The twist style head lock appears a simple and elegant mechanism, with its hex wrench companion. Tonight, after some simple maintenance on my JP, the lock will not rotate, except for a very little bit. Suggestions?

20210217_235956 (resized).jpg

#2 3 years ago

CRD

chad

Game Guy

11y 140K 15,202 9 4

Not sure if a little WD40 would help?

#3 3 years ago

RUS

RussMyers

Pinside member

Linwood, NJ

12y 76,550 2,886 7

Can you post a pic looking down into it from above?

Is the box square or have the side been pinched in a bit? It's softish sheet metal.

RussM

#4 3 years ago

JCB

JohnBillerman

Pinside member

Champaign, IL

11y 29,200 38 34

The indentation visible on the front (and correspondingly on the back) creates a bump on the interior which provides the ratchetting feel/function for the lock.

My next step is to go ahead and pry it apart a bit to see if those ridges are causing the binding.

#5 3 years ago

TPR

frunch

Pinside member

Point Pleasant, NJ

11y 135K 3,642 10

Have you tried lightly pulling or pushing the backbox while attempting to rotate the lock? I could swear i ran into this same problem on a friend's DE game recently and that was the trick.

Good luck!

#6 3 years ago

JCB

JohnBillerman

Pinside member

Champaign, IL

11y 29,200 38 34

I was able to manhandle it past whatever was holding it up and now it's moving freely.

I think I must have overextended it while trying to latch it. (I was trying to secure a glare guard under the head and it wouldn't catch.)

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