Seal Kit Installation for Yellow Jacket 4-In-1 Vacuum/Charge Valve and Core Tool with Side Port

Craig submitted

I have a Yellow Jacket 4-in-1 Vacuum/Charge Valve and Core Tool with Side Port part # 18975) which is leaking. I have purchased the Seal Kit (part # 18974) and can not figure out how to get the old seals out to replace them. I’d like to see a video on how to do this or at least provide installation instructions with the seal kit. Thanks.