What You'll Learn
Aussie Conditions
Look, we all love a day out on the water, but the trailer is usually the last thing anyone thinks about until it's seizing up on the side of the Bruce Highway. I've spent 15 years seeing blokes spend $80k on a boat only to let a $5k trailer fall apart because they couldn't be bothered with a bit of grease and a proper wash. This guide is for every boatie who wants to avoid a nightmare at the boat ramp.
The Reality of Boat Trailers in Australia
The Gear You'll Need
What You'll Need
While you're here...
Getting Ready
Find a Flat Spot
Park the trailer on a level concrete pad. Doing this on a grassy slope is asking for trouble. Chuck the chocks behind the wheels.
Visual Inspection
Walk around the whole rig. Look for rust bubbles, cracked welds, or frayed winch cables. If the winch strap looks hairy, it's done. Replace it.
The Freshwater Flush
Give the whole thing a massive blast with fresh water. If you've got a box-section trailer, stick the hose right inside the holes to wash out any trapped salt or red dust from your last trip out west.
The Main Job: Step-by-Step
Check the Bearings
Jack up one side and spin the wheel. It should be silent. If you hear a grumble or a crunch, your bearings are shot. To be honest, I reckon you should just replace them every two years regardless of how they sound.
Grease the Hubs
If you've got Bearing Buddies, pump in some marine grease until the piston just starts to move. Don't overdo it or you'll blow the rear seal and get grease all over your brakes. I once saw a mate do this and he couldn't stop the trailer for the life of him.
Inspect the Tyres
Check the pressures, but more importantly, check for 'spider webbing' or cracking in the sidewalls. The Aussie sun destroys rubber. Even if they have heaps of tread, if they're over 5-6 years old, they're ticking time bombs.
Tighten the U-Bolts
Grab your socket set and check the bolts holding the axle to the springs. They vibrate loose over time, especially on corrugated roads. Give 'em a good nip up.
Service the Leaf Springs
This is where most people fail. Clean the springs with a wire brush, then soak them in Lanolin spray. Some people swear by old engine oil, but that's messy and bad for the environment when you launch. Lanolin sticks like glue and loves salt.
Check the Lights
Plug it into the car and check everything. If you've still got old globes, do yourself a favour and swap to sealed LED units. I've wasted too many arvos fiddling with corroded bulb sockets.
Brake Check
If you've got mechanical override brakes, grease the sliding hitch. If they're hydraulic, check the fluid level in the master cylinder. Look for leaks around the calipers or drums.
Winch and Jockey Wheel
Unwind the winch fully and check the strap. Wind it back on neatly. Grease the internal gears of the winch and the pivot point of the jockey wheel.
The Sniff Test
Sounds weird, but smell your hubs after a drive. If they smell burnt, something is seizing. Better to find out now than on the side of the highway.
Rollers and Skids
Check that all your rollers actually roll. If they're flat-spotted or seized, they'll mar your hull. Give the pins a quick squirt of silicone spray.
Watch Out
The Lanolin Secret
Watch Out
Long-Term Protection
Common Trailer Questions
How often should I grease my bearings?
My trailer has some surface rust, is it cooked?
Can I use WD-40 on my leaf springs?
Are LED lights really worth the upgrade?
What's the best way to clean off red dust?
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