Picked up this non-working Yong Heng pump a few months ago from a semi-local AGN member. A few weeks ago, I decided to tear into it and see what was wrong with it. Ordered new replacement parts from Aliexpress and they were delivered a few days ago. I put it back together yesterday and topped off two of my three SCBA tanks (30 min & 45 min) from 3300psi to 4300 psi. It's working great now and looking for a few more years of service.
Parts ordered:
- Piston assembly
- gasket set
- High pressure one way metal gasket
Parts ordered:
- Piston assembly
- gasket set
- High pressure one way metal gasket
![vk2aS2C.jpg](https://i.imgur.com/vk2aS2C.jpg)
![RfPJwXw.jpg](https://i.imgur.com/RfPJwXw.jpg)
![OTGw0eD.jpg](https://i.imgur.com/OTGw0eD.jpg)