Maserati QUATTROPORTE Owner's Manual page 242

In an Emergency
• Unscrew and pull out the locking
wheel knob.
6
• Take the container and the compact
spare wheel out of the trunk.
Container inserted in the compact
spare wheel contains:
• an electric compressor, complete
with pressure gage and fitting for
inflating the compact spare wheel;
240
• a telescopic wrench with rubber
coated handle for unscrewing/
tightening the wheel bolts;
• an adapter to be fitted to the
wrench for the wheel nuts;
• a jack.
• Lift the compressor cover and
remove the hose with the pressure
gage and the cable with a plug for
the power outlet.
• Unscrew the valve cap of the
compact spare wheel and screw the
fitting of the inflation hose onto the
valve.
• Insert the plug in one of the
available power outlets fitted in the
trunk or cabin.
• Turn the compressor on by pressing
the switch.
• Stop the compressor pressing switch
again, when the pressure indicated
by the gage reaches the
recommended level (see "Tire
Inflation Pressure" in section 8) and
screw the cap on the compact spare
wheel valve.
CAUTION!
• In order to obtain a more accurate
reading, the compressor should be
switched off when checking the tire
pressure of the compact spare wheel
on the pressure gage.
• Do not run the compressor for more
than 20 minutes: there is a risk it
could overheat. Also, prolonged
power absorption may discharge the
battery, subsequently preventing the
engine from starting.
• The compressor has been designed
exclusively to inflate compact spare
wheels; do not use it to inflate air
mattresses, dinghies etc.