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Pinball machine maintenance starts with a simple routine: shut the game off, remove the balls, clean the playfield gently, and check the parts that take the most wear. Done regularly, that keeps the machine playing smoothly and helps you avoid the kind of small problems that turn into expensive repairs.

You do not need a full workshop to handle most upkeep. A few basic tools, the right cleaner, and a little care are usually enough for dusting, wiping down surfaces, checking bulbs and switches, and spotting loose hardware before it causes trouble.

The key is knowing what to do, when to do it, and what not to touch. Once you understand the right order, maintaining a pinball machine becomes a straightforward habit instead of a nerve-wracking chore.

What you need before you start

You do not need a huge toolbox to keep most games in good shape, but you do want the right basics on hand. Using the wrong tool or a rough cloth is one of the fastest ways to scratch plastics, strip bolts, or crack a part that was already aging.

Smartphone camera for photos before you move anything
Soft microfiber cloths
Small shop vacuum with a brush attachment and crevice tool
Novus 1 for routine cleaning
Novus 2 for stubborn grime
Q-tips or foam swabs for tight spots
Needle-nose pliers
Flat-head and Phillips screwdrivers
9/16-inch wrench for many head bolts
5/8-inch wrench for many leg bolts
8 mm Allen wrench for some newer Stern-style hardware
Spare pinballs and the correct rubber ring set for your machine
Replacement bulbs or LEDs if your game uses them

For deeper repair work, a soldering iron and multimeter can be useful, but they are not part of routine cleaning. If you are not already comfortable soldering or diagnosing electrical faults, stop at inspection and basic maintenance.

Know what kind of machine you have

Maintenance changes a bit depending on the era and finish of the playfield. If you know what you are working on, it is easier to choose the right cleaner, decide whether wax makes sense, and avoid overdoing it.

Machine type	Typical era	What to keep in mind
EM / electro-mechanical	Mostly pre-late-1970s	Older parts, more mechanical wear, and more reason to inspect switches, sleeves, and rubbers carefully. Non-clearcoated surfaces are more likely to benefit from careful waxing if the finish is healthy.
Solid-state	Late 1970s through 1980s	Electronics are more reliable than EM games, but connectors, lamps, and flipper parts still wear out. Cleaning alone is often enough unless the playfield is dull or slow.
DMD-era	1990s and later	More complex toys, ramps, and modes. Clean carefully around plastics and clearcoated surfaces, and treat wax as optional rather than automatic.
Modern clearcoated game	Modern Stern and similar machines	Many owners stick with light cleaning and occasional optional wax for speed. Heavy abrasives are a bad idea on these finishes.

One important distinction: wax is not a universal rule. Older or non-clearcoated games are the most likely to benefit from it, while many modern clearcoated machines are fine with regular cleaning alone. If you want extra speed, wax can help, but it is a preference choice more than a mandatory step.

Step-by-step cleaning process

This is the safest order for routine maintenance. Work slowly, and do not skip the photos before you move parts.

1. Unplug the machine and remove the balls

Unplug the game first, then confirm it really is off before you touch anything inside. Remove the pinballs so they do not roll around and scratch the playfield while you work.

2. Remove the glass and lift the playfield

Open the coin door, release the lockdown bar, and carefully slide the glass out. Handle it like a sheet of heavy, fragile glass, because that is exactly what it is. Then lift the playfield according to your machine’s design and secure it before you lean into the cabinet.

3. Take photos before you disconnect or remove anything

Photograph the topside of the playfield, the underside if you can reach it safely, and any connectors or parts you expect to remove. Those photos are your reference when it is time to put everything back where it belongs.

4. Vacuum loose dust first

Use the soft brush attachment to remove loose dust from corners, around posts, and near flippers and slings. Hold the vacuum away from fragile plastics and decals so you do not pull up anything that is already loose.

5. Wipe the playfield with the right cleaner

For routine cleaning, start with a dry microfiber cloth. If that is not enough, use Novus 1 on the cloth. For stubborn grime, use Novus 2 sparingly. Apply cleaner to the cloth, not directly to the playfield.

Work from the lower part of the playfield upward so you are not dragging dirt back over freshly cleaned areas. Use Q-tips for tight spots, but do not soak them. A little cleaner goes a long way.

6. Clean the glass separately

Clean the top glass with a glass-safe cleaner on a cloth before reinstalling it. Keep the cleaner away from the playfield and the cabinet wiring. If your machine has artwork or delicate backbox glass, check the manual before using any solvent on it.

7. Let everything dry and reassemble

Before you close the machine, make sure all wiped surfaces are dry. Reinstall the glass, lower the playfield carefully, lock everything back down, and then restore power.

What to inspect while the playfield is open

Cleaning is only half the job. The other half is spotting the small wear items before they turn into a bigger repair.

Pinballs: Replace balls that are pitted, rusty, or visibly rough.
Rubber rings: Cracked, shiny, or stretched rings should be replaced instead of scrubbed forever.
Flipper sleeves: Worn or melted sleeves can cause sluggish flippers.
Plungers and links: Look for wear that makes the flipper feel weak or uneven.
Coil stops: A worn coil stop can make the mechanism feel soft or noisy.
EOS switches: Check end-of-stroke switches on games that use them, especially if a flipper is weak or inconsistent.
Loose screws and posts: Tighten anything that works loose, but do not overtighten and crack old plastics.
Connectors and wiring: Look for disconnected plugs, broken leads, or anything that looks heat-damaged.

