Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors
Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors Peterbilt Medium Duty Truck Owner's Manual - Peterbilt Motors
OPERATING THE TRANSMISSION • Upshifts: let the engine and gears slow down to the rpm required for the next gear. • Downshifts: press accelerator, increase engine and gear speed to the rpm required in the lower gear. 4. Now quickly press the pedal to disengage the clutch and move the gear shift lever to the next gear speed position. 5. Release the pedal to engage the clutch. More Transmission Tips “Riding” the Clutch The clutch is not a footrest. Do not drive with your foot resting on the clutch pedal. It will allow your clutch to slip, causing excessive heat and wear—damage could result. Release Bearing Wear When you must idle your engine for any period of time, shift your transmission to Neutral and disengage the clutch (take your foot OFF of the pedal). This helps prevent unnecessary wear to your clutch release bearing, and it is less tiring for you, too. STARTING AND OPERATING THE VEHICLE Clutch Adjustment Inspect manual clutches according to the manufacturer's recommendations. Regular maintenance should be followed to maintain correct clutch adjustment. Have your dealer's Service Department perform any adjustment necessary. Tips • Always use the clutch when making upshifts or downshifts. • Always select a starting gear that will provide sufficient gear reduction for the load and terrain. • Never downshift when the vehicle is moving too fast. • Never slam or jerk the shift lever to complete gear engagement. • Never coast with the transmission in Neutral and the clutch disengaged. • To provide smooth gear engagements while shifting, use proper coordination between shift lever and clutch. – 102 – Y53-6027 Medium Duty (R05/09)
STARTING AND OPERATING THE VEHICLE Operating Automatic Transmissions An automatic transmission makes shifting much easier, however it is important to understand how to operate the transmission efficiently. Please read the transmission manufacturer’s operation manual supplied with your vehicle. OPERATING THE TRANSMISSION There may not be a “park” position with your automatic transmission. Always be sure you apply the parking brake before leaving the cab. WARNING! Do not leave the cab of your vehicle without applying the parking brake. The truck could roll and cause an accident resulting in death or personal injury. Always apply the parking brake before you leave the cab. Medium Duty (R05/09) Y53-6027 – 103 –
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STARTING AND OPERATING THE VEHICLE<br />
Operating Automatic Transmissions<br />
An automatic transmission makes shifting much easier,<br />
however it is important to understand how to operate the<br />
transmission efficiently. Please read the transmission<br />
manufacturer’s operation manual supplied with your vehicle.<br />
OPERATING THE TRANSMISSION<br />
There may not be a “park” position with your automatic<br />
transmission. Always be sure you apply the parking brake<br />
before leaving the cab.<br />
WARNING! Do not leave the cab of your vehicle<br />
without applying the parking brake. The truck<br />
could roll and cause an accident resulting in<br />
death or personal injury. Always apply the parking<br />
brake before you leave the cab.<br />
<strong>Medium</strong> <strong>Duty</strong> (R05/09) Y53-6027 – 103 –
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