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INSPECTION, SERVICE & MAINTENANCE
Breakaway Break
Breakaway Battery - This battery supplies the power to operate the trailer brakes if
the trailer uncouples from the tow vehicle. Be sure to check, maintain and replace the
battery according to the battery manufacturer’s instructions.
Breakaway Switch - This switch causes the breakaway battery to operate the electric
brakes if the trailer uncouples from the tow vehicle.
The lanyard for the pull pin is connected to the tow vehicle, and the switch is connected
to the trailer. To check for proper functioning of the switch, battery and brakes, you
can do this by trying to pull the trailer with the tow vehicle, after pulling the pin. The
trailer brakes may not lock, but you will notice that a greater force is needed to pull the
trailer. Do Not Use Breakaway Switch as Parking Brake
WARNING
If electric breakaway brakes do not operate when trailer is uncoupled from the
tow vehicle, death or serious injury can occur. Check emergency breakaway
brake system BEFORE each tow.
10.2.1.6 Tow Vehicle Operated Electric Brakes
The electric brakes that operate in conjunction with the tow vehicle brakes must be “synchronized”
so that braking is properly distributed to the tow vehicle brakes and the trailer brakes. For
proper operation and synchronization, read and follow the axle/brake and the brake controller
manufacturers’ instructions. If you do not have these instructions, contact your dealer for
assistance.
10.2.1.7 Magnets for all Electric Brakes
To make certain an electrically-operated braking system will function properly, you must have
your dealer inspect the magnets at least once a year, or each 12,000 miles. See the brake
manual for wear and current inspection instructions.
TRAILER BRAKES – SURGE
(IF EQUIPPED)
10.2.1.8 Surge Brake Master Cylinder
Hydraulic Reservoir