Wacker Neuson HI 770XHD, Operator'S Manual

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Lifting and Transporting HI 770XHD
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wc_tx001881gb.fm
Continued from the previous page.
5. If the brakes did not function, check the voltage of the breakaway battery.
To do so:
a. Remove the cover of the battery box.
b. Remove the wires connected to the breakaway battery
(d) .
c. Measure the voltage. If 12–14 VDC is not measured, replace or recharge the
breakaway battery.
6. If 12–14 VDC was measured but the brakes did not function, there is a wiring or
mechanical fault with the brakes. Repair any faults before towing.
7. If the brakes function properly:
a. Reconnect the wires to the breakaway battery.
b. Reinstall the cover to the battery box.
c. Reinstall the breakaway pin
(b) into the brake switch.
d. Connect the trailer wiring plug to the tow vehicle.
Result The procedure to test the breakaway system is now complete.
wc_gr008515
d
VDC
1000
200
20
2
200m
F
V
A
V- COM