Weather Shield Jamb Liner Removal?

A quick learner says:
Hello -

I don't quite understand how to remove a Weather Shield Jamb Liner to get to the Balance devices. I saw the video on this website but my jamb liner does not have screws/cover. I assume you use a putty knife to pop it out but want to make sure before I break something.

Windows were new installs on new construction ~2006.

Thanks for your help.
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Paul from SWISCO responded:
Hello, Tom. Sounds like you have tilt-in windows. I suspect that the jambs are actually held in with pressure from the sash. If you remove the sashes, you should be able to just pull the jambs out.
A quick learner says:
Thank you Paul. Yes, they are tilt-in double hung windows, upper and lower. I also have a request into Weather Shield but they have yet to respond. I will remove windows to see if I can just pop the jambs out.
A contractor from Seymour, WI says:
Yes the jam liners will pop out with a little help from a putty knive. Just becarefull not to crack the wood with to much putty knife pressure. Easy to replace the balances from top of jam. Knive point must face interior.
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