What leveling actually fixes
Leveling a pinball machine means setting its legs so the playfield is even from side to side and tilted toward you at the angle the game expects. Side-to-side level is the part every owner can check at home with a bubble level. The front-to-back slope, called pitch, is set to the figure in your game's manual, and this article deliberately gives no number because the right one depends on the title.
When a machine is out of level, you notice it in play. The ball drifts toward one outlane, a shot that should be reliable misses by a little every time, or the ball feels slower or faster than it should. Moving a machine or changing rooms can undo a good setup, so it is worth knowing the routine.
What you need before you start
- A bubble level that is long enough to sit flat on the playfield without rocking, or an inclinometer or level app on a phone
- A second person, because the cabinet and backbox are heavy and awkward to lift
- The game's manual, for the pitch setting and for how its glass and lockbar come off
- Light oil for stiff or rusty leg levelers
- Leg protectors or floor pads, if you do not already have them
A hobbyist leveling guide from the Flippers.be site calls a plain bubble level "not very accurate" and says a phone level app is probably good enough for a general idea. It also describes a cardboard triangle cut to the target angle, and notes that some Bally and Williams machines have a built-in playfield bubble level. If your manual names a method for pitch, use that one.
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Step one: side-to-side level and the legs
Put the machine where it will live before you level it, since moving it afterward tends to undo the adjustment.
Take out the glass following the manual, with a helper, and set it aside somewhere safe. Place the level across the playfield from left to right in a clear spot and adjust the leg levelers until the bubble sits centered. Check more than one spot, and never rest the level on a post or plastic. The Flippers.be guide notes the lockdown bar may not be horizontal, so do not level from it.
The same guide says to turn a leveler clockwise to extend it, to oil stiff or rusty threads with a light oil, and to keep the two back legs set as equally as you can. It warns that if the front leg hooks do not line up, one leg may be set too high and twisting the cabinet. Make small adjustments to each leg instead of running one all the way out. If you need a lot of height on one corner, the floor is the problem, not the leg. Shim the floor or move the machine.
Step two: playfield angle
Pitch changes how fast the ball moves. A steeper slope speeds the game up, and a shallower slope slows it down. The Flippers.be guide gives a general rule of thumb of about 6.5 to 7 degrees, advises against going below 6, and says older electro-mechanical machines need only about 5. Treat that as a cross-check, not a replacement for your manual, which is the authority for your game.
The legs set the slope: raising the rear legs or lowering the front changes it, and every change can disturb side-to-side level, so check both again after each adjustment. The guide suggests playing for a few days or weeks before experimenting with a steeper angle, and making any change small and noted down.
Finally, check the tilt mechanism. The same guide warns that after a big angle change the tilt can become too sensitive, and the manual explains how to adjust the plumb bob. Test it gently after you finish.
Floor problems that throw the level off
Most leveling trouble comes from where the machine stands, not from the machine.
| Floor issue | What it does | What to try |
|---|---|---|
| Soft carpet or thick pile | Legs sink slowly and the level drifts over weeks | Use leg protectors or a firm pad under each leg; re-check after a month |
| Sloped concrete (garage or basement) | You run out of leveler range on one side | Shim under the low side with a rigid, flat spacer, or relocate |
| Hardwood or vinyl | Leg feet mark or dent the surface | Use leg protectors that spread the load |
| Bouncy or flexing floor | Level shifts when people walk by | Move the machine toward a wall or joist line if you can |
| Uneven leg feet or damaged levelers | One leg will not hold its setting | Replace the leveler; do not rely on a bent leg |
The arcade flooring guide covers floor choices for heavy machines. Leg protectors do double duty: they protect your floor and give the leveler foot a stable, wide base. Check that the protector fits your leg feet, since styles differ between makers, and rely on your manual for leg bolt and thread questions.
Safety before you lift or open anything
Never lift the machine by the backbox. If a leveler is stuck, look for rust or damaged threads rather than forcing it.
After leveling: check, play, recheck
Play several games and watch for a repeating drift. If the ball always creeps the same way, the side-to-side level is still off, even if the bubble looks fine. Repeat after a week, since pads settle.
A fresh setup also pairs well with fresh rubber. If the game plays slow after you level it, old rings may be the real cause, and replacing flipper rubbers and rings can wake it up. Buying your first machine? The first-day setup checks cover the other basics, and the pinball machine buying guide explains what to look for on a used table. If you want the pinball feel with no legs to level, the virtual pinball guide covers that route.
Frequently asked questions
How level should a pinball machine be?
Side to side it should read level on a bubble level. For front-to-back slope, use the pitch in your game's manual; one hobbyist guide gives a rule of thumb of about 6.5 to 7 degrees.
Why does my pinball keep rolling to one side?
Usually the machine is out of level side to side, the floor is sloped, or a leg has sunk into carpet. Recheck the level in several spots on the playfield.
Should I change the pitch to make the game faster?
You can, in small steps. A steeper slope speeds the ball up and a shallower one slows it. Note the original setting and recheck level after each change.
Do I need leg protectors?
They are not required, but they protect floors and give each leveler foot a stable base, which helps the setting hold.
Do I need to unplug the machine to level it?
Leveling itself does not need power, but unplug it before lifting the playfield or reaching inside, since pinball machines carry mains voltage.
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