Component Identification; Main Power Disconnect Switch; Tilt Alarm; Load Sensing System - Skyjack SJ 3219 Operating Manual

Component Identification

2.5 Component Identification
The following descriptions are for identification,
explanation and locating purposes only.

2.5-1 Main Power Disconnect Switch

This switch is located at the rear of the base.
Figure 2-1. Main Power Disconnect Switch
1. Main Power Disconnect Switch - This switch,
when in " " off position, disconnects power to
all circuits. Switch must be in " " on position to
operate any circuit. Turn switch "
transporting aerial platform.

2.5-2 Tilt Alarm

The aerial platform is equipped with a device which
senses when the aerial platform is out of level in any
direction. When activated, it disables drive and lift
functions of the aerial platform and an alarm produces
an audible sound accompanied by the amber light
(if equipped).
wARNiNG
If the tilt alarm sounds and the platform
does not, or only partially raises,
immediately lower the platform completely
and ensure that the aerial platform is on
a firm level surface.
TM
Page 16

2.5-3 Load Sensing System

This system is a safety device that will prevent any
normal movement of the aerial platform from a stationary
working position after the rated load is reached and
exceeded. Refer to
capacities.
• When 90% of the rated load is reached:
The red power indicator light on the platform
control console flashes.
1
• When the rated load is reached:
An audible alarm sounds for approximately
2 seconds, 5 times per minute.
• When the rated load is exceeded:
The flashing light and audible alarm continue and
all electrically controlled aerial platform movement
functions stop. To resume normal operation,
remove the overload from the platform.
• If the aerial platform comes in contact with an
overhead obstruction:
The platform could become overloaded and all
functions would stop. Release of the platform
" off when
from this situation can only be effected by use
of the emergency lowering system. Refer to
Section
After reaching full extension and upon
lowering, the aerial platform could stop
and take an overload reading. Return the
controller to the neutral center position,
and release the enable trigger switch. If the
aerial platform is overloaded, the flashing
light and audible alarm continue and
all electrically controlled aerial platform
movement functions stop. To resume
normal operation, remove the overload
December 2007
Section 2 - Operation
Table 2.5 for maximum platform
2.15.
Note
from the platform.
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