Briggs & Stratton 115400, Manual

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Low oil will cause contact between the cylinder
housing and a shaft attached to a float. The
sensor assem bly is show n with the shaft ([
A ] Fig.
24) grounding against the cylinder housing.
Fig. 24
When the switch is submerged in oil, the shaft is
lifted and no longer makes contact with the
cylinder.
An O-ring provides a seal between the cylinder
housing and the terminal ([Fig. 25]
A & B ).
Fig. 25
The signal from the low oil sensor is sent to a
two-wire ([
A ] Fig. 26) or four wire module which
is connected to a stop switch.
Fig. 26
OIL GARD® (161400)
For Troubleshooting information:
See SECTION 2- TROUBLESHOOTING, pg.55.
Oil Gard® System (161400)
When engine runs low on oil, the engine will stop
and the Oil Gard® light will flash. The engine will
not restart until the correct amount of oil is
added.
This system uses a float to operate a magnetic
switch. When the oil level is correct, the float
rises (
A ) and opens the switch. When the oil
level is low, it drops ([ B ] Fig. 27) and closes the
switch. This causes two things to occur:
1. The ignition primary circuit will cause the
warning light to flash.
2. The eng ine will stop.
Fig. 27
f59p26