22
2009
K
night
Driving & Safety - 2
It is possible to be within the GCWR but
exceed the GAWR. When tongue weight is
applied, mechanical advantage increases with
distance (lever) from the hitch ball to the drive
axle. The drive axle now becomes a pivot
point (fulcrum). As tongue weight increases
(effort), weight on the drive axle also increases
(fulcrum) while weight on the front axle
decreases (load) as weight is displaced from
the front axle.
It may be necessary to weigh both the tow
vehicle and towed load as an assembly to
ensure the GAWR has not been exceeded.
It is also possible to be within the rating of
the hitch receiver and yet exceed the GCWR.
Due to changes in weight, the motorhome
must be weighed in a loaded, ready for travel
condition that includes passengers, cargo and
liquids. Subtract the weight of the motorhome
in a loaded, ready to travel condition from the
GCWR to determine tow capacity. Whether
towing a vehicle or trailer, the load being
towed must be weighed to ensure the towed
weight, when added to the tow vehicle, will
not exceed the GCWR and the weight ratings
of each tow system component are equal to or
greater than the load being towed.
WARNING
The motorhome and towed load must
be weighed after they are loaded for
travel to determine if actual weights
are within towing specification. Each
component of the towing system must
be rated equal to or greater than the
load being towed. DO NOT exceed the
Gross Combination Weight Rating.
Taillight Configuration:
Taillights come in different configurations
referred to as a 2-wire or 3-wire configuration.
A 2-wire configuration has all red lens. A
3-wire configuration usually has red and amber
lens. Amber is used for turn signals only and
red for taillight and brake light. These systems
are electrically different. Whenever hooking
a 2-wire system to a 3-wire system, or vice
versa, a converter box must be installed for
correct taillight function. A taillight converter
is available from auto and RV supply stores.
DO NOT
attempt to wire a tow plug connector
if unfamiliar with these systems. A trained
technician will install the proper converter so
the taillights and turn signals work correctly
on the motorhome and towed vehicle or trailer
when the tow plug connection is made.
Tow Plug Connection
The motorhome is pre-wired from the factory
with an electrical connection for towing. The
connection is located on the rear cap, near
the hitch receiver. Convoluted tubing protects
the tow harness wires. Current draw should
not exceed ten amps for each designated light
circuit. Within the electrical connection is a
positive terminal for use when towing a trailer
equipped with a battery. The positive terminal
maintains the charge of the trailer battery.
090512F
gawr gawr Tow weight
Tongue
weight
090512
Ball Mount
weight rating
hitch Ball
weight rating
090512b
Towng Weght checklst
Towed load
(Tongue weight) ________
(Overall) ________
yes
no
Towng equpment
(Ball Mount) ______
(hitch Ball) ______
yes
no
htch Recever
(Tongue) _______
(Tow) ______
yes
no
gaWR
(rated) ______
(after hitching) ______
yes
no
gcWR
(rated) ______
(after hitching) ______
yes
no
Insert Weight Ratings: Check Yes or No if within specifications.
Содержание 2009 Knight
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