11-04-1
Wheels and Tires—Three-Piece Rims
11-04-1
PART 11-04 Wheels and Tires- Three-Piece Rims
Applies to All 500-9000 Series Vehicles
COMPONENT INDEX
TIRE REMOVAL
AND MOUNTING-
Three-Piece Rims
Page
04-1
COMPONENT INDEX
TIRE REMOVAL
AND MOUNTING-
Cast Spoke Wheels
Page
04-02
DESCRIPTION
Three-piece rims are used on disc and
cast wheels. Fig. 1 shows a dual wheel
sectional view.
Demountable rims for cast-spoke
wheels are secured by a ramp at the back
edge of each spoke, together with a lug
retained by a stud and nut at the edge of
each spoke. Refer to Part 11-01 for safety
procedures and illustrations.
WHEEL ASSEMBLY
WHEEL RIM LOCK RING
FLANGE
3-PIECE RIM, DUAL WHEELS
FIG.
1 Three-Piece Rim—Dual Wheel Sectional View
F1806-
A
FIG.
4.
REMOVAL AND INSTALLATION
The tire must be completely deflated
before removal, and the bead must not be
damaged by a tire iron.
After installation, a tube tire should
be inflated to recommended pressure,
deflated, and then inflated again to insure
that the tube is not folded inside the tire.
Be sure the tube flap is properly
positioned before inflating the tire.
TIRE REMOVAL AND
MOUNTING—THREE-PIECE RIM
Tire mounting procedures are the
same for disc wheels and for cast wheels
equipped with the three-piece rims.
However, cast wheels require special final
centering and runout adjustment.
Removing Tire from Wheel
1.
Place the wheel and deflated tire on
the floor, with the ring up.
2.
Insert the straight end of the rim tool
in the locking ring depression and
loosen the tire bead by pressing down
on the side ring (Fig. 2).
3.
Insert the straight end of the rim tool
in the notch provided in the locking
ring, and pry the locking ring out of
the gutter (Fig. 2).
F1461-A
2 Loosening Tire Bead and
Locking Ring—Three-Ring Rim
Lift out the locking ring, and remove
the slide ring (Fig. 3).
F1462-A
FIG.
3 Removing Locking Ring and
Positioning Locking
Ring—Three-Piece Rim
5.
Turn the wheel over and loosen the
tire bead from the rim by driving the
hooked end of the rim tool between
the rim flange and the tire bead.
6. Pry the tire bead away from the taper
all around the rim until tire is free and
remove the tire.
Mounting Tire to Wheel
1.
Position the wheel (gutter side up) on
the floor. Soap both beads of the tire
and position the tire on the rim.
2.
Position the solid side ring on the tire
and insert the tapered toe of the split
locking ring between the rim and the
side ring (Fig. 3).
3.
Using a soft hammer, drive the
locking ring into place (Fig. 4). Start
at one end of the split ring and
progressively drive the ring into the
gutter until the entire ring is seated
(Fig. 4).
F1463-A
FIG.
4 Starting Locking Ring and
Locking Ring
Installed—Three-Piece Rim
The ring must be entirely seated
around the entire circumference of the
rim.
The split ends must be engaged in the
gutter, or the ring will be forced off
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