Parking Brakes; Lower Control Station; Operating Controls; Lowering Alarm - Snorkel TM12 Series Operator's Manual

Chapter 8 – Prestart Inspection
2. Check the wheels to see that the fasteners are in
place and are not damaged or loose.

Parking Brakes

Inspect the brake shoes to make sure they fully engage
the rear tires as shown in Figure 8.8.
Figure 8.8 – Rear of Chassis

Lower Control Station

With no personnel in the platform, test the operation
of each control from the lower controls (refer to Figure
8.9).
Emergency Stop Button
Platform Raise/Lower Switch
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 button
clockwise to restore power.
3. Insert the key into the start switch and turn the switch
to the on position.
4. Press and hold the ground operation button.
20
Parking Brake
Ground Operation Button
Start Switch
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 the platform raise/lower switch
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 platform from the lower controls.
2. While standing clear of the chassis and platform,
pull the emergency lowering knob outward (refer to
Figure 8.10). The platform will begin to lower as the
knob is pulled.
Emergency Lowering Knob
Figure 8.10 – Front of Machine
TM12 – 8210027