Chevrolet 1977 light duty truck Service Manual page 329

T Y P I C A L W H E E L
M A X I M U M L O A D / M A X I M U M
\ / P R E S S U R E S T A M P
T Y P I C A L W H E E L
M
a x i m u m
M A X I M U M L O A D ,
S T A M P
Too low an air pressure
o verloading , a b n o rm a l
handling, and reduced fuel economy. The tire flexes
more a n d can build up excessive heat, w eakening the tire
and increasing susceptibility to dam age or failure. Too
high an air pressure can result in abnorm al wear, harsh
vehicle ride, and increased susceptibility to dam age from
road hazards. Lower inflation pressures should be used
only with reduced vehicle loads and the rear tire pressure
W H E E L C O D E
LETTERS
p r e s s u r e
O P T I O N A L L O C A T I O N S
F O R M A X I M U M L O A D /
Fig. 3--Wheel Code Location
can result in
tire wear, adverse vehicle
DUAL WHEEL
R I M S I Z E : D I A . X W I D T H
O P T I O N A L
L O C A T I O N S FO R
M A X I M U M L O A D /
SINGLE WHEEL
' M A X I M U M
PR ES SU R E S T A M P
R IM S I Z E : D I A . X W I D T H
tire
should be equal to or greater than the front pressure on
single wheel application. A fter determ ining the load on
each tire by weighing the vehicle on a scale, the correct
cold inflation pressures for the actual tire loads can be
obtained from the
Pressure C hart shown in this section.
Tire inflation pressures should be checked at least
monthly when the tires are "cold" and when changing
the load the vehicle is carrying.
/ M A X I M U M PR ES SU R E
S T A M P S
T ire /W h e el Load and Inflation