Snorkel TB126J CE - Manual (Page 17)

Chapter 4 – Safety Devices
TB126J – 0192117EE 13
The gates close automatically after entering or exiting
the platform. The gate is part of the guardrail system and
must be securely fastened after entering the platform.
Lanyard Anchors
Two lanyard anchors for fall restraint anchorage are
provided below the upper controls at the front of the
platform (refer to Figure 4.6).
Note
The lanyard anchors are not for lifting or tying the ma-
chine down.
All personnel in the platform must connect their fall
restraint device to a lanyard anchor before raising the
platform. Do not use the aerial platform for personal fall
arrest anchorage.
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 4.8).
Figure 4.8 – 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 to 10 second delay before
the EMS system will be operational. During this delay
period the green light will not be on and the EMS func-
tions will not be operational.
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
Tilt Alarm
If the aerial platform chassis is out of level more than
3.5 degrees when the main boom is raised or extended,
an alarm will sound. The tilt alarm is located under the
upper control panel.
A 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.
When the tilt alarm sounds, completely retract and lower
the main boom and then drive to a level surface. The tilt
alarm is for added protection and does not justify operat-
ing on anything other than firm, flat, level surfaces.
Limit Indicator
EMS Indicator
Lights
Green
White
Red
Green
White
Red
EMS Indicator
Lights