Chevrolet 10 Series 1970 Service Manual page 544

WHEELS AND TIRES 10-14
F ig . 17— P o sitio n in g Rim in to Rim G u tte r
F ig . 18— Engaging Side Ring o ve r Rim G u tte r
F ig . 19—C h e c k in g Side Ring fo r Bind on Rim
section, thereby engaging side rin g o v e r rim gutter
at these points.
10. R em ove tool and strik e additional blow s p r o g r e s ­
s iv e ly tow ard other cutaway section until en tire toe
of side rin g has passed o v e r the rim gutter.
11. W h ile the side ring is being applied to the wheel rim ,
it is tight and req u ires fo r c e o r ham m er blows to
com plete the application. When the side rin g is co m ­
p le tely installed on the rim , it is no lo n ger tight and
can be dep ressed o r w ill y ie ld to a light ham m er
blow . Precaution should be taken to see that the side
rin g is not binding on the rim and can be fr e e ly de­
p ressed (fig . 19) b efo re inflating the t ir e .
Installing Synthetic Tubes
1. B e fo re installin g tube in t ir e , clean inside of casing
thoroughly.
2. In sert tube in t ir e
rounded out.
3. Inspect rim fo r rust scale and bent fla n g e s — clean
rust sca le and straighten flan ges w here n ecessa ry.
4. Using a brush o r cloth swab, apply a solution of
neutral vegetable o il soap to the inside and outside of
t ir e beads and also to the rim side of the tube.
not allow soap solution to run down into t ir e .
5. When mounting t ir e and tube on a drop cen ter rim ,
fo llo w the standard p roced u re.
te re d on rim so that beads a re out of rim w ell b efo re
inflating. Do not allow t ir e to hang lo o se ly on wheel
w hile inflating.
6 . C enter v a lv e and pull it fir m ly against the rim .
in this position and inflate until t ir e beads are fir m ly
seated on rim against flan ges.
7. C om pletely deflate t ir e by rem oving va lv e c o re .
8. R ein flate t ir e to recom m ended p ressu re.
C A U TIO N : When tube and flap a re not p ro p erly
lu bricated and mounted, they w ill stretch thin
in the t ir e bead and rim region .
prem atu re fa ilu r e .
Tubeless Tires
Tu b eless t ir e s mounted on one piece full drop center
rim s a re standard on som e C h evrolet trucks.
tir e s have a safety inner lin e r which if punctured, tends
to clin g to the penetrating object fo rm in g a p a rtia l seal
until the object is rem oved fro m the t ir e .
T h e mounting and demounting of tubeless truck t ir e s
w ill present no p roblem when a rubber lubricant, such as
Ru-G lyde o r equivalent is applied to t ir e beads and rim
fla n ges. Ru-G lyde o r equivalent in addition to m a teria lly
assistin g in mounting and demounting also p reven ts ru st­
ing at the t ir e sealin g area and thus preven ts t ir e s fro m
adhering to the wheel.
Demounting and M ounting
A ll tubeless tir e s used on C h evrolet trucks with the
exception of the 7.75-15 and 6.50-16 s iz e s should be d e ­
mounted and mounted as d escrib ed in this section.
7.75-15 and 6.50-16 s iz e s
presen t t ir e machines o r standard t ir e iron s follo w in g
the same p rocedu re em ployed in s ervicin g tube type
tir e s .
CA UTIO N: A ham m er,
edges, should n ever be used to demount o r mount
tubeless t ir e s as damage to rim flange o r t ir e
sealing bead may resu lt.
and inflate until it is n early
Be sure t ir e is cen­
Hold
T h is w ill cause
T h ese
may be demounted using
o r tools with sharp
CHEVROLET TRUCK SERVICE MANUAL
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