Safety switches – National Mower 68 DL User Manual
Page 49
NATIONAL 68 SR & DL TRIPLEX
®
49
68OM-06/03
SAFETY SWITCHES
Never attempt to remove or
circumvent the safety switches.
Dangerous operating conditions may result.
Your National 68 mower is equipped with safety switches
to monitor the operating conditions of certain machine
functions and stop the mower whenever unsafe conditions
are found.
It is necessary for both the main engine clutch and the
wing cutting unit clutch to be in their neutral position to
start the engine. The 68 DL also requires the operator be
in the seat. The 68 SR does not require the operator to be
in the seat to facilitate use of the hand recoil starter.
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If you encounter difficulties starting the mower’s engine,
or keeping it running, check the chart below to make sure
you are not causing the engine to kill or become unable
to start.
With the engine off, and the ignition key removed, check
the switches regularly to make sure they are unobstructed
by grass clippings or other material. Make sure the
electrical terminals remain clean and dry and the pivot
mechanisms for each switch operate freely.
Never spray the mower safety switches directly with high-
pressure water.