JLG T500J Operator Manual - Manual (Page 36)

SECTION 3 - TOWING
3-4 – JLG Lift – 3121197
5. Unlock the coupler and open it.
6. Before extending the tongue jack, make certain the ground
surface below the jack pad will support the tongue load.
7. Rotate the jack handle (or crank) clockwise. This will slowly
extend the tongue jack and transfer the weight of the trailer
tongue to the jack.
Rigging Safety Chains (If equipped)
Visually inspect the safety chains and hooks for wear or damage.
Replace worn or damaged safety chains and hooks before tow-
ing.
Rig the safety chains so that they:
a. Cross each other underneath the coupler
b. Loop around a frame member of the tow vehicle or to
holes provided in the hitch system (DO NOT attach
them to an interchangeable part of the hitch assembly)
c. Have enough slack to permit tight turns, but not be
close to the road surface, so if the trailer uncouples, the
safety chains can hold the tongue up above the road.
Testing Breakaway Brake
If the coupler or hitch fails, a properly connected and working
breakaway brake system will apply electric brakes on the trailer.
The safety chains will keep the tow vehicle attached and as the
brakes are applied at the trailer’s axles, the trailer/tow vehicle
combination can come to a controlled stop.
ELECTRIC BRAKES
The breakaway brake system includes a battery, a switch with a
pull pin, and a breakaway brake controller. The breakaway brake
system may be fitted with a charging facility that draws power
from the tow vehicle. If the electrical system on your tow vehicle
does not provide power to the breakaway brake battery, you
must periodically charge the battery to keep the breakaway
brake system in working order.
1. Connect the pull pin cable to the tow vehicle so that the pull
pin will be pulled out before all of the slack in the safety
chains is taken up. Do not connect the pull pin cable to a
safety chain or to the hitch ball or hitch ball assembly. This
would keep the breakaway brake system from operating
when it is needed.