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2. Safety Devices
Note:
When
the
alarm
sounds
Temperature, Low Oil Pressure, or Alternator not
Charging the engine will automatically shutdown
after 20 seconds.
High temperature
■ ❏
The high-temperat�re alarm war�s �o� that the
e�gi�e is overheati�g. (See A�tomatic Sh�t-Offs &
Circ�it Breakers chapter 5 for more i�formatio�.)
Low oil pressure
■ ❏
The low press�re alarm war�s �o� that the e�gi�e
oil press�re is �ear the lower limit for safe operatio�
of the e�gi�e. (See A�tomatic Sh�t-Offs & Circ�it
Breakers chapter 5 for more i�formatio�.)
Alternator not charging
■ ❏
This alarm war�s �o� that the alter�ator is �ot
chargi�g the �atter�. (See A�tomatic Sh�t-Offs &
Circ�it Breakers chapter 5 for more i�formatio�.)
Drive (reverse)
■ ❏
The DRIVE (reverse) alarm alerts people that
the S3970RT/ S3370RT/ S2770RT is traveli�g
�ackwar� alo�g the gro���. This alarm �eeps
twice as fast as the DRIVE (forwar�) alarm.
Drive (forward)
■ ❏
The DRIVE (forwar�) alarm alerts people that
the S3970RT / S3370RT / S2770RT is traveli�g
forwar� alo�g the gro���. This alarm �eeps half as
fast as the DRIVE (reverse) alarm.
■ ■ Load sensing system
As soo� as the scissor stack rises from it's stowe�
positio� the overloa� protectio� s�stem �ecomes
active.
If 90% of rated capacity is reached in the
●
■
platform the overload light will illuminate.
This is a warning to the operator that the platform
is reachi�g rate� capacit�.
Normal function will remain and the machine can
continue to be used
If 100% of rated capacity is reached in the
●
■
platform the overload light will continue to
be illuminated and an alarm will sound.
This is a warning to the operator that rate� capacit�
has �ee� reache� a�� the platform loa� m�st �e
re��ce�.
Normal f��ctio� will remai� to allow the platform
to �e positio�e� to remove some loa� from the
platform.
page 2-2
Note:
The machine should not be operated continuously
for
either
High
with the overload alarm sounding.
The operator must remove load from the platform.
Normal f��ctio� will res�me o�ce the platform loa�
has �ee� re��ce� �elow 110% co�ti��o�sl� for at
least two (2) seco��s.
■ ❏
The level se�sor alarm war�s the S3970RT /
S3370RT / S2770RT operator that the S3970RT /
S3370RT / S2770RT is �ot level. Whe� �o�
hear this alarm, imme�iatel� lower the platform
completel� �ow�. Whe� the platform is completel�
�ow�, �etermi�e a�� correct the ca�se of the tilt
�efore raisi�g the platform agai�.
NOTE
While the alarm is sounding it is not possible to
drive the S3970RT / S3370RT / S2770RT nor raise
the platform
■ ■ Primary Fall Restraint System
The ha��rails, i�cl��i�g mi�-rail a�� toe-�oar�
com�i�e� with the gate, form a Fall Restrai�t
S�stem. The S�stem preve�ts the operator from
Rev A
If 110% of rated capacity is reached in the
●
■
platform the overload light will continue to
be illuminated and an alarm will continue to
sound and all functions will be disabled.
Figure 2.4 - Platform Overload Light
Level sensor
Figure 2.5 - Fall Restraint
S3970RT, S3370RT & S2770RT – 13865-1
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