1996 CHEVROLET ASTRO wheel alignment

Tire Inspection and Rotation
Tires should be inspected every 6,000 to 8,000 miles
(10 000 to 13 000 km) for any signs of unusual wear.
If unusual wear is present, rotate your tires as soon as
possible and check wheel alignment. Also check for
damaged tires or wheels. See “When It’s Time for New
Tires” and “Wheel Replacement” later in this section for
more information.
The purpose of regular rotation
is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See “Scheduled
Maintenance Services” in the Index for scheduled
rotation intervals. When
rotating your tires, always use the correct rotation
pattern shown here.
Don’t include the compact spare tire in your tire rotation. \
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the
CertificatiodTire label. Make certain that all wheel nuts
are properly tightened. See “Wheel
Nut Torque” in
the Index.
’ A CAUTIO1
Rust or dirt on a wheel, or on the parts to which
it
is fastened, can make wheel nuts become loose
after a time. The wheel could come
off and cause
an accident. When you change a wheel, remove
any rust or dirt from places where the wheel
attaches to the vehicle. In an emergency, you can
use a cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later,
if you
need to, to get all the rust or dirt
off. (See
“Changing
a Flat Tire” in the Index.)

Traction -- A, B, C
The traction grades, from highest to lowest, are A, B,
and C, and they represent the tire’s ability to stop on wet
pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based
on braking (straightahead) traction tests and does not
include cornering (turning) traction.
Temperature -- A, B, C
The temperature grades are A (the highest), B, and C,
representing
the tire’s resistance to the generation of
heat and its ability
to dissipate heat when tested under
controlled conditions
on a specified indoor laboratory
test wheel. Sustained high temperature can cause
the
material of the tire to degenerate and reduce tire life, and
excessive temperature can lead
to sudden tire failure.
The grade
C corresponds to a level of performance
which all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard
No. 109. Grades
B and A represent higher levels of performance on the
laboratory test wheel than the minimum required by law.
Warning: The temperature grade for this tire is
established for a tire that
is properly inflated and not
overloaded. Excessive speed, underinflation, or excessive loading, either
separately or in combination.
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory
to give you the longest tire life
and best overall performance.
In most cases, you will
not need to have your wheels
aligned again. However, if
you notice unusual tire
wear or your vehicle pulling one way or the other, the
alignment may need to be reset.
If you notice your
vehicle vibrating when driving
on a smooth road, your
wheels may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose,
the wheel,
wheel bolts and wheel
nuts should be replaced. If the
wheel leaks air, replace
it (except some aluminum
wheels, which can sometimes be repaired). See your
GM dealer if any of these conditions exist.
Your dealer will know
the kind of wheel you need.
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the
same way as
the one it replaces.
6-47

. .. I. .
Section 9 Index
Accessory'power Outlet ......................... 2-49
Add-on Equipment
............................. 4-28
AirBag
....................................... 1-24
Adding Equipment
............................ 1-30
How Does it Restrain
.......................... 1-28
How it Works
................................ 1-26
Location
.................................... 1-26
Readiness Light
......................... 1.25. 2.54
What Makes it Inflate
.......................... 1-27
What Will
You See After it Inflates .... : .......... 1-28
When Should it Inflate
......................... 1-27
Aircleaner
.................................... 6-19
Air Conditioning
................................ 3-5
Air Conditioning Refrigerants
..................... 6-68
Alignment and Balance. Tire
...................... 6-47
All-Wheel Drive
.......................... 2.21. 6.23
Aluminum Wheels. Cleaning
....................... 6-55
Antenna. Fixed
................................. 3-28
Antifreeze
...................................... 6-25
Anti-Lock
Brake System Warning Light
................ 2-57. 4-6
Brakes
...................................... 4-6
knti-Theft. Radio
.............................. 3-23
Appearance Care
............................... 6-49
Appearance Care Materials
....................... 6-58
Arbitration Program
.............................. 8-7
Servicing
................................... 1-29
Ashtrays
...................................... 2-48
Audio Equipment. Adding
. : ...................... 3-2t
Automatic Audio Systems
.................................. 3-8
Transmission Check
........................... 7-42
Transmission Operation
........................ 2-18
Axle Front
....................................... 6-24
LockingRear
................................ 2-21
Rear
....................................... 6-25
Battery
...................................... 6-35
Jump Starting
................................. 5-2
Replacement. Remote Keyless Entry ............... 2-8
Warnings
...................................... 5-2
BBB Auto Line ................................. 8-7
Better Business Bureau Mediation
................... 8-5
Brake
Adjustment
...................... ........... 6-35
Fluid
..................................... ;.6-32
Master Cylinder
.............................. 6-32
Parking
..................................... 2-21
PedalTravel .................................. 6-32
Replacing System Parts
........................ 6-32
Trailer
...................................... 4-3:
Transmission Shift Interlock Check
............... 7-42
Wear
............................. : ......... 6-3'
9-1

