シボレーサバーバンの取扱説明書・マニュアル [全578ページ 3.04MB]
2009_chevrolet_suburban_owners.pdf
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Do not exceed the maximum allowable tongue weightfor the vehicle. Choose the shortest hitch extensionthat will position the hitch ball closest to the vehicle.This will help reduce the effect of trailer tongue weighton the rear axle.After loading the trailer, weigh the trailer and then thetongue, separately, to see if the weights are proper.If they are not, adjustments might be made by movingsome items around in the trailer.Trailering may be limited by the vehicles ability to carrytongue weight. Tongue weight cannot cause the vehicleto exceed the GVWR (Gross Vehicle Weight Rating) orthe RGAWR (Rear Gross Axle Weight Rating). The effectof additional weight may reduce the trailering capacitymore than the total of the additional weight.Consider the following example:A vehicle model base weight is 5,500 lbs (2 495 kg);2,800 lbs (1 270 kg) at the front axle and 2,700 lbs(1 225 kg) at the rear axle. It has a GVWR of 7,200 lbs(3 266 kg), a RGAWR of 4,000 lbs (1 814 kg) and aGCWR (Gross Combination Weight Rating) of 14,000 lbs(6 350 kg). The trailer rating should be:Expect tongue weight to be at least 10 percent oftrailer weight (850 lbs (386 kg)) and because the weightis applied well behind the rear axle, the effect on therear axle is greater than just the weight itself, as muchas 1.5 times as much. The weight at the rear axle couldbe 850 lbs (386 kg) X 1.5 = 1,275 lbs (578 kg). Since therear axle already weighs 2,700 lbs (1 225 kg), adding1,275 lbs (578 kg) brings the total to 3,975 lbs (1 803 kg).This is very close to, but within the limit for RGAWRas well. The vehicle is set to trailer up to 8,500 lbs(3 856 kg).4-55
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