Thursday, Jul 01, 2010 at 18:17
I also have this from Jayco in answer to a question on weights and the OP may be interested as
well
Hello Graham,
I will try to answer your questions. The Jayco vans are weighed in the “dry” condition and as per the actual Order for the particular van. This means that the
water tank is (or tanks are) empty, the gas cylinder is (or cylinders are) empty and if there is a HWS it also is empty. I refer to the Order because there are many variables eg Sterling caravans are currently equipped with a 100 Ampere-Hour battery as standard but customers sometimes specify a second battery, especially if they intend later to add
solar power. Other models may not come with a battery unless ordered and if added after market it/they use up some of the allowable payload. In order to
check any van’s weight properly it must be taken back to the factory tare condition with any after market additions removed (eg annex not supplied by Jayco but carried in the boot).
Any additions made after Jayco’s manufacture will take up some of the allowable payload
The allowable payload is added to the Tare Mass to give the Aggregate Trailer Mass (ATM) this is stamped on the VIN plate. The all up weight of the van loaded for travel must not exceed this weight.
Finally the Empty Ball Mass is deducted from the ATM to give the Gross Trailer Mass (GTM) which is the maximum allowed total weight on the axle/axles. This is a conservative figure because the actual tow ball weight of a correctly loaded van will always be greater than the empty ball mass and therefore the actual axle/axles load will be less than the GTM provided the ATM is not exceeded..
I have left off the rest as it pertained to the question regarding a particular instance.
Hows that for a definitive answer
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