Peterbilt Medium Duty Trucks Operator's Manual after 1-07
Peterbilt Medium Duty Trucks Operator's Manual after 1-07
Peterbilt Medium Duty Trucks Operator's Manual after 1-07
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Driving Tips And Techniques<br />
• If the engine rpm moves beyond the maximum governed<br />
speed, indicating an overspeed condition,<br />
apply the service brake or shift to a higher gear to<br />
bring engine rpm within the optimum speed range.<br />
• When driving downhill: shift to a lower gear, use the<br />
engine brake (if so equipped), and use the service<br />
brake, keeping the engine speed below 2,100 rpm.<br />
When the engine speed reaches its maximum governed<br />
speed, the injection pump governor cuts off fuel to the<br />
engine. However, the governor has no control over the<br />
engine rpm when it is being driven by the vehicle's transmission,<br />
for example, on steep downgrades. Apply service<br />
brakes or shift to a higher gear.<br />
Fuel economy and engine performance are also directly<br />
related to driving habits:<br />
• The best results in trip time and fuel economy are<br />
obtained while driving the vehicle at a steady speed.<br />
Operating Instructions<br />
• Shift into higher or lower gears (or apply the service<br />
brake) to keep engine rpm near the lower end of the<br />
optimum operating range.<br />
• Avoid rapid acceleration and braking.<br />
WARNING! Do not exceed the specified load rating.<br />
Overloading can result in loss of vehicle<br />
control and serious personal injury, either by<br />
causing component failures or by affecting vehicle<br />
handling. Exceeding load ratings can also<br />
shorten the service life of the vehicle.<br />
•The components of your vehicle are designed<br />
to provide satisfactory service if the vehicle is<br />
not loaded in excess of either the gross vehicle<br />
weight rating (GVWR), or the maximum front and<br />
rear gross axle weight ratings (GAWRs). (Axle<br />
weight ratings are listed on the driver's door<br />
edge.)<br />
NOTE: For your safety and the safety of others, follow<br />
routine and periodic maintenance schedules for<br />
all components on your vehicle. See Table 3, “Maintenance<br />
Schedule,” Page 123<br />
– 100 – Y53-6008 <strong>Medium</strong> <strong>Duty</strong> (R10/06)