OPERATION 129
4 Start the engine and run it at an increased idle speed for approximately 5 minutes to
remove any remaining air in the system.
5 Check the fuel system for leaks.
Note:
If the engine does not start following this procedure, contact your local MACK
dealer.
Engine Warm-Up
CAUTION
Idling the engine unnecessarily for long
periods of time wastes fuel and fouls
injection nozzles. Unburned fuel causes
carbon formation and oil dilution. NEVER
race an engine during warm-up.
Engine damage can occur if the engine is not warmed up to a minimum operating
temperature of 77°C (170°F) before putting the vehicle into full operation.
Heavy-duty diesel engines are designed to operate at optimum efficiency when they are
running loaded at (or very near) normal operating temperature, where efficient combustion
takes place. When the engine is operated unloaded, lightly loaded (i.e., stop-and-go
operations, PTO operations, or periods of extended engine idling) or in cold weather
conditions, normal operating temperature may not be achieved or maintained. As a result,
carbon and/or varnish build-up will occur and lubricating oil will become contaminated with
combustion by-products.
Cold weather operations place added demands on a diesel engine. When operating in cold
climates (particularly in stop-and-go operations, PTO operations or periods of extended
engine idling), minimum operating temperature must be maintained to prevent engine
damage resulting from valve varnishing and carbon build-up.
Note:
Many accessories are available for cold weather operations. Refer to the
Maintenance
and Lubrication Manual
for additional information concerning cold weather accessories.
Summary of Contents for CHM 2010
Page 2: ......
Page 8: ......
Page 25: ...SAFETY INFORMATION 17 Advisory Label Locations On Vehicle Labels Found on Chassis C0032631...
Page 26: ...18 SAFETY INFORMATION W8061742...
Page 27: ...SAFETY INFORMATION 19 C0032633...
Page 28: ...20 SAFETY INFORMATION W8061397...
Page 29: ...SAFETY INFORMATION 21 Labels Found on Driver Side Sun Visor W8061402...
Page 35: ...SAFETY INFORMATION 27 C0032643...
Page 37: ...SAFETY INFORMATION 29 C0032645...
Page 47: ...INSTRUMENTS AND CONTROLS 39 INSTRUMENT PANEL GAUGE LAYOUT C0032654...
Page 76: ...68 INSTRUMENTS AND CONTROLS C0032684...
Page 107: ...OPERATION 99 W4059732 Control Switch W4059733 Mode Switch...
Page 160: ...152 OPERATION C0032897...
Page 166: ...158 OPERATION C0032898...
Page 192: ...184 Mack Emissions Solution W8056653...
Page 207: ...MAINTENANCE AND LUBRICATION 199 C0032899 C0032900 1 Towhook Access...
Page 218: ...210 MAINTENANCE AND LUBRICATION ELECTRICAL Circuit Breaker and Relay Panels C0032908...
Page 232: ......