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
Steering and Driveline Preventive Maintenance
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PB1318 3/01 Model 330
STEERING AND DRIVELINE
Power Steering
Oil (under low pressure) provides the power to operate the
steering gear. It also serves to lubricate moving parts and
remove heat. A loss of steering efficiency will occur if too
much heat builds up in the system.
WARNING! Do not operate the vehicle if the
steering system is not working properly. You
could lose control of your vehicle if the steering
system is not in good working condition, which
could result in a serious injury accident. For
driving safety, visually check the steering gear
and components. Frequent checks are impor-
tant for driving safety, especially after traveling
over rough roads.
NOTE: If the steering feels unbalanced from side-to-
side while turning, check for the following possible
causes:
• unequal tire pressures
• vehicle overloaded or unevenly distributed load
• wheels out of alignment
• wheel bearings improperly adjusted
If you cannot correct the problem, check with an Authorized
Service Center.
The Model 330 is equipped with integral power steering. The
system includes an engine-driven fluid pump, a fluid reser-
voir, the steering gear, and connecting hoses. Because of the
hydraulic power assist, little effort is required to turn the
steering wheel. When no input is applied through the steer-
ing wheel, the steering gear will return to the neutral position.
If, for any reason, the power assist system goes out, steering
the vehicle is still possible—yet it will require much greater
effort.
Visually check the following parts:
• Crosstube: Is it straight?
• Draglink tube clamp: Check for looseness or interfer-
ence.
• Ball joints and steering U–joints: Check for looseness.
• Steering wheel for excessive free-play. Check the sim-
plest probable causes first:
– unequal tire pressures
– loose cap nuts
– bent crosstube
– lack of lubrication










