User Manual
Table Of Contents
- Safety
- Emergency
- Controls
- Entering and Leaving the Vehicle
- Doors
- Electrically Operated Windows
- Heated Mirrors
- Mirrors
- Electrical Mirror Adjustment
- Windshield Wiper Blades
- Roof Console
- Sun Visors
- Stepwell Lighting
- Interior Lighting
- Dashboard
- Control Panel
- Control Panel of Heating/Ventilation System
- Air Conditioning Switch
- Fan Speed Selector Switch
- Temperature Adjustment
- Air Distribution Selector Switch
- Center Console
- Left-Hand Steering Column Switch
- Right-Hand Steering Column Switch
- Steering Wheel Switches
- Adjustable Steering Column
- Seats
- Master Display
- PDC and Voltage Display
- Power Distribution Center (PDC)
- Voltage Converter
- Driving
- General
- Steering Lock/Contact/Starter Switch
- Glow System
- Starting Procedure
- Engine Speed Control
- Cruise Control
- Adaptive Cruise Control (Optional)
- Vehicle Speed Limitation for Special Applications
- Driving Style
- Steering
- ABS Brakes
- Park Brake and Service Brake
- Engine Brake
- Stopping
- Allison Automatic Gearbox
- Maintenance
- Introduction
- Air Dryer
- Overhaul
- Air Tanks
- Air Gauges and Air Leaks
- Air Compressor
- Overview of Daily Checks
- Opening the Front Panel
- Engine Oil Level
- Topping Up Coolant
- Special Coolant Fill Instructions
- Windshield Washer Reservoir Fluid Level
- Air Filter Indicator
- Wheels and Tires
- Lighting and Instruments
- Driver's Seat and Mirrors
- Overview of Weekly Checks
- Power Steering Fluid Level
- Brake System Air Drier
- Draining the Water Separator
- Batteries
- General Maintenance
- Cab Maintenance
- Cleaning
- Preventative Maintenance before the Winter Season
- Diesel Fuel
- Windshield Washer Reservoir
- Maintenance after the Winter Season
- Cooling System
- Information
- Glossary
- Index
WARNING
Completely bypassing a Bendix®
ADIS air dryer will bypass the system’s
pressure protection valves. This could
lead to loss of air pressure or damage
to the vehicle’s air system, which could
cause an accident involving death or
personal injury. Always adhere to the
manufacturer’s procedure if it is nec-
essary in an emergency to temporarily
bypass an ADIS series air dryer. Fail-
ure to comply may result in death, per-
sonal injury, equipment or property
damage.
The operation of the vehicle's braking
system and many vehicle accessories
depends upon the storage and application
of a high-pressure air supply.
Your vehicle's compressor takes outside air
and compresses it, usually to 100-120 psi
(689-827 kPa). The compressed air then
goes to the reservoirs to be stored until
needed. When you operate your air
brakes, the stored compressed air flows
into the chambers where it is used to apply
your brakes. That is why, when you push
down on your brake pedal, you don't feel
the same amount of pressure on the pedal
that you do when you apply the brakes on
your car. All you are doing on your truck is
opening an air valve to allow air to flow into
the brake chambers.
Contamination of the air supply system is
the major cause of problems in air-
operated components such as brake
valves, and suspension height control
valves. To keep contaminants to the lowest
possible level, follow these maintenance
procedures.
WARNING
If the air tanks are not drained at the
recommended frequency, water could
enter the air lines and valves. This
could cause corrosion or blockage,
which could compromise the brake
system safety and potentially cause an
accident involving death or personal
injury.
Daily
• Drain moisture
from the air tanks.
• Operate air
devices to circulate
lubricants within
the unit.
Periodically
• Clean filter screens
ahead of the
valves by removing
the screens and
soaking them in
solvent. Blow them
dry with
pressurized air
before reinstalling
them.
Twice a
Year
• Maintain the air
compressor to
prevent excessive
oil by-pass. See
your maintenance
manual for details.
• Replace worn
seals in valves and
air motors as they
are needed.
MAINTENANCE - Introduction
98 Y53-6078-1B1 (12/18/18)
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