Section 1 --- General Information
Cayman 2005
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Low Point Drain - The lowest point in the plumbing. Drains are placed here so that water will drain out
of the lower end of the motorhome. These drains must be closed when you fill the water tank.
OEM - Term for Original Equipment Manufacturer.
OHM - A unit for measuring electrical resistances.
Ohm’s Law - Expresses the relationship between Volts (E) and amperes (I) in an electrical circuit
with resistance (R). It can be expressed as follows: E = IR. If any two of the three values are
known, the third value can be calculated by using the above formula.
Potentiometer - A device for measuring an unknown potential difference or electromotive force.
Pounds Per Square Inch Gauge (psig) - Pressure measured with respect to that of the atmosphere. This
is a pressure gauge reading in which the gauge is adjusted to read zero at the surrounding atmospheric
pressure. It is commonly called gauge pressure.
Purge - The blast of air from the air tank Auto Purge valve expels moisture from the air tank with every
brake application.
Roadside - This refers to the side of the motorhome which faces the road when it is parked. Often called
the off-door side or the driver’s side.
SCA - Term for Supplemental Coolant Additive. Chemical added to coolant for diesel engines to help
prevent cylinder liner pitting and internal corrosion.
Shore Line - This is the electrical cord which runs from the motorhome to the campground 120 Volt
electrical supply.
Shore Line Plug - The 120/240 Volt AC outlet allows the motorhome to be hooked up to a campground
facility.
Stinger - An arm attachment on a tow truck that is used to lift the motorhome slightly so that it can
be towed.
VIM - Vehicle Interface Module. Component used to interface engine and transmission functions with
the motorhome chassis operation.
Volt - The unit of measure for electric potential.
Watt - The unit for measuring electrical power, i.e. the rate of doing work, in moving electrons by or
against an electric potential.
Wet Cell Battery - A type of battery that uses liquid as an electrolyte. This type of battery requires
periodic maintenance such as cleaning the connections and checking the electrolyte level.
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