If a flipper is slow, do not assume it is just a dirty switch. In practice, the problem is often a worn sleeve, plunger, coil stop, link, or EOS issue rather than a simple loose screw. That is why a visual inspection matters before you start replacing parts at random.

When waxing makes sense

Wax is optional, and the right answer depends on the machine. On many modern clearcoated games, owners use light cleaning and skip wax unless they want a faster playfield. On older games, especially those without the same kind of protective finish, a careful wax job can make more sense.

Use a gentle, pinball-safe approach if you decide to wax:

Clean the playfield first
Use a light hand with any wax or polish
Avoid abrasive products as routine cleaners
Do not treat wax as a fix for worn or dirty parts

Do not use aggressive compounds on a playfield unless you know exactly why you are using them. A cleaner that is too abrasive can dull the finish or damage artwork. Novus 3, in particular, is not a normal playfield cleaner.

Common mistakes that can damage the machine

Most damage during maintenance comes from rushing, overcleaning, or using the wrong product in the wrong place.

Spraying cleaner directly onto the playfield
Using too much liquid near holes, switches, or wiring
Using rough cloths that can scratch clearcoat or plastics
Overtightening bolts and cracking old wood or plastics
Cleaning until a part looks bright but is actually worn out
Skipping photos and forgetting where parts go
Treating a flipper issue as a cleaning issue when it needs a parts replacement

If you only remember one rule, make it this: cleaner goes on the cloth, not the playfield.

What to test after each cleaning session

Before you button everything up for good, run a quick check. That catches mistakes while the game is still open.

Restore power and confirm the game boots normally.
Check lamps, displays, and sound.
Test each flipper for strength and responsiveness.
Check that switches, targets, and bumpers respond in test mode if your machine has one.
Watch a ball roll across the playfield to make sure nothing is rubbing or sticking.
Listen for unusual coil, switch, or relay noises.

If something does not behave correctly after cleaning, look first for a loose connector, a missed screw, a damaged ball, or a part that was already worn before you opened the machine.

Simple maintenance schedule

You do not need to strip a machine apart every time you play it. A simple schedule keeps the game in good shape without turning maintenance into a weekend project.

When	What to do
After a heavy play session	Quick wipe of the glass and cabinet touch points, visual check for broken rubbers or loose balls.
Every few months	Light vacuuming, playfield wipe-down, ball inspection, and a look at flippers and rubbers.
About once a year	Deeper clean, replace worn balls and rubber rings, check lights, inspect connectors, and review flipper wear.
Whenever gameplay feels off	Inspect flippers, switches, and worn parts before assuming the issue is electrical.

If you keep a small service notebook, it becomes easier to spot patterns like recurring switch problems, weak flippers, or a ball path that keeps getting dirty faster than the rest of the playfield.

Troubleshooting after reassembly

If the game does not behave the way it should after maintenance, work through the simplest fixes first.

Game will not start: Check the power connection, door switch, and any obvious unplugged connectors.
One lamp or feature is dead: Look for a blown bulb, loose socket, or a connector that was bumped during cleaning.
Flipper feels weak: Inspect the sleeve, plunger, coil stop, link, and EOS switch before you assume the coil is bad.
Ball sticks or drags: Check for a misaligned part, a loose post, or debris in the lane.
Something smells hot: Shut the machine down and inspect for a binding coil or short before continuing.

If you are comfortable with electrical work, a multimeter can help with diagnosis. If not, this is the point where a pinball technician is the smarter fallback.

How to find help if the fix goes beyond basic maintenance

Not every problem is a maintenance problem. Some issues need a technician, especially when the fault is in the wiring, board set, or a flipper assembly that has already worn past a simple adjustment.

Local pinball operators are often the fastest way to find help. Ask at arcades, bowling alleys, pizza places, or sports bars that keep machines on site, because they usually know who services them. If that does not work, a local dealer or route operator may point you toward someone reliable in your area.

For a deeper repair, it is also worth confirming whether the machine is EM, solid-state, or DMD-era first. That helps the technician bring the right parts and reduces the chance of paying for guesswork.

Frequently asked questions

How often should I clean a pinball machine?

For most home-use games, a light wipe-down and inspection every few months is enough, with a deeper clean about once a year. Heavy use may call for more frequent attention.

Can I use water to clean the playfield?

No. Water is a bad idea on the playfield because it can cause damage, lift dirt into the wrong places, or lead to warping and other finish problems.

Do I need to wax every pinball machine?

No. Wax is optional. Older or non-clearcoated games are the most likely to benefit, while many modern clearcoated machines do fine with simple cleaning and occasional inspection.

What is the safest cleaner to start with?

Start with a dry microfiber cloth. If that is not enough, move to Novus 1, then Novus 2 only for tougher grime. Avoid using aggressive cleaners as routine maintenance.

What should I check if the flipper is weak after cleaning?

Look at the sleeve, plunger, coil stop, link, and EOS switch. Weak flippers are often a wear issue, not just a cleaning issue.

Keeping a pinball machine in good shape is mostly about consistency. Clean gently, inspect the wear parts while the game is open, and fix small problems before they turn into expensive ones. That is usually enough to keep the machine playing fast and looking good for a long time.

Pinball Machine Maintenance: Tools, Schedule, and Step-by-Step Care