Snorkel TB125J - Manual (Page 19)

Chapter 4 – Safety Devices
T125J/TB125J – 0192214 19
Height Restriction
The EMS has a height restriction feature which allows
the machine owner to limit the maximum height the plat-
form will reach. The maximum height display is located
on the wiring box on the left side of the machine (refer
to Figure 4.9). If the height has been restricted the word
LIMIT will be displayed in the lower right corner.
Figure 4.9 – Wiring Box
Ground Fault Circuit Interrupter
The electrical power outlet at the platform contains a
ground fault circuit interrupter (GFCI) to provide protec-
tion for personnel.
Figure 4.10 – Electrical Power Outlet
Tilt Alarm
If the aerial platform chassis is out of level more than
5 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 can 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.
Envelope Management System
The Envelope Management System (EMS) restricts the
movement of the platform to keep it within safe work
parameters. There are EMS indicator lights on the upper
and lower controls (refer to Figure 4.7).
Figure 4.7 – EMS Indicator Lights
A flashing green EMS light indicates the machine is in
need of calibration. A Snorkel authorized service pro-
vider must be contacted before any further operation. A
solid green light indicates system operation is normal.
The white EMS light will begin to flash as the platform
approaches the edge of the working envelope. A solid
white light indicates the edge of the working envelope
has been reached. In the advent of a solid white light,
the EMS will restrict one or more types of movement to
keep the platform within the working envelope.
The red EMS light/button will only be lit in the case of a
malfunction with the EMS system. The red button/light
will flash and beep in quick pulses then pause and re-
peat if the primary envelope has been exceeded. When
the red button/light emits a continuous series of beeps
and flashes, the primary and backup envelopes have
been exceeded. The display of a solid red light, with
solid tone, is indicative of system or electrical failures or
further extension beyond the backup envelope. If, after
resetting the EMS system, the solid red light reoccurs, a
Snorkel authorized service provider must be contacted
before any further operation.
When the machine is first started or after the EMS has
been reset, there will be a 7-10 second delay before the
EMS system will be operational. During this delay period
the green light will not be on and the EMS functions will
not be operational.
Limit Indicator
EMS Indicator
Lights
Green
White
Red
Green
White
Red
EMS Indicator
Lights
Electrical
Power Outlet