Chevrolet 10 Series 1968, Service Manual, Page: 565 / 713

WHEELS AND TIRES 10-14
Fig . 15—Loosening Tire Bead
Fig . 17—Positioning Rim into Rim G utter
F ig . 16—Positioning Side Ring
Two Section Rim s—M ounting Tire
1. Remove all rust scale from wheel rim and side ring.
2. Insert tube in tire and inflate until tube is nearly
rounded out.
3. Lubricate tire beads, rim sides of tube and both
sides of flap with a solution of neutral vegetable soap
or Ru-Glyde or equivalent rubber lubricant. Insert
flap in tire.
4. Place disc portion of wheel on floor with rim gutter
up and install tire and tube assembly indexing tube
valve stem with stem support in wheel rim and with
valve stem pointing in desired direction.
5. Place side ring in position with operating notch “ B”
(fig. 16) approximately three inches from valve on
either side.
6 . The two cutaway sections opposite each other “ A ”
(fig. 17) on inner diameter of side ring are positioned
so as to span the rim gutter.
7. At point
“ C ”
opposite valve, force ring into rim gut­
ter as far as possible.
8
. Insert straight end of tire iron into operating notch
“ B” (fig. 18). Then pull in direction indicated.
F ig . 18—Engaging Side Ring over Rim G utter
9. Retain pressure with tool and strike side ring down­
ward at a point between operating notch and cutaway
section, thereby engaging side ring over rim gutter
at these points.
10. Remove tool and strike additional blows progres­
sively toward other cutaway section until entire toe
of side ring has passed over the rim gutter.
11. While the side ring is being applied to the wheel rim,
it is tight and requires force or hammer blows to
complete the application. When the side ring is com­
pletely installed on the rim, it is no longer tight and
can be depressed or will yield to a light hammer
blow. Precaution should be taken to see that the side
ring is not binding on the rim and can be freely de­
pressed (fig. 19) before inflating the tire.
CHEVROLET TRUCK SERVICE MANUAL