Snorkel AB46JE - Manual (Page 35)

Chapter 8 – Prestart Inspection
AB46JE – 0260072 31
Figure 8.14 – Upper Controls
A
Danger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure all personnel stand
clear of the aerial platform while performing the pre-
start inspection.
A
Warning
The potential for an accident increases when operat-
ing an aerial platform that is damaged or malfunction-
ing. Death or serious injury could result from such
accidents. Do not operate the aerial platform if it is
damaged or malfunctioning.
4. Step down on the platform foot switch.
5. Visually check to make sure the drive fault light is lit
at the lower controls.
If the drive fault light is not lit or fl ashing, repeat
the steps 1 through 5 to ensure the controls are
set up properly.
After ensuring the controls are set up properly
and the drive fault light is not lit or fl ashing, re-
move the aerial platform from service until quali-
fi ed maintenance personnel can make repairs.
6. Test the platform foot switch by moving a boom
function control without stepping on the foot switch.
If movement occurs the interlock is not functioning
properly. Do not operate the machine until the prob-
lem is corrected.
7. Test the operation of each control in both directions
from the upper controls.
8. The drive range switch and maximum travel speeds
are interlocked through limit switches on the riser and
main boom that senses the position of the booms.
•
•
When the main boom is raised approximately 1
½ ″ (3.8 cm) or extended approximately 1 ″ (2.5
cm), the machine should travel in low speed
only.
To operate in high speed the booms must be
stowed.
Emergency Stop
To test the emergency stop button from the upper con-
trols:
1. At the lower controls, turn the start switch to the on
position and place the control selector switch in the
upper control position.
2. At the upper controls, push the emergency stop but-
ton inward to turn off electrical power.
3. Verify that the upper control functions do not oper-
ate.
Emergency Power
To test the emergency power system from the upper
controls:
1. Turn the battery disconnect switch on.
2. At the lower controls, pull the emergency stop button
outward and place the start switch in the on position.
Place the control selector switch in the upper control
position.
3. At the upper controls, pull the emergency stop button
outward (refer to Figure 8.14).
4. Hold the emergency power switch in the emergency
power position and step on the platform foot switch
to verify operation of the aerial platform using the
emergency power system.
Horn Switch
Operate the horn switch (refer to Figure 8.14) to ensure
that it sounds to warn personnel in the area.
Electrical Power Outlet
To test the electrical power outlet:
1. Connect a source of 110 volt AC power to the power-
input connector on the right side of the chassis (refer
to Figure 8.15).
•
•
Emergency
Power Switch
Emergency
Stop Button
Horn Switch