37
Yetti Connection to Tow Vehicle
Coupler and Ball
The coupler on the trailer connects to the ball attached to the hitch on the tow vehicle. The coupler, ball
and hitch transfer the towing forces between the tow vehicle and the trailer. Before each tow, coat the
ball with a thin layer of automotive bearing grease to reduce wear and ensure proper operation; and
check the locking device that secures the coupler to the ball for proper operation.
See the coupler manufacturer’s manual for other inspection and maintenance activities. If you do not
have this manual, call Voyager Industries 800-980-4940 for a free copy.
If you see or feel evidence of wear, such as flat spots, deformations, pitting or corrosion, on the ball or
coupler, immediately have your dealer inspect them to determine the proper action to prevent possible
failure of the ball and coupler system. All bent or broken coupler parts must be replaced before towing the
trailer.
The coupler handle lever must be able to rotate freely and automatically snap into the latched position.
Oil the pivot points, sliding surfaces, and spring ends with SAE 30W motor oil. Keep the ball pocket and
latch mechanism clean. Dirt or contamination can prevent proper operation of the latching mechanism.
When replacing a ball, the load rating must match or exceed the GVWR of the trailer.
Landing Leg or Jack
If a grease fitting is present, you must use a grease gun to lubricate the jack mechanism. Grease the
gears in the top of hand-cranked jacks once a year, by removing the top of the jack and pumping or hand
packing grease into the gears.
Lights and Signals
Before each tow, check the trailer taillights, stoplights, turn signals and any clearance lights for proper
operation
Tires
Trailer tires may be worn out even though they still have plenty of tread left. This is because trailer tires
have to carry a lot of weight all the time, even when not in use. It is actually better for the tire to be rolling
down the road than to be idle. During use, the tire releases lubricants that are beneficial to tire life. Using
the trailer tires often also helps prevent flat spots from developing.
The main cause of tire failure is improper inflation. Check the cold tire inflation pressures at least once a
wee
k for proper inflation levels. “Cold” means that the tires are at the same temperature as the
surrounding air, such as when the vehicle has been parked overnight. Wheel and tire manufacturers
recommend adjusting the air pressure to the trailer manufacturer
’s recommended cold inflation pressure,
in pounds per square inch (PSI) stated on the vehicle’s Federal Certification Label or Tire Placard when
the trailer is loaded to its gross vehicle weight rating (GVWR). If the tires are inflated to less than the
recommended inflation level or the GVWR of the trailer is exceeded, the load carrying capacity of the tire
Improperly operating taillights, stoplights and turn signals can cause collisions.
Check all lights before each tow.
WARNING
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