Phone:
(701)814-6992
Physical address:
6296 Donnelly Plaza
Ratkeville, Bahamas.
Pontoon Trailer Care & Setup
A pontoon trailer has one very important job.
Support a large boat safely while moving it down the highway.
That sounds simple until you consider the size, width and weight of a pontoon—and the fact that the boat has to be supported correctly while traveling over bumps, railroad crossings, boat ramps and everything else between your driveway and the water.
Good pontoon trailer maintenance involves more than checking the tires.
Bunks need to support the boat properly. The pontoon needs to sit correctly on the trailer. Bearings, tires, couplers, safety chains, winches and lights all need attention.
And because the trailer regularly gets backed into water, many of those components operate in an environment designed specifically to make maintenance important.
The trailer isn’t just how you get the pontoon to the lake.
It’s part of the boat-owning system.
Pontoon Trailer Care & Setup Menu
Quick Inspection | Bunks & Support | Boat Position | Tires & Wheels | Bearings & Hubs | Coupler & Safety Chains | Winch & Bow Stop | Lights & Wiring | Loading & Launching | Storage & Repairs
Quick Pontoon Trailer Inspection
Before towing, take a few minutes to walk around the trailer.
Check:
- Tires
- Tire pressure
- Wheels
- Lug nuts
- Bearings and hubs
- Bunks
- Bunk brackets
- Winch strap
- Bow stop
- Coupler
- Safety chains
- Trailer jack
- Lights
- Wiring
- Tie-downs
- License plate
Then look at the boat itself.
Confirm that the pontoon is:
- Centered on the trailer
- Properly supported
- Positioned against the bow stop as designed
- Secured at the bow
- Secured at the stern
- Clear of trailer components that shouldn’t contact the tubes
Walk around both sides.
Don’t assume that because the driver’s side looks right, the passenger side does too.
Look Under the Boat
Pontoon trailers have plenty of components hidden beneath a very large boat.
Look underneath when it’s safe to do so.
Watch for:
- Shifted bunks
- Loose brackets
- Bent components
- Damaged wiring
- Rust or corrosion
- Missing hardware
- Components contacting the pontoon tubes
- Anything hanging unusually low
A two-minute inspection in the driveway is much more enjoyable than discovering the problem beside the highway.
Pontoon Trailer Bunks & Tube Support
Pontoon trailers typically use bunks or other manufacturer-designed supports to carry the boat.
Those supports need to match the pontoon’s structure and trailer design.
Inspect the Bunks
Check for:
- Rot or deterioration
- Cracked lumber
- Loose carpeting or covering
- Exposed fasteners
- Loose brackets
- Bent brackets
- Missing hardware
- Bunks that have shifted
- Uneven wear
Run your hand carefully over accessible bunk surfaces and look for anything that could damage the aluminum.
A fastener that has worked its way through worn bunk carpet can turn every launch and retrieval into a new scratch—or worse.
Support Needs to Be Intentional
A pontoon shouldn’t simply be resting wherever it happened to land on the trailer.
The support system should match the trailer and boat design.
Improper support can contribute to:
- Tube damage
- Poor loading
- Excessive movement
- Uneven weight distribution
- Contact with brackets or other trailer components
If you’re setting up a different pontoon on an existing trailer, don’t assume the old bunk locations are correct just because the new boat fits between the fenders.
Fits on the trailer and properly supported by the trailer are two different things.
Check Both Sides
Compare the bunk positions from side to side.
Look for symmetry where the design calls for it.
If one bunk has shifted inward, outward, forward or backward, investigate before continuing to tow the boat.
Carpet Holds Water
Carpeted bunks spend plenty of time wet.
Inspect the underlying bunk material periodically rather than judging condition solely by the carpet.
Nice-looking carpet can still be covering deteriorated wood.
How the Pontoon Sits on the Trailer
Once the support system is in good condition, look at the boat’s overall position.
Ask:
- Is it centered?
- Is it level side to side?
- Is it sitting evenly on the bunks?
- Is it properly positioned front to rear?
- Is the bow correctly positioned at the winch stand?
- Are the stern tie-down locations usable?
- Are the tubes clear of unintended contact points?
