Snorkel X40RT - Manual (Page 25)

5. AUTOMATIC SHUT-OFFS
5 - 1 P/N 569300
T
AUTOMATIC SHUT-OFFS
Y Level Sensor
When the level sensor alarm sounds, automatic
interlocks make it impossible to drive the SR or
raise the platform. For more complete
information see the “Level Sensor” subsection of
the “SAFETY DEVICES “ chapter.
Y Engine Temperature
There is a temperature sensor in the engine. It
measures the temperature of the antifreeze-
water mixture as the mixture leaves the top of
the radiator and enters the top of the engine. If
the temperature reaches 210
°F (99°C) an alarm
sounds. If the temperature continues to rise, the
engine shuts off when the temperature reaches
230
°F (110°C). The engine will not restart until
the temperature drops below 210
°F (99°C).
Y Engine Oil Pressure
There is an oil pressure sensor in the engine. It
measures the engine oil pressure at the oil filter.
If the pressure falls below a safe operating value
the engine shuts off. The engine will restart with
low pressure but it will only run a few seconds
before it automatically shuts off again.
Y Platform Height vs. Drive Speed
When the platform is over seven feet (2.1 m)
above the ground the drive speed is limited to the
slowest speed and the lift speed is also limited to
the slowest speed.
Y Parking Brakes
When the JOYSTICK CONTROLLER is in the
neutral position the SR parking brakes are
automatically set. The brakes automatically
release when you move the JOYSTICK
CONTROLLER to drive.
Y Dynamic Brakes
When you drive an SR down a slope, if the SR
begins to coast (outrun the drive motors) the
hydraulic system “senses” the coasting condition.
The hydraulic drive motors then become
hydraulic brakes and the SR is slowed. This
action prevents SRs from speeding down
grades.
5. AUTOMATIC SHUT-OFFS
& CIRCUIT BREAKERS