Driving & Safety ---
Section 2
Cayman 2005
75
Tire Pressure:
A motorhome may weigh slightly heavier on one side. Tire inflation pressure of the heavier side
tires determine the inflation pressure for all tire(s) on that axle due to the weight transfer that occurs
when cornering.
Improperly inflated tires, or an incorrectly loaded suspension, can result in poor fuel economy, poor
handling and over-stressed chassis components. How the motorhome is loaded will influence tire
inflation pressure and the load carried by each axle. This is why each wheel position must be
weighed. Motorhome axle configuration and floor plan styles will require different weighing proce-
dures.
NOTE:
When weighing a motorhome, each tire on any axle must be inflated to the same pres-
sure. The wheel position carrying the most weight will determine the tire inflation
pressure for each tire of that particular axle.
Scales:
Certified public scales are located in moving and storage lots, farm supplies with grain elevators,
gravel pits, recycling companies and large commercial truck stops. To locate a nearby public scale
access, check the local area telephone book yellow pages under Scales-Public or Weighers. A nominal
fee may be charged, but this is money wisely spent.
Weight scale types and weighing methods determine the procedure used to calculate proper tire
inflation pressure and axle loading. Several types of scales are in use today. A platform scale will allow
the entire motorhome to fit on the scale to read the GVW in one scale recording. A segmented platform
scale is designed to weight one axle at a time. A single axle scale weighs one axle at a time. Some
scales read only one wheel position at a time due to physical size. Several scale readings may be
required to determine the GAW or GVW total. Each wheel position requires weighing, referred to as a
four-point weigh, to accurately determine the correct tire inflation pressure.
NOTE:
The most accurate method to determine proper tire pressure is four-point weighing.
Each wheel position must be weighed independently. Weighing the entire axle will not
accurately determine the total weight carried by that wheel position. When calculating
the drive axle dual tire pressure using a independent corner weigh method, divide the
total weight by two to determine the weight carried by each tire. Each wheel position
must be weighed and recorded.
When weighing, the scales and the motorhome must be level to obtain an accurate scale reading.
Even when an axle is not physically on the scale, a definite lean in the motorhome will produce inaccu-
rate scale readings.
Summary of Contents for Cayman 2005
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Page 76: ...Section 2 Driving Safety Cayman 2005 76 100179D Weight Label...
Page 81: ...Driving Safety Section 2 Cayman 2005 81 020254 Cargo Carrying Capacity Flowchart...
Page 83: ...Driving Safety Section 2 Cayman 2005 83 020255k Actual Worksheet...
Page 84: ...Section 2 Driving Safety Cayman 2005 84 Weight Record Sheet...
Page 85: ...Driving Safety Section 2 Cayman 2005 85...
Page 86: ...Section 2 Driving Safety Cayman 2005 86 010725 010726c VIEWS Front Rear...
Page 87: ...Driving Safety Section 2 Cayman 2005 87 010723f 010724e Roadside Curbside...
Page 95: ...Driving Safety Section 2 Cayman 2005 95 NOTES...
Page 96: ...Section 2 Driving Safety Cayman 2005 96 NOTES...
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Page 108: ...Section 3 Exterior Interior Care Cayman 2005 108 Fabric Specifications Charts...
Page 109: ...Exterior Interior Care Section 3 Cayman 2005 109...
Page 134: ...Section 3 Exterior Interior Care Cayman 2005 134 NOTES...
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Page 165: ...Appliances Section 4 Cayman 2005 165 NOTES...
Page 166: ...Section 4 Appliances Cayman 2005 166 NOTES...
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Page 203: ...Equipment Section 5 Cayman 2005 203 NOTES...
Page 204: ...Section 5 Equipment Cayman 2005 204 NOTES...
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Page 229: ...Water Systems Section 6 Cayman 2005 229 WATER SYSTEM DIAGRAM 040487c Typical Layout...
Page 230: ...Section 6 Water Systems Cayman 2005 230 NOTES...
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Page 250: ...Section 7 LP Gas Systems Cayman 2005 250 NOTES...
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Page 286: ...Section 8 Electrical Systems House Cayman 2005 286 NOTES...
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Page 292: ...Section 9 Electrical Systems Chassis Cayman 2005 292 080427f 080387C 080388c...
Page 315: ...Electrical Systems Chassis Section 9 Cayman 2005 315 ENGINE NO START FLOW CHART...
Page 316: ...Section 9 Electrical Systems Chassis Cayman 2005 316 NOTES...
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Page 376: ...Section 10 Chassis Information Cayman 2005 376 LUBRICATION CHARTS 070166G FRONT...
Page 382: ...Section 10 Chassis Information Cayman 2005 382 METRIC U S CONVERSION CHART...
Page 384: ...Section 10 Chassis Information Cayman 2005 384...
Page 385: ...Chassis Information Section 10 Cayman 2005 385...
Page 386: ...Section 10 Chassis Information Cayman 2005 386...
Page 387: ...Chassis Information Section 10 Cayman 2005 387...
Page 389: ...Cayman 2005 INdex...
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