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upon tow ratings, conventional trailers can be towed by trucks, cars or sport-utility vehicles.
U M B I L I C A L C O R D
— Wiring harness which connects the trailer to the tow vehicle during transport. The umbilical
cord supplies the trailer with DC power for charging the batteries and operating DC equipment. It also operates the
trailer brakes and signal lights. (Also referred to as the 7-way power cord.)
U N D E R B E L LY
— The RV's under-floor surface, which is protected by a weatherproofed material.
U T Q G L ( U N I F O R M T I R E Q UA L I T Y G R A D E L A B E L I N G )
— A program that is directed by the government
to provide consumers with information about three characteristics of the tire: tread wear, traction and temperature.
Following government prescribed test procedures, tire manufacturers perform their own evaluations for these charac-
teristics. Each manufacturer then labels the tire, according to grade.
U V D E G R A DAT I O N
— A breaking down of material due to the sun's harsh ultraviolet rays.
U N LOA D E D V E H I C L E W E I G H T ( U V W )
— The weight of a vehicle as built at the factory with full fuel, engine
(generator) oil and coolants. It does not include cargo, fresh water, propane, occupants, or dealer installed accessories.
WA L LY WO R L D
— Slang term used by RVers to describe a Wal-Mart.
WA S T E WAT E R TA N K S
— The gray water tank holds the waste water from the sinks and showers. The black water
tank holds the waste from the toilet.
WAT E R P R E S S U R E R E G U L AT O R
— Device (customer supplied) installed on the water hose attached to city
water to limit the water pressure entering the RV. Most regulators limit water pressure to 40 psi.
W E E K E N D E R S
— People who own their RV's for weekend and vacation use.
W E I G H T & LOA D
— These terms are generally used interchangeably. For the purposes of understanding RV ap-
plications: Vehicles have WEIGHT, which impart LOADS to tires, axles and hitches. Scale measurements taken when
weighing, are LOADS carried by the tires. The measured “loads” are used to calculate Gross Vehicle Weight (GVW),
Gross Axle Weight (GAW), Gross Combination Weight (GCW), and hitch loads.
W E T W E I G H T
— The weight of the vehicle with the fuel, freshwater and propane tanks full.
Note these important weights:
Propane
4.2
lbs. per gallon
Water
8.3
lbs. per gallon
Gasoline
6.3
lbs. per gallon
Diesel Fuel
6.6
lbs. per gallon
G L O S S A R Y
Summary of Contents for PINECREST
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