Tire Loading ............................... 4-26
Alignment and Balance
........................ 6-47
Buying New
................................. 6-45
Chains
..................................... 6-49
Changing a Flat
.............................. 5-23
Cleaning
.................................... 6-56
Compact Spare
............................... 5-36
Inflation
.................................... 6-43
Inflation Check
............................... 7-41
Inspection and Rotation
........................ 6-44
Loading
.................................... 4-26
Pressure
.................................... 6-43
Temperature
................................. 6-47
Traction
.................................... 6-47
Treadwear
................................... 6-46
Uniform Quality Grading
....................... 6-46
Wear Indicators
.............................. 6-45
When It's Time for New
....................... 6-45
TopStrap
..................................... 1-42
TorqueLock
................................... 2-24
Tire-Loading
Information Label
................... 4-26
Tires
......................................... 6-42
Wheel Replacement
........................... 6-47
Torque. Wheel
Nut ......................... 5-33. 6-67
Towing
a Trailer ................................ 4-29
Towing Your Vehicle
............................. 5-6
Driving on Grades ............................ 4-35
Trailer
Brakes
..................................... 4-33
Drivingwith
................................. 4-33
Hitches
..................................... 4-32
Maintenance When Towing
..................... 4-36
Parking
on Hills .............................. 4-36 Safety
Chains
................................ 4-32
Tongueweight
............................... 4-31
Total Weight on Tires
.......................... 4-32
Towing
..................................... 4-29
Turnsignals
................................. 4-35
Weight
..................................... 4-30
Wiring Harness
............................... 4-37
Transmission Fluid. Automatic
.................... 6-20
Transmitters. Keyless Entry
........................ 2-7
Transportation. Courtesy
.......................... 8-6
Trip Odometer
................................. 2-53
TTY Users
..................................... 8-3
Turn Signal and Lane Change Signals
............... 2-30
Turn Signal/Multifunction Lever
................... 2-29
Turn Signals When Towing
a Trailer ................ 4-35
Two-way Manual Seat
........................... 1-2
Underbody 'Maintenance ....... ........... 6-56
Underhood Electrical Center
...................... 6-64
Vehicle Control
...................................... 4-5
Damage Warnings
.............................. iv
Dimensions ................................. 6-69
Identification Number
......................... 6-59
Loading .................................... 4-26
Storage
..................................... 6-36
Ventilation System
............................... 3-6
Visor Vanity Mirrors
............................ 2-49
Visors. Sun
.................................... 2-49
Voltmeter
................................. 2-55
9-9

warning Devices ........................... 5-1
Warning Lights. Gages and Indicators ............... 2-53
Washer Fluid. Windshield
........................ 6-3 1
Washing Your Vehicle ........................... 6-54
Weatherstrips
.................................. 6-54
Wheel Alignment
.................................. 6-47
Nut Torque
............................. 5-33. 6-67
Replacement
................................. 6-47
Wrench
..................................... 5-25
Windows
..................................... 2-27
Express-Down
............................... 2-28
Power
...................................... 2-27
Swing-Out
.................................. 2-28 Windshield Washer
............................. 2-31
Fluid
....................................... 6-31
Fluid Level Check
............. .............. 7-41
Rear
....................................... 2-32
Windshield Wipers
.............................. 2-31
Blade Replacement
........................... 6-42
Fuses
...................................... 6-60
Rear ....................................... 2-32
Winter Driving
................................. 4-22
Wiring. Headlamp
.............................. 6-60
WreckerTowing
................................. 5-6
Wrench. Wheel
................................. 5-25
9-10