SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA
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Features and devices Section 3 – Familiarization
3.4-7 Brake-release system
This system disengages the brakes manually before
you winch or tow the MEWP. Refer to Section 6.3 for
the procedure. Refer to Section 3.1 for the location of
the brake-release system.
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2
Figure 03 SJ46 AJ/SJ51 AJ brake release system
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2
Figure 04 SJ63 AJ brake release system
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1
Brake hand pump
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2
Brake auto-reset valve plunger
3.4-8 Secondary guarding electrical
(SGE)
This device prevents sustained involuntary operation
of the MEWP from accidental contact with the platform
controls. The audible/visual alarm lets personnel know
that pressure has been applied to the sensor bar.
WARNING
This device will not prevent a collision or injuries
that can result from a collision.
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3
1
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1
Sensor bar: This bar is in front of the platform
control console. When you apply pressure to the
sensor bar, it stops all functions.
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2
Reset: This button is on the top left corner of the
platform control console. It illuminates when you
apply pressure to the sensor bar for more than 1
second. When you press this button, it stops the
audible/visual alarm.
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3
Audible/visual alarm: This alarm is on the
bottom of the platform control console. It goes
on when you apply pressure to the sensor bar.
SGE operation
1. When you apply pressure to the sensor bar for
less than 1 second, the audible/visual alarm
goes on while the bar is pressed. All functions
stop. The audible/visual alarm goes off after the
sensor bar is released, and the functions are
available again.
2. When you apply pressure to the sensor bar for
more than 1 second, the audible/visual alarm
goes on and the engine stops. All functions stop.
The reset button illuminates. The emergency-
power functions are available.
3. After you remove pressure from the bar, press
the reset button to stop the audible/visual alarm
and make all functions available.
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