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
Instruments and Controls Operating Instructions
– 34 –
PB1318 3/01 Model 330
2. Shift the transmission into its PARK position. (See Pages
65
and
72
for transmission shifting and parking brake
information.)
3. Turn the key to OFF.
4. Remove the key.
WARNING! Do not pull out the parking brake
valve while the vehicle is moving. Stopping with
the parking brake controls can cause a sudden
wheel lock-up, loss of control, or over-take by
following vehicles. You could be severely
injured.
See
“Using the Brake System” on page 70
for more infor-
mation.
- for trucks with hydraulic brakes:
The parking brake consists of a driveline drum brake actu-
ated by a lever and cable. The hand lever, mounted on the
vehicle’s cab floor, pulls or releases the cable controlling the
brake. Pulling upward on the parking brake lever pulls the
cable and expands the driveline brake shoes outward against
the driveline brake drum.
The driveline brake is disengaged by pushing the handle
downward to its lowest position.
NOTE: Failure to fully release the parking brake can
cause the brakes to overheat.
CAUTION: Unless it is an emergency, do not pull
upward on the parking brake lever while the
vehicle is moving. Attempting to stop with the
parking brake could cause damage to the drive-
line, transmission, or the parking brake mecha-
nism itself.
Combination (Tractor/Trailer) Parking Brake Control Valves
(2) Trailer Air Supply
Control (Red)
(1) Parking Brake Control
(Yellow)
02394










