DYNASTY 2006
CHASSIS INFORMATION — SECTION 10 • 349
Coolant Hoses:
Rotten, swollen and worn hoses, as well as loose connections, are frequent causes of coolant system problems.
Overheating can be caused by a collapsed hose or a clog caused by rubber shedding from a rotten hose. Replace
any hose found to be cracked, swollen or damaged. Connections should be
inspected
periodically and hose
clamps tightened.
Every 12 months: Inspect
all hoses, clamps, and fi ttings for leaks due to cracking, softness, and loose clamps/
fi ttings. Look for signs of fl uid leaks, damaged end fi ttings, ballooning, chafed, kinked, or crushed hoses, and
loose clamps and fi ttings. Correct any defi ciencies found.
BRAKE - AUXILIARY (Engine Brake)
Auxiliary braking systems are designed to supplement the standard air braking system. These devices are
not designed to bring the motorhome to a complete stop; however, can assist in controlling the speed of the
motorhome. Use of the engine braking system can extend the life of pads, shoes, rotors and drums, saving on
costly service brake repairs.
The engine-braking device operates on a different principle than an exhaust brake. An engine brake functions by
releasing engine compression. The effect of the engine brake increases with engine speed. When the engine brake
is activated the Allison transmission automatically downshifts, utilizing the gear selected and maximizing the
engine braking effect.
When the engine brake activates, an electrical signal is sent to the engine ECM (electronic control module).
The ECM controls a hydraulic circuit that opens the exhaust valves near the end of the compression stroke. The
potential engine braking power depends on turbocharger boost pressure, engine speed, compression ratio, injector
timing and when the exhaust valves open.
Located on the left console is a
HI/LOW
switch. The
HI/LOW
switch allows for the selection of different
levels of engine braking power. Selecting
LOW
activates the engine brake on three cylinders. Selecting the
HI
setting activates the engine brake on six cylinders.
The engine brake will not be active when:
• Engine speed goes below 850 RPM.
• An electronic fault code is active.
Applying the service brakes will disengage the cruise control. Use the engine brake when traveling down a hill,
on the freeway or exiting the off ramp. The engine brake will allow the engine temperature to decrease while
going downhill.
NOTE:
Idle the engine three to five minutes at approximately 1000 RPM to warm the engine
before activating the engine brake. Do not operate the engine brake until the engine oil
temperature is above 30º C (86º F).
WARNING:
The engine brake is designed to assist the motorhome service brakes, not for stopping.
Summary of Contents for DYNASTY 2006
Page 12: ......
Page 18: ...18 SECTION 1 GENERAL INFORMATION DYNASTY 2006 NOTES...
Page 20: ......
Page 22: ......
Page 24: ......
Page 61: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 61 Weight Label 100179d...
Page 67: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 67 Actual Worksheet 020255c...
Page 68: ...68 SECTION 2 DRIVING SAFETY DYNASTY 2006 Weight Record Sheet 020262...
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Page 118: ...118 SECTION 3 EXTERIOR INTERIOR CARE DYNASTY 2006 NOTES...
Page 120: ......
Page 160: ...160 SECTION 4 APPLIANCES DYNASTY 2006 NOTES...
Page 162: ......
Page 210: ......
Page 238: ......
Page 252: ...252 SECTION 7 LP GAS SYSTEMS DYNASTY 2006 NOTES...
Page 254: ......
Page 280: ...280 SECTION 8 ELECTRICAL SYSTEMS HOUSE DYNASTY 2006 NOTES...
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Page 308: ......
Page 372: ...372 SECTION 10 CHASSIS INFORMATION DYNASTY 2006 METRIC U S CONVERSION CHART...
Page 374: ...374 SECTION 10 CHASSIS INFORMATION DYNASTY 2006...
Page 375: ...DYNASTY 2006 CHASSIS INFORMATION SECTION 10 375...
Page 377: ...Dynasty 2006 INDEX...
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