If you would also like to install one (highly recommended),
Heres how:
First get or buy a small coil bracket:
coil bracket (resized).jpg
I used one off an old Z-bracket from a slingshot assembly.
Drill out the threaded hole into it for a couple 1/2" #8 playfield screws with a 3/16" bit.
Remove all the balls and secure the playfield in its vertical position with a ratcheting hand clamp:
ratchett clamp (resized).jpg
Find a likely spot to install it. Lower is better.
Likely spot:likely place (resized).jpg
I installed it near the center. This becomes a good place later as you need to have room for the strap to stretch out.
Installed:
coil bracket installed (resized).jpg
Next, you need an eyebolt, a 1/4-20 t-nut and washer.
The eyebolt is about 5/8" or 3/4" wide with a 1" threaded leg on it at 1/4 x 20 thread.
eyebolt assembly (resized).jpg
eyebolt length (resized).jpg
Next I stretched out the strap until it had good tension (about 1 1/2" to 1 3/4" of stretch on my straps. 2" was too tight) and found a good spot to the left of the transformer on the transformer deck:
eyebolt location (resized).jpg
When you locate the hole for the eyebolt make sure there is enough room to turn the bolt in order to tighten it.
I used a 19/64" drill bit for the t-nut with a 3/16" pilot hole drilled first.
It must NOT be too close to the metal edge! Or too close the edge of the wood (to avoid splitting out).
Where I located the hole it worked perfectly, and was very close to the metal edge, but it worked.
I slid the t-nut under the edge of the deck (with fingers) and used a 1/4-20 bolt and fender washer as an installation tool, with a 7/16 socket and ratchet to draw it up (holding it in place with fingers).
Dont strip out the t-nut with the ratchet!
t-nut setting tool (resized).jpg
7-16 socket with extension (resized).jpg
Install the eyebolt with the washer, add the strap and ENJOY!
I used the big drill bit in the eyebolt loop to do the final tightening, but pliers or pretty much anything that fits will do it.
top view (resized).jpg
This solution is VERY secure and makes it possible to use nut drivers, and work on the lower playfield screws without having to hold up the playfield by
hand.
Its quick, easy, inexpensive and makes the nightmarish fear of the playfield falling down, a thing of the past.
It also does ZERO damage to the game.
Finally I can work on the game without a "spotter" to keep the playfield from killing me, or walk away from it and not worry about it being nudged and falling..