Home
Products
Service
Parts
Downloads
Company
Warranty
Contact
Registration
What's New
Links
Dealers
Dealer Forms
Find Us

Trailer Maintenance Tips

If you are the Do-It-Yourself type of trailer owner, these tips will help you learn to repair and maintain your trailer to keep it in top notch safety condition.

NOTE: This guide outlines basic maintenance procedures. These procedures should only be completed by someone experienced in mechanical maintenance and repair. Trailer owners are strongly encouraged to use their dealer for any repair - especially with the components that effect safety (such as brakes and bearings), we urge trailer owners to have that maintenance completed by their dealer.

Top Ten Tips | Maintenance Schedule | Before Towing | General Maintenance | Storing Your Trailer | Trouble Shooting

BEFORE YOU TOW YOUR BOAT

 

CAUTION: Failure to follow proper maintenance procedures or use of the trailer for purposes other than originally intended will void your warranty. 

General Checklist
Never tow before you check the following:

1. Coupler securely engages your hitch. The coupler and hitch ball must be rated for the same size. The size should be imprinted on both the ball and the hitch.

2. Safety Chains are safely secured to trailer and tow vehicle in a Chris-cross fashion under the tongue.

3. Jack is fully cranked up (and parallel to tongue if swivel jack).

4. All fasteners / bolts are properly tightened. Pay particular attention to the lug nuts (tightened to 85 ft-lbs).

5. Boat is securely tied down with tie-down straps. Your winch strap is not a tie-down strap. A winch controls your boat in a horizontal direction. Tie-downs control your boat in the vertical direction. You must have bow-eye and transom tie down straps securely attached whenever the trailer is in use.

6. Tires are properly inflated- read the tire sidewall to determine the correct tire pressure required. This rating will be different than your tow vehicle. Also check for tire wear, cracks, bubbles or foreign objects imbedded in the tire. Bias ply trailers are not designed for speeds in excess of 65 mph.

7. Brake lights and other trailer lights are working.

8. If the trailer is equipped with brakes, make sure they are functioning by lightly testing before getting on a major road.

9. If the trailer is equipped with brakes, connect the breakaway cable (located on top of actuator) to the tow vehicle.


CAUTION: Do not exceed the maximum weight rating on your trailer. 
Exceeding the maximum rating voids the manufacturer’s warranty and may lead to premature failure of the trailer causing damage to the boat and creating an unsafe towing condition. 


Coupler
There are generally two types of couplers. One, the lever type is currently being used in production. It has a lever on top of the coupler that engages the pawl & secures the trailer to the hitch ball. The second type of coupler is a hand-wheel type. On the top of this coupler is a small hand-wheel that is turned to engage/disengage the trailer from the hitch ball.

Visually inspect hitch, ball and coupler for signs of wear or damage. Replace any parts that are worn or damaged before towing. 
Be sure the coupler is secured to the hitch ball and the lock lever or hand wheel is down and tight and locked. Clamp hand wheel couplers hand tight only. When properly engaged, the tongue jack will not be able to lift the trailer off of the hitch ball. 
Verify that the ball is properly inside the coupler and the coupler is not sitting on top of the ball.
 

CAUTION: Use only the ball diameter indicated on your coupler - any other ball diameter will create an extremely dangerous condition that may result in separation from the coupler or ball failure. 

Secure the safety chains. Criss-cross the safety chains under the tongue and then securely attach the S-hooks to the tow vehicle. 
Recheck tightness after initial 50 miles.

NOTE: When attached, your boat and tow vehicle should be parallel to the road surface. It you have questions concerning the load, see your dealer. 


Tongue Jack

Before each use, check jack for grease. Grease as necessary with wheel bearing grease. 
Ensure that the jack is completely raised before towing. If your trailer is equipped with a swivel jack, make sure that the swivel jack is in the folded position - jack parallel to the trailer tongue.
CAUTION: When placing a swivel jack in the down position (positioned to support the weight of the tongue) ensure the swivel pin is engaged BEFORE adding weight to the jack or removing the trailer from the tow vehicle. Not verifying that the swivel jack pin is engaged could cause the jack to collapse under the weight of the tongue.



Winch Assembly

Visually check the strap, rope, or cable and hook before each use. Never use any strap, rope or cable that is worn, damaged, frayed or kinked. Replace with parts from your authorized trailer parts dealer. 
Make sure the winch strap is securely attached to the boat's bow eye. NOTE. The winch/winch strap is not designed to be the only line securing a boat to a trailer while towing. Tie-down straps (bow eye and transom) must be used to properly secure your boat while towing.


CAUTION: Failure to properly secure your boat with tie down straps can cause damage to your boat trailer, boat and boat contents. In addition, an improperly secured boat can create a dangerous road condition. In many states, towing a boat without tie down straps is illegal. See your dealer to get the proper tie down straps and learn their correct use.



