Ground Fault Circuit Interrupter; Tilt Alarm; Engine Protection Systems; High Engine Temperature Alarm - Snorkel TB66JRT Operator's Manual

Ground Fault Circuit Interrupter

The electrical power outlet at the platform (refer to Figure
4.6) contains a ground fault circuit interrupter (GFCI) to
provide protection for personnel.
Figure 4.6 – Electrical Outlet

Tilt Alarm

If the aerial platform chassis is out of level more than
five degrees when the main boom is raised or extended,
an alarm will sound. The tilt alarm is located under the
upper control panel.
Danger
The aerial platform can tip over if it becomes unsta-
ble. Death or serious injury will result from a tip-over
accident. Do not drive or position the aerial platform
for elevated use near any drop-off, hole, slope, soft
or uneven ground, or other tip-over hazard.
Completely retract and lower the main boom and then
drive to a level surface when the tilt alarm sounds.
The tilt alarm is for added protection and does not
justify operating on anything other than firm, flat, level
surfaces.

Engine Protection Systems

A constant alarm will sound to warn against high engine
temperature or low oil pressure.
The engine will shut-down
if the operating temperature exceeds a preset level

or if the oil pressure is too low for safe operation.

An engine temperature gauge is on the lower control
panel (refer to Figure 4.7).
TB66J – 0083740
Electrical
Power Outlet
Engine
Temperature
Gauge
Figure 4.7 – Lower Control Panel

High Engine Temperature Alarm

If the coolant in a Cummins or GM engine exceeds the
engine operating temperature an alarm will sound and
the engine will shut off.
If the oil in a Deutz engine exceeds 230°F (110°C) an
alarm will sound and the engine will shut off. Any time
there is no alternator current being produced, an alarm
will sound and the engine will shut off. This prevents
high engine temperature if the fan belt breaks.
Do not restart the engine until the condition that caused
the overheating has been corrected.

Low Oil Pressure Alarm

The low oil pressure alarm sounds when the engine oil
pressure is near the lower limit for safe engine operation.
If the alarm sounds, lower the platform to the ground
and then turn the engine off.
If the engine oil pressure falls below a safe operating

value the engine will shut off.
The engine can be restarted with low oil pressure,

but it will only run for a few seconds before it shuts
off again.
Do not restart the engine until the condition that

caused the low oil pressure has been corrected.
Chapter 4 – Safety Devices
17