Terex TS14G, Maintenance Manual

Page: 113 / 376

SM 1721 Rev1 03-05
Section 160-0050
7
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.
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
Rear Axle Group - Wheel Rim and Tyre
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.
3. Inflate tyres to 5.2 bar (75 lbf/in²) to seat beads and
seal the 'O' ring, then adjust to the recommended
inflation pressure.
4. For recommended operating air pressure, refer to
chart under the heading, 'Tyre Inflation Pressures'.
NITROGEN TYRE INFLATION
Note: All Warnings and procedures under 'Tyre
Inflation' will apply, except for differences covered by
this passage.
In certain environments it is recommended that tyres
be inflated with dry nitrogen gas, and that the resulting
oxygen content of the inflation does not exceed 5%. All
machines whose tyres are factory inflated with dry
nitrogen gas will be identified by a decal on the body
or frame.
Nitrogen gas improves tyre pressure retention,
increases tyre life by reducing carcass oxidation from
within, minimizes rim rust and has no detrimental
effects on the tyre. It also reduces the potential of a
SM - 208
Fig. 6 - Typical Safety Cage
Courtesy of Machine.Market