Wheels and Hubs

Lug Nuts


Check for loose or missing lug nuts & tighten all lug nuts to 85 foot-pounds. Replace any damaged or missing lug nuts. Use the correct size wrench when tightening lug nuts. 
When on a trip, visually check the wheel hubs each time you stop.

CAUTION: The following are signs of bearing failure or other wheel problems:

a) Bearing grease splattered on the rim. This could be a sign of rear seal failure, bearing lock-up or loss of grease in the bearing.

b) Smoke from a wheel. This could indicate a dragging tire (possible brake lock-up).

If you experience any of these problems, stop your vehicle in a safe, secure area. You should immediately contact your dealer, a local trailer repair 
facility or the nearest automotive repair facility. Continuing to operate 
your trailer can cause damage to your trailer and your boat and 
creates an unsafe driving condition. 


WARNING: Maintain proper torque on lug nuts. Failure to do so may cause serious injury or damage.


Hubs

Perform visual inspection of hub, bearing buddy (optional) and bearing protector or grease cap. If any parts are damaged or missing, replace before towing your trailer. 
If equipped with buddy bearings or posi-lube spindles, apply grease if needed (see procedure in Maintenance Procedures).
WARNING: Keep wheel bearings properly lubricated and in good condition. Failure to do so may cause bearing failure and possible wheel loss resulting in serious injury and / or property damage. 


Tires

Always check tire pressure prior to each use (when tire is cold). The proper tire pressure is listed on the tire sidewall. Please realize that trailer tires often require a higher tire pressure than the tow vehicle.
WARNING: Keep tires properly inflated. Failure to maintain correct pressure may result in tire wear, tire failure and loss of control resulting in serious injury or property damage. 


Ensure that tire treads are visible and there are no slick surfaces on the tires. The penny can be used to verify remaining tread. Insert a penny into the tread; if Abe Lincoln's head is not touched by the top of the tread, there is not enough tread life on the tires. Replace the tires before towing your trailer. 
WARNING: If your tires have bubbles, deep cracks, insufficient tread, or show signs of tread separation DO NOT OPERATE YOUR TRAILER until replacing all defective tires.



Brakes


Brake System (General)


Before each use check brake fluid in reservoir on brake actuator. Refill as necessary using DOT 3 heavy-duty brake fluid to 3/8 inch below the top of the reservoir. 
If your trailer is equipped with disc brakes, ensure that the solenoid wire is securely attached to the tow vehicle's brake wire. The trailer’s solenoid wire is a separate wire at the front of the trailer (near the actuator). You need to attach this wire to a wire from the tow vehicle. The wire from the tow vehicle operates off of the tow vehicle’s reverse lights. When you put the tow vehicle in reverse, the power that illuminates the tow vehicle’s reverse lights also applies power to the solenoid (releasing the brakes). Improperly (or not) engaging the reverse solenoid will result in brakes locking while backing-up the trailer and could cause damage to your trailer and your tow vehicle.
If the trailer is equipped with brakes, connect the breakaway cable (located on top of actuator) to the tow vehicle.
Immediately after hook-up, always test and confirm that trailer brakes are operating properly before attaining normal road speed.
NOTE: To prolong the life of your brakes: after you back up your trailer to park the trailer then ease forward approximately two inches. This will pull the actuator forward, relieving the pressure on the brake components 



Electrical

Lights


Ensure both the wire harness connector from the tow vehicle and from the trailer are free of debris and water. 
Verify that the white ground wire on the trailer is securely attached to the trailer frame. 
If your trailer lights have an independent grounding circuit, verify the grounds from the trailer lights are securely attached to the trailer frame. 
Properly secure the wire harness from the trailer to the wire harness connection from the tow vehicle. 
Check to ensure the brake and turn signal lights correctly illuminate. 
Check for burned out or broken bulbs, cracked or broken lenses, etc. Replace any non-working or damaged parts through your trailer dealer. A small amount of electrical socket grease on plug contacts and light bulb bases can be used to prevent rust and corrosion. 
NOTE: Disconnecting the wire harness connections prior to submerging the trailer may reduce the risk of light bulb failure, fuse failure or other electrical problems. 


WARNING: Operating a trailer without working lights is both dangerous and illegal. Always ensure your lights are working before taking your trailer on the road. 

Back | Next

NATM Logo To Order Call:
(Toll Free) 1-888-728-2474
Fax: 239-275-5409

Site Map

SWFMIA Home Page  
Tie Down Logo

DEALER FORMS

Prices Subject To Change Without Notice
Shipping Costs Are Quoted Separate.

Florida Law Requires Brakes On All Wheels
For Trailers Grossing 3000 Lbs. Or More.
Any Customer Or Dealer Requesting Any Variance From The Law
Assumes All Responsibility.

Trailer Brake Laws By State

 

Carlisle Logo