Snorkel A38E-sn006001+ - Manual (Page 30)

Chapter 8 – Prestart Inspection
26 A38E – 8210243
3. Insert the key into the control selector switch and turn
the switch to the lower controls position.
4. Press and hold a boom function switch while operat-
ing the rocker switch to test machine operation.
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.
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.
5. Test the operation of each boom function in both
directions.
Lowering Alarm
While the platform is lowering listen to ensure that the
alarm sounds to warn personnel in the area that the
platform is lowering.
Emergency Stop
To test the emergency stop button from the lower
controls:
1. Push the emergency stop button inward to turn off
electrical power.
2. Test the lower control functions to make sure they no
longer operate.
Emergency Lowering
Use the following procedure to test the emergency lower-
ing valve:
1. Partially raise the riser and main booms from the
lower controls.
2. While standing clear of the chassis and platform,
push the emergency lowering knob (refer to Figure
8.10) inward on each cylinder. The boom will begin
to lower as the knob is pushed in.
Tires and Wheels
Visually inspect the tires and wheels (refer to Figure 8.8)
to make sure they are suitable for service.
Figure 8.8 – Tires and Wheels
To inspect the tires and wheels:
1. Visually inspect the tires. They should be smooth
without any cuts, gouges, or missing rubber that
might affect aerial platform stability.
2. Check the wheels to see that the fasteners are in
place and are not damaged or loose.
Lower Control Station
With no personnel in the platform, test the operation of each
control from the lower controls (refer to Figure 8.9).
Figure 8.9 – Lower Controls
Operating Controls
Use the following procedure to operate the machine from
the lower controls.
1. Make sure the battery disconnect is plugged in.
2. At the lower and upper controls, twist the emergency
stop button clockwise to restore power.
Emergency Stop Button
Turntable
Rotation
Rocker Switch
Riser
Tip Boom
Main
Boom
Diagnostic Center
LCD Display Control Selector Switch