RC Maintenance Tips from 30 Years Behind the Hobby Shop Counter
I've been working in hobby shops for 30 years. I've been doing RC since I was five — I'm 46 now. In that time, I've seen every kind of breakdown, meltdown, and "how did this even happen" moment you can imagine. And almost all of them could've been prevented with a little basic maintenance.
This isn't a complicated science. It's just taking care of your stuff so your stuff takes care of you. Here's what I tell every single person who buys an RC from my shop.
After Every Run — The 5-Minute Habit That Saves You Hundreds
This is the one nobody wants to do and everybody needs to do. When you're done driving, take five minutes before you put it away:
Blow it out. Use a can of compressed air or a small blower and get the dirt, sand, and debris out of the chassis. Dirt gets into bearings, gears, and electronics. It's the silent killer of RC vehicles. Five seconds of air after every run prevents problems that cost $50+ to fix later.
Check your wheels and tires. Give each wheel a spin. Feel for grinding or resistance — that means a bearing is going bad. Check the tires for tears, chunks missing, or delamination from the rims. Catching it now is a $5 fix. Ignoring it leads to a wheel flying off mid-run and the truck cartwheeling into a curb.
Look at your suspension. Push down on each corner. It should compress smoothly and return evenly. If one side feels mushy or leaks oil, you've got a shock that needs attention. Don't drive on blown shocks — it puts stress on everything else.
"I can tell in 10 seconds if someone takes care of their truck or not. The guys who clean it after every run? Their stuff lasts for years. The guys who throw it in the garage dirty? They're back in a month buying parts." — Matt, RC Hobby Pros
Battery Care — The Most Important Thing Most People Ignore
Your battery is the heartbeat of your RC. Treat it right and it'll give you years of power. Treat it wrong and you're buying a new one — or worse.
NiMH batteries (what comes with most RTR trucks like the GRANITE MEGA): These are pretty forgiving. Charge them fully before each run, and don't leave them completely dead for long periods. Store them with some charge on them. That's really it.
LiPo batteries (what serious hobbyists use): These need more respect. Never discharge them below 3.2V per cell — your ESC's low-voltage cutoff should handle this, but pay attention. Always use a balance charger. Never leave a LiPo charging unattended. And if a LiPo is puffy, swollen, or damaged — stop using it immediately. Bring it to us and we'll dispose of it safely.
Storage charging is a big deal with LiPo. If you're not going to run for a week or more, put your LiPo on storage charge (3.8V per cell). This dramatically extends the life of the pack. Most good chargers have a storage mode — use it.
Bearings — The $3 Part That Saves Your $300 Truck
Bearings are everywhere in your RC — wheels, diffs, transmission, motor mount. They spin thousands of times per run and they wear out. Here's the thing: a bad bearing doesn't just make noise. It creates friction, which creates heat, which wears out gears, which leads to a stripped diff — and now you're looking at a $40-$60 repair instead of a $3 bearing swap.
How to check: Pull a wheel off, spin the bearing with your finger. It should spin freely and smoothly. If it's gritty, crunchy, or resists — replace it. They're cheap and easy to swap.
Pro tip: Keep a spare bearing set for your truck. When one goes, you can swap it in 5 minutes instead of waiting for a shipment. We stock bearing kits for all the major platforms at the shop.
Screws and Bolts — They Come Loose. Always.
Vibration is part of RC. Your truck is bouncing, landing jumps, hitting bumps — and every single one of those impacts is working to shake your screws loose. This is completely normal and completely fixable.
Every few runs, do a screw check. Just go around the truck with the right hex driver and snug everything up. Pay special attention to wheel nuts, shock tower bolts, and servo screws. A loose servo screw means you lose steering. A loose wheel nut means you lose a wheel. Neither is fun.
Thread locker is your best friend. A tiny drop of blue (medium) thread locker on critical bolts — shock towers, motor mount, bumper screws — keeps them from backing out. Don't use red thread locker unless you never want to remove it again. Blue is the move.
Differentials and Gears — The Stuff Inside Matters
Your diffs are doing a ton of work. They're transferring power from the motor to the wheels and they're packed with grease that eventually breaks down. If your truck starts making a whining noise from the diffs, or if you notice one wheel spinning way faster than the other, it's time to open them up.
Diff maintenance is one of those things that sounds intimidating but it's really not. Pop it open, clean out the old grease, inspect the gears for wear, re-grease it, and button it back up. There are great tutorials online, and we're always happy to walk you through it at the shop.
With ARRMA trucks specifically, the diffs are really well-built. You can usually go quite a while before they need attention. But if you're bashing hard — big jumps, full throttle on pavement — check them more often.
Electronics — Keep Them Dry (Even If They're "Waterproof")
Most modern RTR trucks — ARRMA, Axial, Losi — come with waterproof electronics. And they do work. You can drive through puddles, wet grass, even rain. But here's what "waterproof" doesn't mean: it doesn't mean "leave it soaking wet in the garage overnight."
After wet runs, dry your truck out. Pop the body off, blow it out with air, and let it air dry before you put it away. Water sitting on connectors causes corrosion. Corrosion causes resistance. Resistance causes heat. Heat kills electronics. It's a slow chain of events that's completely preventable.
If you're running at the beach (and you should — it's incredible), sand and salt water are harder on electronics than fresh water. Give it an extra-thorough cleaning afterward. A quick rinse with fresh water followed by a dry-out goes a long way.
When to Bring It to the Shop
Look, I love DIY. The whole hobby is about getting your hands dirty and learning. But there are times when bringing it to a pro saves you time, money, and frustration:
Transmission rebuild — if gears are stripped or the slipper clutch needs adjustment and you've never done it before, let us show you the first time. Then you'll know for next time.
Electrical gremlins — if your truck is doing weird things (random shutoffs, stuttering, one wheel not driving), it could be a wiring issue, a bad ESC, or a receiver problem. Diagnosing electrical stuff takes experience.
Setup and tuning — if you want your truck dialed in for a specific surface or driving style, we can help you set up your shocks, adjust camber, tweak gear ratios, and get it feeling exactly how you want it.
That's what hobby shops are for. We're not just a store — we're a resource. Come in, bring your truck, ask questions. We love this stuff as much as you do.
"30 years in hobby shops and the one thing I know for sure: the people who take care of their trucks are the people who stay in the hobby the longest. It's not about spending more money — it's about respecting what you've got. Five minutes of maintenance beats five hours of repair every single time." — Matt, RC Hobby Pros
Need parts, advice, or a helping hand? Come see us at RC Hobby Pros in Katy, TX — or shop online. We've been helping RC enthusiasts for decades, and we're not stopping anytime soon.
