4-5
TOPAZ
12. Attach the breakaway switch cable to an anchor
point on the tow vehicle box. Set the cable
length so the tow vehicle can make a full
jackknife turn without activating the switch/
brakes.
13. Insert the connector on the end of the trailer
wiring harness into the tow vehicle electrical
socket. Be sure it is securely seated to mini-
mize electrical losses. Clean the terminals if
required.
14. Perform an electrical system check:
a. Start tow vehicle engine.
b. Activate brake lights, turn signals and
running lights.
c. Correct any deficiencies before travelling
15. Remove the chocks from in front of and behind
each wheel.
16. Perform an emergency braking system
check:
a. Disconnect electrical plug-in.
b. Trip the breakaway switch to activate
braking system.
c. Drive forward a little. All trailer tires should
skid. If they do not, determine the cause
of the problem before proceeding. Nor-
mally the batteries need to be brought to
full charge.
d. Re-attach electrical connector to truck.
17. Reverse the above procedure when
unhooking.
IMPORTANT
In order for the emergency braking
system (activated by the breaka-
way switch cable) to function
properly, the batteries on the
trailer must be fully charged. Use
the shoreline or tow vehicle
charging system to maintain
batteries in a fully charged
condition.
Fig. 4-6 BREAKAWAY CABLE
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