Caution, Danger – Exmark NAV27KC User Manual
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6.2 MERCURY SWITCH DISPOSAL
CAUTION
POTENTIAL HAZARD 
♦ The mercury contained in the tilt switch is poisonous. 
WHAT CAN HAPPEN 
♦ Exposure to mercury can cause severe illness. 
HOW TO AVOID THE HAZARD 
♦ Never attempt to open or repair the tilt switch 
♦ Avoid contact with the mercury.
The tilt switch (PN 1-633782) on this unit contains mercury, a hazardous material. Mercury 
that is outside a sealed container vaporizes at room temperature. The vapors are harmful. 
Mercury can be absorbed through the skin. Do not attempt to open or repair this switch. 
A very small amount of mercury is contained in a hermetically sealed body. The steel 
switch is then potted in a hard epoxy in a plastic case. It is unlikely that the mercury will 
ever escape from the enclosure. These high performance and reliable inexpensive 
switches are recyclable. Mercury is an important and beneficial compound but requires 
special care in handling and disposal. When used and managed properly, mercury is not 
a threat to people or the environment. This information is presented to users so that they 
are aware that these switches contain mercury and will apply sound disposal practices 
when these devices reach their normal end of life or are damaged. 
Several states have passed laws concerning the disposal of devices containing mercury. 
In all the remaining states it is advisable to follow similar procedures. The laws state that 
these sealed devices contain mercury and should not be placed in the garbage until the 
mercury is removed and reused, recycled or otherwise managed to insure that it does not 
become part of solid waste or waters. Management and disposal practices must be within 
relevant federal, state, or local laws. 
Return the switch to your Exmark dealer if it is faulty and is being replaced or if the unit 
containing the switch is no longer operating and is being scrapped. If the switch is 
damaged or broken open use extreme caution in handling. Call your local waste 
management authority or Exmark Customer Service for instructions. 
6.3 BATTERY DISPOSAL
DANGER
POTENTIAL HAZARD 
♦ Battery electrolyte contains sulfuric acid, which is 
poisonous and can cause severe burns
WHAT CAN HAPPEN 
♦ Swallowing electrolyte can be fatal or if it touches skin 
can cause severe burns.
HOW TO AVOID THE HAZARD 
♦ Wear safety glasses to shield eyes, and rubber gloves 
to protect skin and clothing when handling electrolyte.
♦ Do not swallow electrolyte.
Federal law states that batteries should not be placed in the garbage. Management and 
disposal practices must be within relevant federal, state, or local laws. 
If a battery is being replaced or if the unit containing the battery is no longer operating and 
is being scrapped, take the battery to a local certified recycling center. If no local 
recycling is available return the battery to any certified battery reseller. 