Watch for Unusual Contact
Look closely around:
- Pontoon tubes
- Nose cones
- Lifting strakes
- Brackets
- Crossmembers
- Motor pod
- Trailer frame
- Guides
- Bunk brackets
Trailer components shouldn’t repeatedly rub or strike the aluminum.
If you find a suspicious wear mark on a tube, look directly beneath it.
The trailer may be leaving its signature.
Position Affects Towing
The front-to-rear position of the boat affects how weight is carried by the trailer and tow vehicle.
Moving a heavy pontoon significantly forward or backward isn’t something to do casually.
Proper tongue weight, axle loading and trailer capacity matter.
When changing trailer setup, use the trailer, boat and tow-vehicle manufacturers’ specifications and appropriate weight measurements rather than guessing from appearance.
Don’t Adjust Around Damage
If the pontoon suddenly no longer sits correctly, determine why.
A shifted bunk is one possibility.
So are:
- Bent brackets
- Damaged trailer structure
- Impact damage
- A changed winch stand
- Suspension problems
- Boat damage
Find the cause before adjusting everything else to compensate for it.
Pontoon Trailer Tires & Wheels
Pontoon trailers can sit for long periods and then suddenly be expected to carry a substantial load at highway speed.
That makes tire condition especially important.
Inspect Trailer Tires For:
- Proper inflation
- Cracking
- Dry rot
- Bulges
- Cuts
- Uneven wear
- Embedded objects
- Damaged valve stems
- Adequate tread
- Age
Don’t judge trailer tires by tread depth alone.
A lightly used trailer may have plenty of tread on tires that have aged significantly.
Check Tire Pressure Cold
Inflate trailer tires according to the appropriate tire and trailer specifications.
Check pressure before towing while the tires are cold.
Underinflation can contribute to heat buildup and tire failure.
Know the Tire Capacity
Replacement tires need adequate load capacity for the trailer and its load.
A tire that physically fits the wheel isn’t automatically suitable.
Consider:
- Tire size
- Load range
- Load capacity
- Speed rating where applicable
Inspect the Wheels
Look for:
- Damage
- Cracks
- Severe corrosion
- Loose or missing lug nuts
- Elongated lug holes
Lug nuts should be tightened according to the wheel or trailer manufacturer’s specifications.
Check them after wheel service and periodically during normal use.
Carry a Spare
A spare tire isn’t particularly useful if:
- It’s flat
- It’s severely aged
- It doesn’t fit
- You don’t have the tools to install it
Inspect the spare along with the tires touching the road.
Bearings & Hubs
Wheel bearings have a difficult life on a boat trailer.
They carry the trailer load, rotate at highway speed and are repeatedly introduced to water.
Watch for Warning Signs
Pay attention to:
- Unusual wheel noise
- Roughness
- Excessive play
- Grease leakage
- Damaged seals
- Unusual hub temperature
- Water-contaminated grease
Bearing maintenance requirements vary by hub design.
Follow the trailer or hub manufacturer’s service recommendations.
Check Hub Temperature
During a trip, a quick stop provides an opportunity to notice unusual heat.
Compare hubs carefully.
One hub that is significantly hotter than the others deserves investigation.
Use caution—an overheating hub can be hot enough to cause injury.
More Grease Isn’t Always the Answer
Grease needs to be present where required.
That doesn’t mean forcing unlimited grease into every hub is proper maintenance.
Overfilling some systems can damage seals or create other problems.
Know which hub system you have and service it accordingly.
Water Intrusion Matters
A failed seal can allow water into the bearing assembly.
Contaminated grease may lose its ability to properly protect the bearings.
If you see evidence of water contamination, don’t simply add grease and hope for a personality change.
Investigate the hub.
Coupler, Safety Chains & Trailer Jack
The coupler connects the entire trailer to the tow vehicle.
It’s worth more than a casual glance.
Inspect the Coupler
Check:
- Coupler condition
- Latch operation
- Correct ball size
- Adjustment where applicable
- Mounting hardware
- Corrosion
- Damage
The coupler should fully seat and securely latch onto the correct hitch ball.
Safety Chains
Inspect:
- Chain condition
- Hooks
- Attachment points
- Hardware
Chains should be connected appropriately to the tow vehicle and arranged according to applicable towing requirements.
They shouldn’t be dragging down the road creating sparks.
