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Brake service & maintenance of braking systems, Backing up a trailer with disc brakes, Brake service and maintenance – ShoreLand'r Powersports Trailer 2008 User Manual

Page 11

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Midwest Industries, Inc.

Ida Grove, IA 51445

800.859.3028

www.shorelandr.com

0003513

Page 11

REV B 4/11/2008

BRAKE SERVICE & MAINTENANCE OF

BRAKING SYSTEMS

ShoreLand’r®uses only a hydraulic surge brake system with a

hydraulic surge actuator on their Powersports trailers. This system

has an actuator on the tongue of the trailer that attaches to the tow

vehicle. It is designed that when the brakes are applied on the tow

vehicle the trailer will push into the tow vehicle. As this load is ap-

plied to the actuator a master cylinder inside the actuator generates

pressure on the brake fluid that is then supplied to the wheel cylin-

ders of the drum brakes or into the calipers on disc brake systems.

As this brake fluid is supplied the pressure is applied to the brake

shoes or pads causing the brakes to apply on the trailer.

BACKING UP A TRAILER WITH DISC BRAKES

OPERATING TRAILERS WITH DISC BRAKES

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. Otherwise, a lockout key must be used (this

key is provided with your actuator).

TRAILER’S 5-PRONG WIRE HARNESS REQUIREMENTS

Required 5-prong trunk harness on tow vehicle.

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 brake calipers. 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 nor-

mally 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 har-

ness 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 & 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 ve-

hicle 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.

BRAKE SERVICE AND MAINTENANCE

WARNING: Trailer brakes must be maintained in good working

conditions. Loss of adequate braking could result in serious in-

jury or property damage.

The braking systems are covered in much greater detail in the

Brake Information Packet that pertains to brake systems and

brake components only. Contact your local dealer or contact

Shoreland’r

®

directly to receive a copy of this information.

This trailer is equipped to meet applicable U.S. Federal safe-

ty standards. Check local and state requirements regarding

brakes and any additional equipment that may be required.

Any modifications or additions including load equalizing

hitches, without written factory consent: usage in an abnor-

mal manner including overloading voids all manufacturers

warranties and liability.