MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

More Driving Tips and Techniques
Operating Instructions
ENGINE
MODEL /HP*
OPTIMUM
OPERATING
RANGE (rpm)
CUMMINS ISC ENGINES
MAXIMUM GOVERNED SPEED
(rpm)
2000 2200
215 1300-2200 •
230 1300-2200 •
250
1300-2200 (1) •
1300-2000 (2) •
275 1300-2000 (2) •
285 1300-2000 (3) •
300 1300-2000 •
* For engine model, see Engine Operation and Maintenance Manual.
(1) 660 lb-ft torque rating
(2) 800 lb-ft torque rating
(3) 860 lb-ft torque rating
NOTE: Often these recommendations are secondary
to maintaining an adequate and safe speed relative
to the surrounding traffic and road conditions.
CAUTION: To avoid engine damage, do not let
the engine rpm go beyond the maximum governed
rpm—valve damage could result if overspeed
conditions occur.
Tachometer
Use of Tachometer
02586
The tachometer is an instrument that aids in obtaining the
best performance of the engine and manual transmission,
serving as a guide for shifting gears. Refer to the Engine
Operation and Maintenance manual for optimum engine rpm.
• If the engine rpm moves beyond the maximum governed
speed, indicating an overspeed condition, apply the service
brake or shift to a higher gear to bring engine rpm
within the optimum speed range.
– 98 – PB1318 3/01 Model 330