Trailer Jack
Check that the jack:
- Raises and lowers properly
- Locks securely
- Has a functioning wheel or foot
- Remains securely mounted
Lubricate and maintain it according to the manufacturer’s recommendations.
The jack doesn’t get much attention until it refuses to work while the tongue is carrying several hundred pounds.
Winch, Strap & Bow Stop
The winch helps load and position the pontoon.
It isn’t the only thing that should be securing the boat for highway travel.
Inspect the Winch
Check:
- Winch operation
- Mounting hardware
- Gear condition
- Handle
- Strap or cable
- Hook
- Safety latch
Inspect the Winch Strap
Replace a strap showing:
- Significant fraying
- Cuts
- UV deterioration
- Damaged stitching
- A damaged hook
A strap that looks questionable in the driveway isn’t going to become stronger at the ramp.
Bow Stop & Winch Stand
Check:
- Bow stop condition
- Winch-stand position
- Mounting bolts
- Structural condition
- Alignment
The bow should reach the intended stopping position without the winch stand or hardware damaging the boat.
If the boat suddenly stops loading where it used to, investigate what changed.
Secure the Stern
Use appropriate stern tie-downs where the trailer and boat are designed for them.
Don’t rely solely on the winch strap to keep a large pontoon attached to its trailer.
Trailer Lights & Wiring
Pontoon trailers are wide, and functioning lights help other drivers understand exactly how much trailer you’re bringing with you.
Before towing, verify operation of:
- Tail lights
- Brake lights
- Turn signals
- Side-marker lights
- Clearance lights where equipped
- License-plate light where required
Inspect the Wiring
Look for:
- Hanging wires
- Damaged insulation
- Corroded connectors
- Loose grounds
- Failed splices
- Wires rubbing against metal
- Damaged plugs
Trailer wiring lives underneath a vehicle that gets repeatedly submerged.
Give it some sympathy.
And regular inspection.
Intermittent Lights
A light that works only after kicking the trailer is not repaired.
Intermittent operation commonly points toward:
- Loose connections
- Poor grounds
- Corrosion
- Damaged wiring
- Failing lamps or fixtures
Find the cause before heading onto the road.
Loading & Launching a Pontoon
Pontoon loading can require more attention than loading a smaller conventional fishing boat.
Wind, current and the boat’s large profile can all affect alignment.
Before Backing Down the Ramp
Prepare the boat away from the active ramp when possible.
Take care of things such as:
- Removing travel tie-downs as appropriate
- Installing the drain plug where applicable to the boat’s systems
- Loading gear
- Preparing dock lines
- Checking batteries
- Checking the outboard
- Confirming required safety equipment
The ramp is for launching.
It’s not the ideal place to begin reorganizing the tackle box.
Back the Trailer to the Appropriate Depth
Ramp angle, trailer design and water depth all affect the correct position.
Too shallow and the boat may be unnecessarily difficult to load.
Too deep and the bunks or guides may not properly center it.
Learn the position that works for your particular boat and trailer.
Use the Trailer to Help Center the Boat
Properly adjusted bunks and guides should help position the pontoon.
Approach slowly and maintain control.
Wind can push a pontoon’s large side area surprisingly quickly.
If the boat repeatedly loads crooked, don’t automatically blame the driver.
Inspect:
- Trailer depth
- Bunk alignment
- Guides
- Ramp conditions
- Trailer setup
Check the Boat After Loading
Before leaving the ramp area, verify:
- The pontoon is centered
- It is fully positioned
- The bow is secured
- Stern tie-downs are attached
- The motor is positioned appropriately for towing
- No tube is resting against an unintended trailer component
A pontoon can look fine from the tow vehicle while sitting incorrectly several feet behind you.
Walk around it.
↑ Back to Pontoon Trailer Care & Setup Menu
Trailer Brakes
Larger pontoon trailers may be equipped with brakes, and towing laws may require them depending on trailer weight and jurisdiction.
If your trailer has brakes, include them in routine maintenance.
Inspect and maintain the braking system according to the trailer and brake manufacturer’s requirements.
Depending on the system, this may include:
- Brake components
- Hydraulic lines
- Flexible hoses
- Actuator
- Brake fluid
- Electrical connections
- Breakaway equipment
- Parking components where equipped
Don’t Ignore Changes in Braking
Investigate:
- Pulling
- Dragging
- Unusual noises
- Overheated wheels
- Fluid leakage
- Poor braking performance
- Brake components that don’t release properly
Trailer brakes operate in a difficult environment, especially when routinely submerged.
