Operation and maintenance manual

SM 1382 Rev 1 03-05
Section 160-0050
5
Rear Axle Group - Wheel Rim and Tyre
C.
Be sure to thoroughly flush and blow off all
flammable solvents used for cleaning the air
compressor inlet screen before using the
compressor for tyre inflation, or any other
purpose.
D.
Do not charge batteries, either in or out of a
machine, near the air inlet of a compressor
used for inflating tyres. Charging batteries
produces highly explosive hydrogen gas
which can be readily drawn into a nearby
compressor inlet and pumped into the tyre.
E.
Never exceed the specified concentration of
alcohol when adjusting the alcohol vaporizer,
or adding alcohol to the auxiliary air tank, used
on machine air systems to prevent freezing or
moisture condensate in below-freezing
temperatures. Excessive alcohol, added to the
machines air tanks in this manner can produce
flammable vapours that will be pumped into a
tyre when this air supply is used for tyre
inflation if the tyre inflation kit is not equipped
with a moisture filter. Alcohol added to
machine air systems in recommended
concentration to prevent condensate freezing
are below hazardous levels for tyre inflation.
F.
Another source of hazardous flammable
vapours in tyres is the tyre bead lubricant.
Always use bead lubricants that do not
introduce flammable vapours into the tyre.
Inflation
Note: Always use tyre inflation equipment with an air
filter that removes moisture from the air supply, when
available, to prevent moisture corrosion of internal rim
parts.
1. Inflate tyre to 1 bar (15 lbf/in²) initially to seat
components and tap lock ring lightly to ensure correct
seating. Visually check that all components are in
place, then continue inflation observing all safety
precautions. (See Step 2).
2. If the tyre is off the machine, place it in a safety
cage after initially inflating to 1 bar (15 lbf/in²) to seat
components. See Fig. 6.
2. Install wheel nuts (9) on wheel studs. Gradually
tighten nuts opposite each other until all nuts are snug.
Torque tighten wheel nuts (9) to 540 Nm
(400 lbf ft). Torque tighten wheel nuts (9) again, after
10 hours of machine operation.
TYRE INFLATION
WARNING
To prevent personal injury and property
damage, the tyre and rim assembly should be
placed in a safety cage before inflating. If no
safety cage is available or tyre is on the
machine, the tyre and rim assembly should be
wrapped with safety chains or with lash cables
before inflating.
Even with these precautions remember that
air-blast is a potential hazard. Tyre inflation
should be carried out away from busy working
areas.
WARNING
To avoid personal injury and property damage,
never stand or sit in front of a mounted tyre
during tyre inflation. Use a clip-on air chuck
with a long hose and stand to one side while
the tyre is being inflated.
WARNING
To prevent personal injury and property
damage, always prevent flammable vapours
that could produce tyre explosions, from being
pumped into tyres during inflation, by
observing the following precautions:
A.
Use an air compressor and reservoir located
inside a heated building, when available, so
that alcohol, methanol, or other flammable
antifreeze liquids are not needed in the air
tanks to prevent moisture freezing in the tank
and lines in subfreezing outside temperatures.
B.
Make sure that paints, lacquers, paint thinners,
or similar materials that produce volatile,
flammable vapours are not used or stored near
the air intake of the compressor that supplies
the air for inflating tyres. The compressor
should be isolated from all such sources of
flammable vapours.