Chevrolet 30 Series 1967 Service Manual page 482

WHEELS AND'TIRES 10-8
F ig . 14- Loosening Tire Bead
Fig. 15 - Positioning Side Ring
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 M
(fig. 15) approximately three inches from valve on
either side.
6. The two cutaway sections opposite each other "A"
(fig. 16) 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. 17). Then pull in direction indicated.
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.
Fig. 16- Positioning Rim into Rim G u tte r
Fig. 17 - Engaging Side Ring O v e r Rim G u tter
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. 18) before inflating the tire.
Installing Synthetic Tubes
1. Before installing tube in tire, clean inside of casing
thoroughly.
2. Insert tube in tire and inflate until it is nearly
CHEVROLET TRUCK SERVICE M ANUAL