FX Pump rebuild.

A place to share your tips and tricks for modifying your FX Airgun.

FX Pump rebuild.

Postby FXpoacher on Tue Sep 30, 2008 1:31 pm

As usual, tobbes speedy service had the service kit in my post box today! :)
1 hr later, the pump was rebuilt and working a treat.

Now the problem: i dont have space on image shack for all the pics i took! :evil:
Polar, Is there a way that i can load them direct to the site?.
Its 18 pics were talking about.
FXpoacher
 
Posts: 388
Joined: Tue May 27, 2008 5:57 pm
Location: Sweden

Re: FX Pump rebuild.

Postby PolarWolf on Tue Sep 30, 2008 3:26 pm

Sure, just add them to your post as attachment. That's the easiest way. If the software complains about too many pictures, split the post up into two parts.
Webley FX2000 .22
FX T400 .25
FX Monsoon .22 Walnut
FX Cyclone .177 Regulated
FX Biathlon .177 Regulated

I've had:
Pretty much every model FX made :)
User avatar
PolarWolf
Site Admin
 
Posts: 971
Joined: Fri Mar 21, 2008 12:55 pm
Location: Fryslan, Netherlands

Re: FX Pump rebuild.

Postby FXpoacher on Tue Sep 30, 2008 4:41 pm

Ok, made the pics smaller and dumped the ones that wer'nt that good.

Ok then, first start with a clean and tidy flat surface, that you can leave stuff on without any prying hands to "move" stuff around!.

I started by removing the pressure meter, Hose and bleed screw, then the base plate you stand on when pumping.
I then put the block in my carpenters vice, with the tube section up.
Image.

You then unscrew the brass nut to remove the pump from the block.
:!: Now you have to be carfull here, as the block is filled with small glass balls, which act as the moisture trap. This is why it is important to have the block upright when removing the pump section!!

At the bottom of the pump section, you see a brass pointy bit. Unscrew this to reveal a spring and a no return valve.
Image

The valve can be dumped as a replacment comes in the kit.

Now you loosen the brass screw from the blue tube, but leave it in place hand tight.
Image

Now remove the handle from the top, by unscrewing the 2 screws, then on the side you will see another screw.
Undo this so the top cap can be removed.
Image

Then with a small allen key, push out the pin wich holds the top cap in place.
Image
There is a small rubber ball inside, and a replacement comes with the kit.

Then you unscrew the bottom nut by hand and draw out the internal "gray" tube
Image

You then have the gray tube free
Image

Then with a spanner on the base nut and grips on the top brass bit, you unscrew the nut. It is the top bit that comes away.
Image

Image

The center tube can then be drawn out from the outer tube.
Image

You should have 4 large peices, and if not, you missed a bit! :lol:

Here you see the kit which has about 50,000 'O' rings!
Image.

This time when i changed the rings, i took a tube, removed and replaced 1 o ring at a time, using the drawing to identify the correct part nr.

There are internal O rings as well, so look at each peice carefully, untill your 100% sure you have changed each ring.
The kit includes a small bag of grease, and i lightly lube each ring AFTER i fit it.

The only real problem is the high pressure ring on the center section.
This one is easily cut away with a sharp blade and the new one threaded on carefully.

Then the reasembly is done in the reverse order.

I changed the partical filter as well, (which dosnt come with the kit).
When i first used it again, the no return valve wouldnt open untill it hit 80bar, but now works fine as the grease slowly finds it way to it.

Armed with this info, the diagram that comes with the kit, and a few hours, you can do this no trouble!
Good luck! :lol:
FXpoacher
 
Posts: 388
Joined: Tue May 27, 2008 5:57 pm
Location: Sweden

Re: FX Pump rebuild.

Postby PolarWolf on Tue Sep 30, 2008 7:09 pm

Good writeup. I edited your post a bit to include the pictures inline. Hope you don't mind. I'm sure this will be helpful when I'm going to try and fix my own pump!
Webley FX2000 .22
FX T400 .25
FX Monsoon .22 Walnut
FX Cyclone .177 Regulated
FX Biathlon .177 Regulated

I've had:
Pretty much every model FX made :)
User avatar
PolarWolf
Site Admin
 
Posts: 971
Joined: Fri Mar 21, 2008 12:55 pm
Location: Fryslan, Netherlands

Re: FX Pump rebuild.

Postby ian johnstone on Tue Sep 30, 2008 7:40 pm

Very good 'report' or demo Jeff, most impressive! (the gloves were quite professional, I thought)

I was a bit surprised at the number of 'O' rings :o
ian johnstone
 
Posts: 979
Joined: Sun Apr 06, 2008 5:34 pm
Location: Cotswolds. U K

Re: FX Pump rebuild.

Postby FXpoacher on Tue Sep 30, 2008 8:20 pm

PolarWolf wrote:Good writeup. I edited your post a bit to include the pictures inline. Hope you don't mind. I'm sure this will be helpful when I'm going to try and fix my own pump!


No worries! :D
I can shoot, fix stuff, but computers just do my head in!

:lol: :lol: OK ian, theres probably only 20 or so 'O' rings! :lol:
FXpoacher
 
Posts: 388
Joined: Tue May 27, 2008 5:57 pm
Location: Sweden

Re: FX Pump rebuild.

Postby steveww on Wed Oct 01, 2008 1:09 pm

Great write up, thanks :)

Where did you get the rebuild kit from?
User avatar
steveww
 
Posts: 47
Joined: Sat Aug 16, 2008 8:04 pm

Re: FX Pump rebuild.

Postby FXpoacher on Wed Oct 01, 2008 2:37 pm

Hurricane luftvapen here in Sweden.

http://luftvapen.e-butiken.se/

The guy is called Tobbe, and if you give him a ring, i'm sure he can help you out.

Tel: 0046 - 451-91090
FXpoacher
 
Posts: 388
Joined: Tue May 27, 2008 5:57 pm
Location: Sweden

Re: FX Pump rebuild.

Postby Bridger on Thu Oct 02, 2008 10:02 am

As usual a very informative post, well done Jeff :)
Bridger
 
Posts: 42
Joined: Sat Aug 30, 2008 9:05 am
Location: Denmark

Re: FX Pump rebuild.

Postby raptorx on Sat Oct 04, 2008 4:26 pm

great post, thank you very much.

how old your pump was? or approximately how many times you used it?

ATB
FX Gladiator .22
Webley Raider 10 .22

(avatar: courtesy of Fender)
User avatar
raptorx
 
Posts: 217
Joined: Sun Jun 29, 2008 8:47 pm
Location: Ankara, Turkey

Next

Return to Tips, Tricks and Tuning

Who is online

Users browsing this forum: No registered users and 1 guest

cron