Operation and maintenance manual

Rear Axle Group - Wheel Rim and Tyre
4
Section 160-0050
SM 1382 Rev 1 03-05
SM - 207
soft hammer to rotate lug. Use bar for installing lock
ring, as illustrated in Fig. 5.
8. Force bead seat band (3) past 'O' ring groove in
wheel rim (5) by prying, or with lift truck forks. Use
blocking between the forks and tyre to prevent
damage. Insert a new 'O' ring (2, Fig. 1) in groove of
the rim behind lock ring (4). Lubricate area of front
taper of bead seat band adjacent to 'O' ring, with a thin
solution of soap and water or another approved
lubricant which is not harmful to rubber. Avoid using an
excessive amount of lubricant.
9. Install driver (2). Make sure all rim components are
correctly assembled.
10. Lift the tyre upwards to effect a seal between bead
seat band (3) and 'O' ring (2, Fig. 1). In some cases
the tyre will automatically spring out, making this step
unnecessary.
11. Refer to 'Tyre Inflation' in this section for the proper
procedure for inflating the tyre.
MOUNTING TYRE AND RIM ASSEMBLY
ON MACHINE
Numbers in parentheses refer to Fig. 1.
WARNING
When jacking, lifting, or blocking the machine,
be sure the equipment is of sufficient capacity
to do the job safely.
1. Support tyre and rim assembly with a chain, or rope
sling. Attach sling to overhead lifting device. Slide
assembly on to wheel of machine, with lock ring (4)
and bead seat band (3) facing outward.
Clean all rust and dirt from the rim parts and wheel
and apply a coat of good grade primer paint. Allow the
paint to dry thoroughly before remounting tyre.
The rim parts used with tubeless tyres form an
important part of the air chamber. Therefore, they
should be carefully checked for distortion or mutilation
that would prevent an effective air seal when the tyre
and rim are reassembled.
Rubber 'O' rings are air seals for tubeless tyre and rim
assemblies and therefore should be carefully handled
to provide an airtight seal when the tyre is remounted
on the rim. Always use new 'O' rings when mounting a
tubeless tyre.
Note: Handle 'O' rings carefully, as damage will
prevent an airtight seal for tyre inflation.
MOUNTING TYRE ON RIM
Numbers in parentheses refer to Fig. 2, unless
otherwise specified.
For mounting a tyre with rim on or off machine, the
procedure is basically the same.
WARNING
When lifting tyre onto rim, be sure the
equipment is of sufficient capacity and
properly secured to do the job safely.
1. For off-machine installation, lay rim on blocks or
mounting stand with 'O' ring groove up. Rim should be
off floor enough to allow tyre to rest on rim and not on
floor. Blocks are not to extend more than 13 mm
(0.50 in) beyond rim base.
2. If removed, install inner flange (6) over wheel rim (5).
3. Lubricate tyre beads and 'O' ring, with a thin solution
of vegetable base soap and water.
4. Using suitable lifting equipment, lower tyre onto rim.
Seat tyre firmly against inner flange (6).
5. Install outer flange (1) on rim (5).
6. Align lock ring driver notch in bead seat band (3)
with notch in wheel rim (5) and install bead seat band
on rim.
7. Install lock ring (4) in groove of wheel rim (5) so that
lock ring lug engages both notches. Notches and lock
ring lug must line up correctly. If necessary, use only a
Fig. 5 - Installing Typical Lock Ring
2 - Drive Lug
1 - Lock Ring