Operating instructions

4-5. TAP II FUNCTIONS.
Tap II allows the driver to change the siren
sound via the vehicle’s horn ring. This feature is
especially effective for clearing traffic. The chart
below demonstrates how the horn ring can be used to
change the siren sound:
TAP II FUNCTIONS
Selector First Horn Second Horn
Switch Ring Tap Ring Tap
Position Produces Produces
Wail Yelp Wail
Yelp Wail Yelp
4-6. PRESS AND HOLD FUNCTIONS.
Additional alternate sounds can be activated in
two other Selector switch positions, by depressing
and holding the horn ring for as long as the alternate
sound is desired. The chart below shows these
additional “Press and Hold” functions:
PRESS AND HOLD FUNCTIONS
(Models 690000 and 690001)
Selector Press on Release of
Switch Horn Ring Horn Ring
Position Produces Produces
Hi-Lo Air Horn Hi-Lo
Manual Peak and Coast down
Hold or and silence
Air Horn or silence
PRESS AND HOLD FUNCTIONS
(Models 690002 and 690004)
Selector Press on Release of
Switch Horn Ring Horn Ring
Position Produces Produces
Priority Air Horn Priority
Manual Peak and Coast down
Hold or and silence
Air Horn or silence
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