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12-5
SECTION 12 –
MISCELLANEOUS
Gross Combination Weight Rating
(GCWR)
This is the maximum allowable weight of the
motor home and loaded trailer, including the
items noted in GVWR above. For purposes of
this definition, the “trailer” can be a trailer, a
vehicle towed on a dolly, or a vehicle towed by
means of a tow bar. GCWR is typically specified
based on durability and performance of the tow
vehicle drive train: engine and cooling systems,
transmission, drive line, drive axle, and others.
The tow vehicle brakes may be rated for
operation at GVWR, not GCWR.
NOTE: State or provincial laws/regulations may
require the “trailer” to be equipped with
brakes that are activated when the motor
home brakes are applied. The user is
responsible to know and understand the
laws of the state or province being
traveled. The Department of
Transportation in a given state or
province should be able to provide
specific information.
Hitch Ratings
SAE Standard J684 defines:
•
Class 1 trailers as “GVWR not to exceed
2,000 lbs”.
•
Class 2 trailers as “GVWR over 2,000 lbs. and
not to exceed 3,500 lbs. GVWR”.
•
Class 3 trailers as “GVWR over 3,500 lbs. and
not to exceed 5,000 lbs. GVWR”.
•
Class 4 trailers as “GVWR over 5,000 lbs. and
not to exceed 10,000 lbs. GVWR”.
Hitches are to be permanently marked with
“Maximum trailer GVWR to be drawn” and
“Maximum vertical tongue weight to be
imposed.” The SAE standard does not specify a
vertical load rating.
Traditionally, hitches are labeled 3,500/350 as
Class 2, 5,000/500 as Class 3, and 10,000/1,000
as Class 4. The vertical tongue load value of 10
percent of drawn rating apparently comes from
the collective experience that 10 percent is the
minimum value that provides stable towing of a
trailer.
Ford’s towing guide (if equipped with such
chassis) suggests 10 to 15 percent for trailers over
2,000 lbs. Within GCWR, a Class 3 hitch allows
“dingy” towing a large car or mid-size SUV; a
Class 4 hitch allows “dingy” towing a large SUV
or pickup. (Hitch ratings are independent of
towing vehicle ratings.)
NOTE: Some models equipped with a Class 3
hitch may have a label limiting vertical
tongue load to 350 lbs. All models
equipped with a Class IV hitch have a
label limiting vertical tongue load to 500
lbs. On a 228" wheelbase, a 500-lb. load
on a hitch 11' from the rear axle will
apply about 800 lbs. at the axle.
The user must verify that the hitch equipment
being used is adequate for the application.
FIREPLACE
–If Equipped
To Operate Fireplace:
•
Turn fireplace ON.
•
Turn the thermostat control clockwise all the
way to turn the heater on.
NOTE: When the room reaches desired
temperature, turn the thermostat control
counter-clockwise until you hear a
“click”. Leave in this position to
maintain the room temperature.
•
Turn the Flame Brightness Control knob to
increase/decrease the flame brightness.
Whenever there is a loss of AC power to the
fireplace, the remote control provided in your
InfoCase will need to be reprogrammed.