Chapter 4 - Safety Devices; Emergency Stop Controls; Control Select/Ground Operation Switch; Upper Control Interlock Switch - Snorkel S3215L Operator's Manual

This aerial work platform is manufactured with safety
devices, placards, and decals to reduce the likelihood
of an accident.
For the safety of all personnel, do not disable, modify,
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or ignore any safety device.
Safety devices are included in the daily prestart
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inspection.
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury could result from such accidents. Do not alter,
disable, or override any safety device.
If any safety devices are defective, remove the aerial
platform from service until qualified maintenance person-
nel can make repairs.

Emergency Stop Controls

There is an emergency stop control at the lower and
upper controls.
At the lower controls, the emergency stop is a two-posi-
tion red push button (refer to Figure 4.1).
Control
Select/Ground
Operation Switch
Emergency
Stop Button
Figure 4.1 – Lower Controls
Push the emergency stop button inward to disconnect
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power to all control circuits.
Pull the button outward to restore power.
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Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged, the lower
controls can still be used to operate the aerial platform.
At the upper controls, the emergency stop is a two-posi-
tion red push button (refer to Figure 4.2).
Push the emergency stop button inward when the
upper controls are not in use to protect against un-
intentional operation.
S3215L/S3215E/S3219E/S3220E/S3226E/S4726E/S4732E – 1500834
Chapter 4 – Safety Devices

Control Select/Ground Operation Switch

The control select/ground operation switch (refer to Figure
4.1) prevents platform movement if the platform raise/low-
er switch on the lower control panel is accidentally moved.
Hold the switch downward continually in the lower control
position to enable the platform raise/lower switch func-
tions.

Upper Control Interlock Switch

The interlock switch (refer to Figure 4.3) prevents platform
movement if the joystick on the upper control panel is
accidentally moved.
Engage the interlock by grasping the joystick and pulling
the switch toward the handle to activate the steering,
drive, lift and lower functions.
Emergency
Stop Button
Figure 4.2 – Upper Control Panel Front
Push the emergency stop button inward to disconnect
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power to the upper control circuits.
Pull the button outward to restore power.
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Interlock Switch
Figure 4.3 – Upper Control Panel Top
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