Take a close look at the conical top cap of the hinge pin and you'll see a slot for a screwdriver. Unscrew the cap and push the pin out downwards. They were made this way to allow regular oiling of the hinge pin bushings. There is a picture illustrating this in the 1934 Service Letters.
If you don't see the slotted cap on top, look at the underside, they may be installed upside down. Pix of the hinge pin mirror on my 34 attached.
(EDIT - adding the info from the Service Letter)
Attach file:
(96.26 KB)![177_49c63dee86b5f.jpg 1217X793 px](https://packardinfo.com/xoops/html/uploads/newbb/thumbs/177_49c63dee86b5f.jpg)
(92.11 KB)![177_49c662efae325.jpg 757X1108 px](https://packardinfo.com/xoops/html/uploads/newbb/thumbs/177_49c662efae325.jpg)
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