Trailer hitch lock is stuck

I bought an old used pickup truck a few months ago that has a trailer hitch
with a lock on it. I have the keys to the lock, but I can't get the lock to
open so I can remove the towbar/ball (or whatever that is called).

Here's a link to an online image of a lock that looks like the one I have:

http://www.pacifictrailers.com/index.cfm?fuseaction=product.prodInfo&prodId=48724&docid=2kcfXgbZ4HoiuM&imgurl=http://imageserv3.team-logic.com/store-logic/products/159/48724/651.jpg&w=480&h=293&ei=8jiwT8zgKsOJ6AHs_ui1CQ&zoom=1&iact=hc&vpx=93&vpy=392&dur=13500&hovh=175&hovw=287&tx=40&ty=197&sig=114592502974803465707&page=1&tbnh=95&tbnw=156&start=0&ndsp=21&ved=1t:429,r:14,s:0,i:110/

Hopefully, the link will work.

The lock has a press-type button on the end. The key goes in, and
everything seems to turn freely, etc. But I can't get the lock to come off
so I can pull the bar out and remove the towbar/ball.

I have used oil etc. to get everything loose, and I have tried tapping on
the mechanism. It just won't come apart. If I can't figure it out, I guess
I'll have to cut the lock off.

Does anyone have any suggestions of what else I could try?


.

Relevant Pages

  • Re: Still Struggling...
    ... I still think the relationship is between keys and locks, ... Ignoring master keys for the moment, you have One Lock: Many Keys, so LockID is a FK in tblKeys. ... One master key can open several locks, and each lock can be opened by several different keys including the master key. ... If there is to be a junction table I think it would be between locks and keys. ...
    (microsoft.public.access.gettingstarted)
  • Re: Still Struggling...
    ... I don't think it would be a junction table. ... lock is an entity with certain characteristics such as brand, location, date ... One Lock can have many keys. ... Similarly, one lock may have many keys, but other than master keys a key may open only one lock. ...
    (microsoft.public.access.gettingstarted)
  • Re: Still Struggling...
    ... KeyID (1/2 PK, FK to tblKeys, number, l.i.) ... tblLocationTypes 1:M tblLocations ... It would be nice to have a list of unassigned keys but...it's a little ... One Lock can have many keys. ...
    (microsoft.public.access.gettingstarted)
  • Re: Last time
    ... would ever be able to find them (and the thing about safes and lock boxes ... It's not illegal to crack your own safe. ... forgetting about taking a lot of meds. ... I've rehidden those keys. ...
    (alt.support.chronic-pain)
  • Re: Still Struggling...
    ... While keys are what drove my desire to create this db in the first place, ... but once we changed tblRooms to tblLocations, ... One Lock can have many keys. ... If it was me I think I would have an AssignedTo ...
    (microsoft.public.access.gettingstarted)