Drive/Lift Pothole Protector Interlock; Drive/Lift Level Sensor Interlock; Lowering Alarm; Emergency Lowering System - Snorkel S1930E Operator's Manual

Chapter 4 – Safety Devices
The pothole protection system is for added protection and
does not justify operating near drop-offs or holes.

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 2 degrees side-to-side
or more than 4 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.
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 raising
and lowering the platform.
Be careful when lowering the platform. Keep hands and
fingers away from the scissors structures components.

Emergency Lowering System

The emergency lowering system may be used to lower
the platform if there is a malfunction in the hydraulic or
electrical system.
On S1930E and S1932E machines the lowering lever is
at the front of the aerial platform. On S2632E machines
a handle at the rear of the chassis is used for emergency
lowering (refer to Figure 4.4).
12
Emergency
Lowering Lever
S1930E and S1932E Front of Machine
Emergency Lowering
Handle
S2632E Rear of Machine
Figure 4.4 – Emergency Lowering System
S1930E and S1932E machines – push downward

on the lever to lower the platform.
S2632E machines – pull outward on the handle to

lower the platform.

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.
Safety Prop
Figure 4.5 – Safety Prop
S1930E/S1932E/S2632E – 1360460