They deserve inspection rather than the assumption that they’re working because they worked last season.
↑ Back to Pontoon Trailer Care & Setup Menu
Saltwater Trailer Care
Saltwater accelerates corrosion.
After saltwater use, rinse appropriate trailer components thoroughly with fresh water.
Pay attention to:
- Frame
- Crossmembers
- Axles
- Suspension
- Bunk brackets
- Hardware
- Wheels
- Hubs
- Brake components
- Coupler
- Jack
Rinsing doesn’t replace maintenance.
It helps reduce the amount of salt left behind to work on the trailer while you’re doing something else.
Inspect saltwater-used trailers more frequently for corrosion and deteriorated components.
Trailer Storage
A trailer spends far more time parked than it does traveling.
Where and how it’s stored affects its condition.
During Storage
Consider:
- Tire exposure to sunlight
- Ground conditions
- Standing water
- Drainage
- Trailer angle
- Coupler security
- Wheel security
- Corrosion
- Pest activity around wiring
If the trailer will sit for an extended period, follow the trailer, tire and component manufacturers’ storage recommendations.
Don’t Park and Forget
A trailer that was road-ready six months ago isn’t automatically road-ready today.
Before returning a stored trailer to service, inspect it again.
Tires age.
Corrosion continues.
Batteries in breakaway systems can discharge.
Animals occasionally develop opinions about wiring.
Time counts even when the odometer doesn’t move.
Older Pontoon Trailers Deserve a Complete Evaluation
When buying or restoring an older pontoon, don’t evaluate the trailer as an afterthought.
A trailer may have:
- Been modified for a different boat
- Incorrectly positioned bunks
- A moved winch stand
- Mismatched tires
- Old bearings
- Questionable wiring
- Structural corrosion
- Damaged suspension
- Previous repairs
The fact that the pontoon has been sitting on the trailer for ten years doesn’t prove that it has been sitting on it correctly for ten years.
Before a Tin Can Pontoon Build
For a pontoon restoration, evaluate the trailer before the finished boat goes back on it.
That is the ideal time to:
- Inspect the frame
- Inspect welds
- Check axles and suspension
- Service bearings
- Evaluate tires
- Inspect or replace bunks
- Correct bunk positioning
- Repair wiring
- Service brakes where equipped
- Inspect the winch and coupler
It’s considerably easier to rebuild a trailer when the boat isn’t sitting on top of it.
And it makes little sense to spend months rebuilding a pontoon only to put the finished boat on a trailer you never really inspected.
↑ Back to Pontoon Trailer Care & Setup Menu
Know Your Towing Setup
The trailer is only one part of the towing system.
The complete setup includes:
- Pontoon
- Trailer
- Tow vehicle
- Hitch
- Hitch ball
- Electrical connection
- Braking equipment
- Cargo
Know the ratings and limitations of each.
Pay attention to:
- Trailer GVWR
- Actual loaded trailer weight
- Tow-vehicle capacity
- Hitch rating
- Tire capacity
- Axle capacity
- Tongue weight
- Cargo carried aboard the pontoon
The lowest-rated component can limit the entire system.
Don’t estimate loaded weight based solely on the pontoon manufacturer’s published dry weight.
Fuel, batteries, outboard, trolling motor, equipment, accessories, coolers, anchors and fishing gear all add weight.
The fish you’re planning to catch probably aren’t the problem.
Everything you brought to catch them might be.
The Trailer Is Part of the Boat
A beautiful pontoon on a neglected trailer isn’t a finished package.
The trailer needs to safely support the boat at rest, position it correctly during loading and carry it down the highway without becoming the most exciting part of the fishing trip.
Inspect the bunks.
Check the tires.
Maintain the bearings.
Watch the wiring.
Secure the boat.
And pay attention to how the pontoon actually sits on the trailer.
The trailer doesn’t need to be pretty.
It needs to do its job every time you hook it to the truck.
Pontoon Tube Care & Inspection →
Pontoon Deck & Structure Care →
Tin Can Boat Works
Small Boats. Serious Fishing.