OPERATOR'S MANUAL
Table Of Contents
- How to Use This Manual
- Safety Signals
- Vehicle Safety
- How to Find What You Want
- A Special Word About Repairs
- Shop Manuals
- Preventive Maintenance Section
- Additional Sources of Information
- Start–Up
- Instruments and Controls
- Introduction
- Warning Lights and Buzzer
- Self Test
- Speedometer and Odometer
- Tachometer
- Coolant (Water) Temperature Gauge
- Engine Oil Pressure Gauge
- Dual Air Pressure Gauge (Air Reservoir)
- Fuel Gauge
- Voltmeter (option)
- Transmission Temperature Gauge (option)
- Air Filter Restriction Indicator (option)
- Headlight Switch
- Daytime Running Lights (option)
- Panel Lights
- ID and Clearance Lights
- Windshield Wipers/Washer
- Ignition Key Switch
- Parking Brake
- Cruise Control Switch
- Hand Throttle Control
- Heating and Air Conditioning
- Accessories
- Seats
- Steering Column and Mirrors
- Operating the Engine
- Operating the Transmission
- Using the Brake System
- Operating the Rear/Drive Axle
- More Driving Tips and Techniques
- Vehicle Recovery and Spring Brakes
- Shut–Down
- Introduction
- Maintenance Schedule and Lubrication
- Engine Maintenance
- Cooling System
- Brake System
- Air System
- Tires and Wheels
- Heater and Air Conditioner
- Electrical System
- Cab Maintenance
- Transmission and Clutch
- Steering and Driveline
- Front Axle and Suspension
- Rear Axle and Suspension
- Frame and Fifth Wheel
- Noise and Emission Control
- Consumer Information and Vehicle Identification
Operating Instructions Instruments and Controls
Model 330 PB1318 3/01
– 21 –
Tachometer
The vehicle’s tachometer measures the engine speed in rev-
olutions–per–minute (rpm). Watching the tachometer is
important to driving efficiently. It will let you match driving
speed and gear selection to the operating range of your
engine. If the engine speed gets too high, you can select a
higher gear to lower the rpm's. If the engine speed drops too
low, you can select a lower gear to raise the rpms. See
page
98
for further instructions on driving techniques and using the
tachometer.
• To avoid engine damage, do not let the pointer exceed
maximum governed speed. See
page 98
.
• When driving downhill, shift to a lower gear and use the
service brake, keeping the engine speed below the max-
imum governed speed.
The hour meter (option) records the time in hours the engine
is operating.
Tachometer
02586
HOURMETER
(OPTION)