Bingo Overhaul
inspection
Magic Ring |
| You can't get any more accessible than this |
|---|
The side rails that hold in the backglass are still on, but they've been loosened to keep the panel from scraping them as it's swung up and down.
The first thing I do is step up a few units by hand and reset them. If they
reset smoothly and quickly, then they won't need to be disassembled. They should
step to the top without the return spring winding too tight. The classic solution
in the field for a unit that was getting gummed up was an extra helping of
WD-40 and tightening the return string an extra turn. Once the return spring
got too tight, the unit couldn't step up anymore. Hmmm, let's see, the score units
can't step up to maximum odds because the spring is too tight...clean units=less profit.
Is it any wonder WD-40 was sold in 55 gallon drums?
Every bingo I've seen has some amount of crud built up
inside the mixer unit. It's basically a combination of
dirt, oil, and particles from the leather clutch washers.
This game doesn't have much, but I'll disassemble the mixer
unit anyway to clean it and lubricate/replace the clutch washers.
They should last another for 100 years with casual use.
Magic Ring |
| Crud in the mixers |
|---|
Gunk falling into the backs of wiper boards like this won't
hurt anything, but when it falls on the front and gets smeared
around by the wipers, you'll start to have failures.
Magic Ring |
| If you don't think oil attracts dirt... |
|---|
Of more interest, however, are those two cruddy wires that are under the plastic clamp, but not inside the bundle wrappings. These wires most likely weren't put there by the factory!
