: Monday, May 05, 2003 10:27 PM
Subject: Slow rivet gun

OK, I know somebody has seen this before... I bought MAM's tool kit with

my

Moose, and the rivet gun I've got takes 4-5 seconds to let go of the

mandrel

after every pull. I could go a lot quicker if I didn't have to sit there
with my hand out waiting for the mandrel to fall out! This is the plain
Jane blue rivet gun that Murphy sells... is there a way I can adjust this

to

allow the air to bleed out more quickly?

Thanks, Mike

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Wayne G. O'Shea · Post by **Wayne G. O'Shea** » Fri Feb 17, 2012 11:01 pm

Try a SMALL squirt of light oil into the air fitting, hook it up and
strengthen you hand for awhile pulling and releasing the trigger. Maybe it
just needs to be broken in before you bother to tear her all apart!

----- Original Message -----
From: "Mike Davis" <mike.davis@dcsol.com>
To: <murphy-rebel@dcsol.com>
Sent: Monday, May 05, 2003 11:03 PM
Subject: Re: Slow rivet gun

Thanks Wayne, I'll definately go through all this tomorrow... don't think
it was anything I have done though since it was like this when I pulled it
out of the box!

Thanks, Mike

----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <murphy-rebel@dcsol.com>
Sent: Monday, May 05, 2003 6:42 PM
Subject: Re: Slow rivet gun

Have you been a bad boy and slugged the back of the pulling head with a
hammer to help put in a stubborn 3/16 rivet?? I do it all the time!;o))

This burrs the hole that the mechanism comes out through when it pulls

and

then it drags as it's going back in, or the mechanism tube that pops out
sometimes gets oversize as well and needs to be ground off slightly.

Another thing to check is if your base has turned slightly from the body
of
the gun. This hangs up the wire that goes from the trigger to the valve
mechanism and causes a slow release. If neither of those cure it then

take

the check valve assembly apart that's below the air inlet fitting. Looks
like a nut, remove slowly and keep track of the order of spring/check
valve
etc and give a good cleaning.

Also if the big ring nut on the back is loose it changes the stroke and
won't let go of the mandrel as well either.

Still not working, remove the nose outer body and move the nose piece
holder
forward half a turn or so on the threaded area and then tighten back up
and
try again. Sometimes just a small adjustment here changes thing for

better

or worse as well!

Good Luck,
Wayne G. O'Shea
oifa@irishfield.on.ca
www.irishfield.on.ca

----- Original Message -----
From: "Mike Davis" <mike.davis@dcsol.com>
To: <murphy-rebel@dcsol.com>
Sent: Monday, May 05, 2003 10:27 PM
Subject: Slow rivet gun

OK, I know somebody has seen this before... I bought MAM's tool kit

with

my
Moose, and the rivet gun I've got takes 4-5 seconds to let go of the
mandrel
after every pull. I could go a lot quicker if I didn't have to sit
there
with my hand out waiting for the mandrel to fall out! This is the

plain

Jane blue rivet gun that Murphy sells... is there a way I can adjust
this
to
allow the air to bleed out more quickly?

Thanks, Mike

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klehman · Post by **klehman** » Fri Feb 17, 2012 11:01 pm

Yes it will stop altogether eventually if not occasionally oiled in the
air line. To help pull things together, I use a regulator with only 30
or so psi which might also help speed the retract. If low on oil in the
hydraulic section the stroke increases which might also slow the
retract. If the mandral does not fall out by itself you might try one
size larger nose piece.
Ken

Wayne G. O'Shea wrote:

Try a SMALL squirt of light oil into the air fitting, hook it up and
strengthen you hand for awhile pulling and releasing the trigger. Maybe it
just needs to be broken in before you bother to tear her all apart!

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mike.davis · Post by **mike.davis** » Fri Feb 17, 2012 11:01 pm

After taking it all apart and looking at everything you mentioned in your
previous e-mail I finally used the bigger hammer method with success...
actually it was the bigger drill bit method. I took the small piston out of
the cylinder that the trigger actuates, and drilled the 2 small holes the air
escapes through out to #30. Works much better now.

Mike

On 5/6/2003 3:38 PM, MURPHY-REBEL@DCSOL.COM wrote to MIKE DAVIS:

-> Yes it will stop altogether eventually if not occasionally oiled in the
-> air line. To help pull things together, I use a regulator with only 30
-> or so psi which might also help speed the retract. If low on oil in the
-> hydraulic section the stroke increases which might also slow the
-> retract. If the mandral does not fall out by itself you might try one
-> size larger nose piece.
-> Ken
->
-> Wayne G. O'Shea wrote:
-> > Try a SMALL squirt of light oil into the air fitting, hook it up and
-> > strengthen you hand for awhile pulling and releasing the trigger. Maybe it
-> > just needs to be broken in before you bother to tear her all apart!

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Murray and Carol Cherkas · Post by **Murray and Carol Cherkas** » Fri Feb 17, 2012 11:01 pm

Mike:

Take the ring clamp off, remove the big black looking washer in the end,to
do this,after removing the ring just put a little air to it and the black
washer will fly out,don't point it toward yourself.Now pull the black
plunger out,clean the side walls of the barrel with throttle body
cleaner.Clean the shaft as well thats on the black plunger. Put some WD40 on
it. Make sure you don't loose oil out of the gun itself. If you do ,get a
funnel or something with a long tube and fill the gun back up with
oil.Reinstall the plunger and put the rest back together.

Now take the end apart where the rivets go in and clean it up as well.
Lubricate with WD40.Watch how it all comes apart for reassembly.
Have done mine twice. It's better than brand new.Tghis gun goes a long way
with a tune up.

Good Luck
Murray

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]
Sent: Monday, May 05, 2003 7:27 PM
To: murphy-rebel@dcsol.com
Subject: Slow rivet gun

OK, I know somebody has seen this before... I bought MAM's tool kit with my
Moose, and the rivet gun I've got takes 4-5 seconds to let go of the mandrel
after every pull. I could go a lot quicker if I didn't have to sit there
with my hand out waiting for the mandrel to fall out! This is the plain
Jane blue rivet gun that Murphy sells... is there a way I can adjust this to
allow the air to bleed out more quickly?

Thanks, Mike

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