If your boat is not loading, unloading, or riding on your trailer smoothly it may not be properly adjusted for your boat. The following information is provided solely as a diagnostic tool. Trailer owners should always contact their local dealer for any trailer adjustments. Your dealer has the proper tools to safely make adjustments without damaging your boat or trailer.

This Measuring Guide is divided into 4 Steps:
STEP #1
Choosing the correct ShoreLand'r trailer for your boat or personal watercraft.

STEP #2
Obtaining a precise fit of the rollers or bunks to the hull.

STEP #3
Calculating the proper tongue weight and adjusting the trailer to match it.

STEP #4
Properly adjusting the winchpost.

Here are some possible solutions for your loading problems:

	• Be certain that the boat is riding perfectly level in the water. Re-distribute weight if necessary.
	• When driving the boat onto the trailer, hesitate for a moment when the bow contacts the rear rollers to allow the bow to center. Then apply power smoothly.
	• Do not submerge rollers too deep in the water when loading. The water should be even with the step on the taillight (rollers right at water level). If the boat is floating over the rear rollers, reduce the water depth so that the rollers contact the hull. [Note: if the boat slams down when coming over center you may need to back in the water a little deeper]
	• Re-adjust the hull stabilizer pads out and up as far as possible. Note: should be just touching the hull.
	• Check the rear cross member pivot to be sure that it moves freely.
	• Rollers should be adjusted so that they are not resting directly on the lift strakes (should be on one side or the other). If the bow consistently pulls to one side or the other, adjust one of the rear roller racks (opposite side) outward toward the fender. If the bow pulls left, move the right roller rack outward; if the bow pulls right, move the left roller rack outward.

Tire inflation pressure is one of the most important factors in tire life. Tires should be inflated to the pressure recommended by the manufacturer for the load. Please check the side wall of you tire for the correct PSI ratings. Pressure should always be checked cold before operation. Check inflation pressure weekly during use to insure maximum tire life and monitor tread wear.

If you have any questions, about your tires, performance, appearance, etc, please contact the tire manufacturer. You can find the manufacturer's name on the sidewall of the tire. Here is the information on our tire manufacturers:

Goodyear United States - (800) 859-3028
Goodyear Canada - (800) 387-3288
Duro - (800) 966-8473
Titan - (800) 251-9354
Maxxis/Tredit - (888) 306-3039
Denman/Tredit - (888) 306-3039

Tire Wear Guide
The following Tire Wear Guide will help you identify the causes and solutions of most common tire wear patterns.

Tire Wear Guide The following Tire Wear Guide will help you identify the causes and solutions of most common tire wear patterns.
Wear Pattern		Cause	Solution
	Center Wear	Over Inflation	Adjust pressure to particular load per tire catalog
	Edge Wear	Under Inflation	Adjust pressure to particular load per tire catalog
	Side Wear	Loss of camber or overloading	Make sure load doesn't exceed axle rating. Correction is 3/4 - 1 degree positive camber (top of wheel rim 3/16" further out than bottom.
	Toe Wear	Incorrect toe-in	Correct toe-in is 0 - 1/2 degree.
	Cupping	Out-of-balance	Check bearing adjustment and balance tires.
	Flat Spots	Wheel lockup & tire skidding	Avoid sudden stops when possible and adjust brakes.

Tire wear should be checked frequently because once a wear pattern becomes firmly established it is difficult to stop, even if the underlying cause is corrected.

NOTE: If your trailer's tires show any unusual signs of wear, contact the tire manufacturer or a tire dealer for recommended corrective procedure. For tire warranty issues, please contact the tire manufacturer. For Goodyear tire replacement outside of the warranty, please contact your local Goodyear dealer. For Titan/Duro tire replacement outside warranty, please contact a ShoreLand'r dealer for ordering information.

Many ShoreLand’r trailers come with disc brakes as standard equipment. This system is designed to brake in both forward and reverse, therefore the brakes must be disengaged to back up.

IMPORTANT: To properly operate this system the tow vehicle MUST be equipped with a matching 5-prong trunk harness to power the solenoid.

How the Solenoid Lockout Works
The disc brake actuator has a lockout solenoid that is activated by the tow vehicle’s back-up lights. When the vehicle is put in reverse the solenoid redirects the brake fluid back into the actuator reservoir rather than applying pressure to the brakes. Then, when the tow vehicle is put into park, neutral or a forward gear the solenoid returns to its original position allowing the brakes to function normally during travel.

Alternatives to the 5-Prong Harness
As stated above, the best way to operate the solenoid is with a 5-prong wire harness on the tow vehicle that matches the wire harness plug of the trailer. This allows the solenoid to be plugged in at the same time the trailer lights are connected for towing. If a 5-prong harness is not available there are a number of short-term fixes that will allow you to use the trailer.

UFP Actuator Lockout Key
UFP actuators are shipped with a lockout key attached to the side of the actuator on a short cable. The round end of the key is simply inserted in the slot on the side of the actuator. When the key is in the slot the trailer can be backed without the brakes engaging. When the trailer is moved forward the key will fall out of the slot. The key fits very loosely to insure that it will not remain in the slot after backing. Leaving the lockout key in the slot would disable the brake system during normal use, which could result in a serious accident.

Adding a 5th Wire and Plug
A separate wire and plug can be wired into the tow vehicle back-up lights that can be plugged into the fifth wire of the trailer harness. The solenoid will work as described above, however this new wire will have to be plugged into the trailer harness separately.

Using a 4-prong Plug
If the tow vehicle is equipped with a 4-prong plug, the trailer can still be moved using the solenoid to lock out the brakes. Though not ideal, this is acceptable for backing trailers in either a storage yard or a shop environment where the tow vehicle is not the normal vehicle that will be used with the trailer.

Before backing, simply unplug the trailer’s 5-prong harness from the tow vehicles 4-prong trunk harness. Turn the harness 90 degrees and plug the blue wire on the 5-prong harness into the brown wire on the 4-prong harness. To activate the solenoid, turn on the tow vehicle’s lights. The power for operating the running lights will operate the solenoid disengaging the brakes so the trailer can be backed up.

UFP actuator with lockout key
Turn plug to connect the blue wire to the brown wire

If all lights on trailer do not work, follow these steps …

Make sure the towing vehicle harness is working properly. If not – check the following.

	• Check the Groundwire on the harness to the vehicle. Make sure all connections are secured tightly and properly, plug end is clean and not corroded, and there are no cut or broken wires.
	• Check tongue harness on the trailer including ground wire, plug ends, and broken or cut wires

If lights on trailer work on one side of the trailer only…

	• Check ground wire on the faulty side.
	• Plug ends not properly plugged in.
	• Check for bare or broken wire touching metal causing the light to short out.
	• Faulty wire harness from the wire supplier.

If taillight is not working or functioning properly…

	• Check ground wire.
	• Check plug end.
	• Check light bulbs in taillight.
	• Taillight is bright at all times as if the brakes are being applied, check for faulty wire in the taillight.
	• Wire on taillight may be pinched between taillight and mounting bracket.

If side Markerlight is not working …

	• Check ground wire
	• Check plug ends.
	• Light bulb or bad marker light.
	• Wire on marker light may be pinched between marker light and frame.

If cluster of three lights is not working…

	• Broken ground wire on light cause by improper assembly (screwed on to tight).
	• Check plug ends.
	• If one of the three doesn’t work check bulb or ground wire on light.