Winchester ranger 19 safe won't open. It has the mechanical combination lock. I've tied it many times and have not been able to unlock it.

Apparently when you got the safe, you also got an emergency key for it as well, just in case you forgot the combination. The key also permits you to reprogram the safe. Where might the key be? --Perhaps with the documentation for the safe or a safety deposit box or gun maintenance materials. It is anybody's guess where you hid the key. You otherwise will have a difficult time opening the safe on your own. You may need a referral to a locksmith but here is the phone number to the technical services of Winchester Safes: Technical Service at 877-948-6723.

notify manufacturer or a locksmith

I have a Winchester safe with a digital code pad. I changed the number and forgot it and haven't opened it in 4 years. How do I reset code without the current code?

No.

If you have the emergency key, it's simple!
How to Open Safe if You ve Forgotten the Combination eHow

If the safe is open:
How to Change the Combination on Winchester Gun Safe eHow

If you have it open and you know the combination you should be able to close it and turn the opening handle and spin the dial to lock the door. But do not do this unless you for sure KNOW what the correct combination is because if you do not and you get it locked you will not get it unlocked. Run the combination while it is opne now to be sure it is fully opened etc. which it sill need to be to lock it.

Contact the manufacturer.

Go to "Customer Support" and "Combination Request"...

The Deputy Series Owner's Manual is at...
http://winchestersafes.com/ownersmanual.aspx