Hw90 Reseal Apr 2026

uses compressed air that must be safely discharged before you even touch a screwdriver.

Resealing a Weihrauch HW90 requires a different approach than standard springers because of its . Unlike a coil spring, the HW90 Reseal

Before starting, ensure you have a dedicated and the necessary charging equipment. uses compressed air that must be safely discharged

: A full set typically includes four internal O-rings (for the valve and inertia weight), a 30mm piston seal (often upgraded to an Aussie Red or Vortek seal for better performance), and a new Schrader valve core . : A full set typically includes four internal

: You will need a Weihrauch-specific pump and gauge or a high-pressure pump with a Schrader-to-1/8 BSPP adapter Standard Tools : A 3mm punch, flathead screwdrivers, and a Schrader valve torque tool to avoid over-tightening the delicate valve. The Reseal Process Break Barrel Air Rifle Maintenance Part 1