Section 2
--- Driving & Safety
Cayman 2005
38
Ascending a Grade:
When approaching an uphill grade, assess the grade and length before beginning the climb. Prepare
early for long climbs. Unlike gasoline engines, diesels do not necessarily produce more power by press-
ing further on the accelerator! A gasoline engine will happily work at full throttle (at least for a short
period of time), but a diesel usually just wastes fuel at full throttle. The power output from a diesel
engine is dependent upon the following:
•
RPM -
Every engine has a range of RPM that produces power most efficiently.
•
Fuel/Air mixture -
At a given RPM, the engine, even with the help of a turbo-charger,
can only "pump" a given volume of air into the combustion chamber. This volume of
air can efficiently combine with only so much fuel; so it follows logically that feeding
more fuel to the fire will simply waste fuel.
Determine ranges where the motorhome works best by driving long grades when temperatures
remain stable for the duration of the climb.
IMPORTANT SAFETY TIP:
If the road speed degrades to the point where the motorhome is moving significantly
below the posted speed, turn on the four way flashers. Take advantage of pullouts if
traffic is building. Once in the pullout, if there is sufficient clearance for safety, take a
break. Idle the engine to allow the exhaust and the turbo to cool. While these are cool-
ing, the transmission also cools. Monitor the gauges and enjoy the view while you wait.
Descending a Grade
:
Prepare to descend a grade at the crest of the hill. Observe any signs indicating
grade angle and duration. The sign may suggest maximum downhill speed according
to Gross Combined Weight (the combined weight of the motorhome and a
trailer/tow car). At the crest of the hill, manually shift the transmission into a lower
gear. Do not allow the motorhome to gain momentum before slowing down. Use the
Exhaust Brake to help maintain a slow, safe downhill speed. Located on the Driver
Side console is the Exhaust Brake switch. When the Exhaust Brake switch is on, the
Exhaust Brake will activate when the throttle is released.
With Exhaust Brake applied, road speed may increase until the transmission
automatically shifts to the next higher gear. Apply the service brakes using moder-
ately heavy pressure on the brake pedal to reduce speed and manually downshift to
maintain a safe slow speed. Do not "pump" the brakes as this can result in a loss of
air pressure. Avoid "riding" the brakes as this can cause the brakes to overheat.
Either method can result in loss of brake effectiveness or brake failure.
downhill
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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