How to Clean a Flipper

Flippers are the heart of a pinball machine’s playfield, delivering the precise responses players expect. Cleaning a flipper involves careful disassembly, proper cleaners, and gentle polishing to restore smooth action without damaging delicate components. This guide focuses on safe, practical steps for American hobbyists and arcade enthusiasts aiming to extend the life of their flippers and improve responsiveness.

Regular care helps prevent sticking, misfires, and excessive wear. By following a structured routine, players can enjoy consistent ball bounces and better control during high-speed games. The process outlined here emphasizes safety, proper lube application, and the use of specific cleaning tools designed for electronics and mechanical parts.

Quick Answer

Quick method: Power down the machine, remove the playfield glass, detach the flipper from its linkage, clean all moving parts with isopropyl alcohol, wipe with a non-abrasive microfiber cloth, inspect the coil and linkage, and reassemble with minimal resistance. If flipper action remains gritty, consider a rebuild kit for deeper restoration.

What You’ll Need

The following tools and materials align with common flipper maintenance tasks. Gather these before starting to avoid interruptions during the job.

  • Pinball machine flipper cleaning kit
  • Pinball flipper rebuild kit
  • Precision screwdriver set for electronics
  • Isopropyl alcohol 99% electronics cleaning spray
  • Non-abrasive microfiber cloth electronics cleaning
CLEANING HEROES 99% Isopropyl Alcohol Spray, 32 Fl. Oz - Ultimate Rubbing Alcohol Cleaner for Electronics, Wounds, and Household Use CLEANING HEROES 99% Isopropyl Alcohol Spray, 32 Fl. Oz – Ultimate Rubbing Alcohol Cleaner for Electronics, Wounds, and Household Use

Stern Sega Pinball Flipper Rebuild Kit Stern Sega Pinball Flipper Rebuild Kit

JOREST 59Pcs Small Precision Screwdriver Set with Torx T5, T6, T8, Mini Repair Tool Kit for Macbook, Computer, Laptop, iPhone, PS4 PS5, Xbox, Switch, Eyeglasses, Watch, PC, Ring Doorbell, Electronic JOREST 59Pcs Small Precision Screwdriver Set with Torx T5, T6, T8, Mini Repair Tool Kit for Macbook, Computer, Laptop, iPhone, PS4 PS5, Xbox, Switch, Eyeglasses, Watch, PC, Ring Doorbell, Electronic

Before You Start

Choose a well-ventilated workspace and ensure the machine is unplugged before any disassembly. Remove the playfield glass carefully and set it aside. Have a small tray or magnetic dish ready to hold tiny screws and components. Wear eye protection if dust or small parts may become airborne. Expect a 30–60 minute session for a standard flipper cleaning, depending on the flipper model and whether a rebuild is needed.

Step-By-Step: How To Clean A Flipper

  1. Power down the game and unplug the unit. Disconnect any power cords and ensure the cabinet is completely off to avoid electrical shocks.
  2. Remove the flipper from the playfield by loosening its mounting screws with a precision screwdriver set for electronics. Note how linkage parts align for correct reassembly.
  3. Inspect the linkage and coil assembly for signs of wear, debris, or corrosion. If components look damaged, set aside for rebuild or replacement.
  4. Spray a small amount of isopropyl alcohol 99% electronics cleaning spray onto a microfiber cloth and wipe all contact surfaces, including the linkages, pawls, and pivot pins. Avoid soaking the assembly; use a controlled, light swipe.
  5. Gently scrub any stubborn grime with the cloth, then use a dry spot to remove excess moisture. Pay special attention to areas where dust accumulates and where the flipper pivots.
  6. Reassemble the linkage and coil assembly in the same orientation as removed. Tighten screws securely but not overly tight to avoid stripping threads or restricting movement.
  7. Test the flipper outside the cabinet by reconnecting power and triggering the switch. If the action is sticky, apply a thin amount of lubricant designed for electronics and mechanical flippers as recommended by your rebuild kit instructions.
  8. Reinstall the flipper on the playfield and verify smooth motion through full travel. Confirm that the flipper returns to rest position consistently after each press.
  9. Perform a brief game test to ensure the cleaned flipper responds accurately to button presses and interacts correctly with the ball and ramp paths.
  10. Store unused tools and cleaners in a safe, cool area. Document any recurring issues for future maintenance or a potential rebuild.
  11. If any motion remains gritty after cleaning, consider replacing worn bushings or springs, or using a dedicated rebuild kit to restore precision.
  12. Return the playfield, secure the glass, and resume normal play. Periodic checks every few months can prevent performance dips during events or tournaments.

Troubleshooting

Symptom Likely Cause Fix Prevention
Flipper sticks or drags during travel Dirty pivot or worn linkage Clean with isopropyl alcohol and re-lubricate; replace worn components Regular light cleaning and inspection
Weak or inconsistent flipper action Coil or wiring issue, or spring tension imbalance Check coil resistance, inspect wiring, adjust or replace springs Periodic electrical checks and proper recoil measurement
Flipper returns slowly to rest Excess lubricant or sticky pivot Wipe clean and apply minimal lubricant per kit instructions Avoid over-lubrication; use electronics-grade products
Unresponsive flipper after rebuild Misaligned linkage or mounting screws Recheck alignment, reseat screws, test with power off Follow rebuild kit instructions precisely

Common Mistakes

  • Using regular household cleaners that can corrode plastics or electronics
  • Over-lubricating moving parts, which attracts dust and causes buildup
  • Forcing components during disassembly or reassembly
  • Neglecting safety steps or failing to unplug the machine

Tips For Best Results

  • Use a dedicated electronics cleaning spray and lint-free microfiber cloths for best results.
  • Work in a clean area, minimizing dust that can settle on treated surfaces.
  • Document screw locations and part orientation to simplify reassembly.
  • Keep spare o-rings, springs, and small linkage parts on hand from a rebuild kit.

Call A Professional

Signs that require professional help include persistent electrical faults, unusual noises, signs of overheating, or if a rebuild kit installation feels beyond your DIY comfort level. If a flipper shows electrical arcing, damaged coil insulation, or cracked housings, contact a certified arcade technician or the machine’s manufacturer support.

FAQ

How often should I clean flippers?

Clean and inspect every 3–6 months, or after heavy use or tournaments, to maintain optimal action.

Can I use isopropyl alcohol on all flipper parts?

Use it on metal contact surfaces and pivots; avoid soaking plastic bushings or rubber seals unless the manufacturer specifies compatibility.

What if the flipper still feels sticky after cleaning?

Inspect for worn bushings, bent pivots, or damaged springs; a rebuild kit may be required for full restoration.

Is a rebuild kit worth it for older machines?

Yes, rebuild kits restore original feel and reliability, particularly on high-traffic machines or competitive setups.

Are there any safety concerns with cleaning coils?

Coils carry stored energy; do not power a unit with the playfield or components exposed, and handle with care following kit instructions.

Buying Guide

When selecting tools and supplies for cleaning and rebuilding pinball flippers, consider size, noise level, energy efficiency, controls, and placement of the kit within your workshop. Look for a pinball machine flipper cleaning kit that includes a dedicated rebuild kit, precision screwdrivers, and high-quality microfiber cloths. Compare minor differences in lubrication recommendations and confirm compatibility with your flipper models. A compact toolkit that fits a standard electronics workbench is ideal for frequent maintenance, while a larger kit is preferable for owners who perform regular overhauls. For quiet operation and precise control, prioritize components designed for electronics-grade cleaning and corrosion resistance. Ensure safe storage for small parts and solvents, and choose products with clear instructions to minimize missteps.