Chevrolet 10 Series 1970, Service Manual

Page: 546 / 671

WHEELS AND TIRES 10-16
F ig . 24 — L u b ric a tin g T ire Bead
F ig . 2 5 —W o rk in g Bead o n to Rim
sm all b ites until bead slip s o v e r flange onto rim
base. If n ecessary, in sert second t ir e iron and
lu bricate last 6" of bead b e fo re com pleting mounting
(fig . 26).
4. Check v a lv e to be certain that hex nut at the va lve
base is tight. Inflate t ir e to recom m ended operating
p ressu re. Check assem bly fo r a ir leaks.
M ounting (7 .7 5 -1 5 and 6 .5 0 - 1 6 tires)
1. U se presen t tir e machines o r standard t ir e iron s f o l ­
low ing the same p rocedu re used in mounting tube
type t ir e s , how ever, extrem e c a re must be e x e rc is e d
to preven t injury to the sealin g bead when fo rcin g
tir e o v e r the rim . A slight application of rubber lu ­
bricant on the last 1/2 of each bead c ir c le to be
mounted w ill ease mounting.
2. W ith tir e beads s till unseated, rotate t ir e on wheel
so that balance m ark on t ir e lin es up with the va lve
stem.
3. Start t ir e beads into the rim bead seats as fo llo w s:
If a tir e mounting machine is being used, lift the t ir e
high in the rim fo rcin g the top t ir e bead against the top
rim flange seating the top bead.
The lo w er bead w ill be
seated by the t ir e weight.
When a t ir e mounting machine is not being used, beads
may be seated by holding the t ir e and wheel assem bly in
a v e rtic a l position and bouncing on the flo o r at variou s
points about the t ir e circu m feren ce.
4. Install va lv e c o re and inflate tir e with quick ’ ’shots"
of a ir to fir m ly seat the sealing beads.
5. Check assem bly fo r a ir leaks, then reduce t ir e p r e s ­
sure to that recom m ended fo r v e h icle operation.
F ig . 2 6 —W o rk in g Second Bead o n to Rim F ig . 2 7 — RHP C on tin u o u s Side Ring
CHEVROLET TRUCK SERVICE MANUAL