If your treadmill is starting to squeak or sound rough, you probably need to learn where to lubricate treadmill belts. Proper lubrication is the easiest way to keep your machine running smoothly for years. This guide will show you exactly where to apply lubricant and how to do it right.
Where To Lubricate Treadmill
The primary place you need to lubricate is between the walking belt and the deck. The belt glides over this deck, and friction here is what causes wear and noise. You should never lubricate the top of the belt or the side rails—this won’t help and could make a mess.
Tools and Lubricant You’ll Need
Gathering the right supplies first makes the job quick. Using the wrong type of lubricant can damage your treadmill.
- 100% Silicone Lubricant: This is crucial. Never use WD-40 or oil-based sprays. They can ruin the belt and deck. Most treadmill manufacturers sell their own brand, or you can by a universal treadmill silicone lubricant.
- A Clean Cloth: For wiping away any dirt or old lubricant.
- A Screwdriver or Allen Wrench: Usually needed to loosen the belt tension for access.
- A Lint-Free Rag: For applying the lubricant if your bottle doesn’t have a nozzle.
Step-by-Step Lubrication Guide
Follow these steps carefully to lubricate your treadmill safely and effectively. Always unplug the machine from the wall before you start.
Step 1: Check If Lubrication Is Needed
First, see if your treadmill actually needs lube. Do the “lift and pull” test. Lift the edge of the belt and try to slide your hand between the belt and the deck. If there’s little to no gap and you feel a lot of resistance, it needs lubrication. Some newer treadmills have a indicator light on the console.
Step 2: Access the Lubrication Area
You need to get under the belt. Loosen the tension on the rear roller by turning the adjustment bolts on the back end of the treadmill. Turn each bolt a quarter-turn counter-clockwise. This creates a small gap to work with. Consult your manual for the exact location of these bolts, as they can vary.
Step 3: Clean the Area
Lift the belt and wipe the deck clean with a dry cloth. Remove any dust, debris, or old, gummy lubricant. A clean surface ensures the new lube works properly.
Step 4: Apply the Silicone Lubricant
This is the key part. Apply a thin, even line of silicone lubricant down the center of the deck. You don’t need a lot—usually about 3-4 lines running from near the front roller to near the back roller. Avoid getting to close to the edges.
Step 5: Spread the Lubricant
Gently lower the belt. Now, plug in the treadmill and turn it on. Set it to a very slow speed, like 1 or 2 mph. Let the belt run for 2-3 minutes. This allows the lubricant to spread evenly underneath the entire belt surface.
Step 6: Re-Tension the Belt
Unplug the treadmill again. Check the belt alignment and tension. The belt should be centered and should not slip when you try to stop it with your foot while running slowly. Tighten the adjustment bolts you loosened earlier, making sure to turn them evenly to keep the belt straight.
Common Mistakes to Avoid
Avoiding these errors will save you time and protect your equipment.
- Over-Lubricating: More is not better. Excess lube can cause the belt to slip and attract more dirt.
- Using the Wrong Product: Repeating for emphasis: only use 100% silicone lubricant made for treadmills.
- Lubricating the Top: Applying lube to the walking surface is dangerous and won’t solve the friction problem.
- Ignoring the Manual: Your owner’s manual has model-specific advice. It’s worth a quick look to see if there’s any special instructions.
How Often Should You Lubricate?
The frequency depends on how much you use your treadmill. A good general rule is to check it every three months. If you use it heavily (more than 10 hours a week), you might need to lubricate it every 1-2 months. If it’s in a dusty environment, check it more often to.
Signs Your Treadmill Needs Immediate Attention
Sometimes lubrication isn’t the only issue. Listen and watch for these signs:
- A persistent squeaking or grinding noise from the belt area.
- The belt hesitating or slipping during use.
- A burning smell, which indicates excessive friction.
- You notice the motor straining more than usual.
If lubrication doesn’t fix these problems, the belt may be worn out or the deck might need to be flipped or replaced. It’s a good idea to call a technician if your unsure.
FAQ Section
Here are quick answers to common questions about treadmill lubrication.
Can I use silicone spray from the hardware store?
Maybe, but you must check the label. It must say “100% silicone” with no petroleum additives or Teflon. Treadmill-specific lube is usually the safest bet and isn’t very expensive.
How do I know if my treadmill is self-lubricating?
Most self-lubricating treadmills have a special deck (often labeled “lube-free” or “never lube”). Check your manual or the manufacturer’s website. If you’re not sure, it’s better to assume it needs lubrication and check.
What if my belt still squeaks after lubrication?
The noise might be coming from the roller bearings or the motor drive belt, not the deck. These parts require different maintenance and sometimes professional service. Also, ensure you belt tension is correct after lubing.
Is it okay to use a wax-based lubricant?
Some manufacturers recommend a paraffin wax stick. This is less common but acceptable if your manual specifies it. Never use a candle or other wax—only the product recommended for your machine.
Do I need to clean the old lubricant off every time?
It’s a good practice to wipe the deck clean before applying new lube. This prevents buildup, which can become gummy and ineffective over time. A quick wipe is usually sufficient.
Regular maintenance, including knowing where to lubricate treadmill, is the best way to extend it’s life. A few minutes of care every few months prevents costly repairs and keeps your workouts quiet and smooth. Always refer to your specific owner’s manual for the most accurate guidance for your model.