Snorkel S1930-snAP05168 - Manual (Page 14)

Chapter 4 – Safety Devices
10 S1930 – 0361527
Emergency Lowering Lever
The emergency lowering lever may be used to lower the
platform if there is a malfunction in the hydraulic or elec-
trical system. The lever is mounted at the front of the
aerial platform (refer to Figure 4.4).
Figure 4.4 – Emergency Lowering Lever
The emergency lowering lever may be used to lower the
scissors arms onto the safety prop before inspecting the
machine. Push the lever down to lower the platform. Re-
lease the lever to stop.
Safety Prop
The safety prop (refer to Figure 4.5) is used to support
the scissors structure when access to the scissors arm
components or the chassis is required. Always use the
safety prop when the platform is raised during inspection
and maintenance.
Figure 4.5 – Safety Prop
Drive/Lift Pothole Protector Interlock
The aerial platform drive and lift functions are interlocked
through a limit switch that senses whether or not the
pothole protection linkage is locked into position. The
drive/lift pothole interlock operates when the platform is
elevated approximately 6
′
(1.8 m).
If an obstruction under the skids, or some other impair-
ment prevents the skids from locking into position, the
drive and lift functions will not operate and an alarm will
sound.
Lower the platform and remove the obstruction when the
drive/lift pothole protector interlock alarm sounds.
Drive/Lift Level Sensor Interlock
The aerial platform drive and lift functions are interlocked
through a level sensor system. The drive/lift level sensor
interlock operates when the platform is elevated approxi-
mately 6
′
(1.8 m).
If the chassis is tilted more than two degrees side-to-
side or more than four degrees front-to-rear, the drive and
lift functions will not operate and an alarm will sound.
Lower the platform and drive to a level surface when the
drive/lift level sensor alarm sounds.
The drive/lift level sensor system is for added protection
and does not justify operating on anything other than firm,
flat, level surfaces.
Lowering Alarm
When the joystick is moved out of neutral to lower the
platform, the alarm emits a loud beeping sound to warn
personnel in the work area to stand clear.
A
Danger
Pinch points exist on the scissors structure. Death
or serious injury will result if the scissors structure
lowers onto personnel within the scissors arms or
under the raised platform. Stand clear while rais-
ing and lowering the platform.
Be careful when lowering the platform. Keep hands and
fingers away from the scissors structures components.
Safety Prop
Emergency
Lowering Lever