HW/Weihrauch HW44 o ring list and teardown

Jump to latest Follow Reply
slcrcflyer

slcrcflyer

Member
Nov 1, 2018
382
207
UT, United States
Hello my friends, does anyone have an O-ring size chart / list for an HW44? Also a link to a disassembly video would be awesome. I found an HW44 parts from weihrauch but of course there are no sizes just part numbers.

Bought this PCP long before I made sure there was ample information regarding O-ring sizes, and teardown videos 📹. So I could fix it when it developed a leak.

Thank you everyone
 
Here’s a couple vids on the HW110 - rifle version of HW44:

I’ve torn down my HW110 at least a dozen times, trying different reg pressures, hammer spring shuttles and barrels. The guns have very few parts, disassemble like legos. Not many o-rings except for the regulator assembly - that I’ve not had to dig into - thankfully. German design, well thought out.



-Ed
 
Upvote 0
Jerss what I purchased based from another users post. Sorry can't give game to original poster a sindo t remember. I bought the complete kit. As there's several to choose from in their drop down choices.

www.ebay.com

HW110 & HW44 Full Service Seal Kit, Grease & DIAGRAM Weihrauch Orings & Molykote | eBay

Service Seal Kit for Weihrauch HW110 & HW44. Full Seal / Service Kit = £13.50 ALL service & Air Cylinder & Gauge seals & Molykote 111. If you need a printed version of our exploded diagram on A4, just let us know.
www.ebay.com
 
Upvote 0
Hi everyone after talking to my good man at AOA they hooked me up with the part number and size crossreference. Much kudos to Airguns of Arizona! They did admit that Weihrauch isn't that good at even giving them information. Sure wish that manufacturers learn to give their customers the ability to repair their own products like FX, Daystate, and Edgun to name a few.

All of the o-rings are in the top right for the air cylinder. The sizes are as follows:

6.2974a 9x1.5
6.2955d 3x1.5
6.2666 7x1.5
6.2974b 10x1
6.2661 2.57x1.78 90Duro
6.2977 2.9x1.2
6.2618a 5x1.5
6.2710 5x1.5
Cylinder seal 26.7x1.78
Inlet seal 2.9x1.78 90Duro

Teardown of the HW44 was straight forward and I'll be posting a how to video 📹 as there is very little information available. I did find the inlet O-ring was leaking as it was smashed flat from the spring pressure. If anyone needs help with their Weihrauch HW44 post a reply.

View attachment WW-Luftpistole-HW-44-04-2018 (1).pdf
 
  • Like
Reactions: pierceg, TerryE1, EPG and 1 other person
Upvote 0
You must log in or register to reply here.
Top Bottom
Back
Home
Forums
Resources
Menu