Snorkel AB80J - Manual (Page 19)

AB80J/AB85J – 0420453 15
This aerial work platform is manufactured with safety de-
vices, placards, and decals to reduce the likelihood of an
accident. For the safety of all personnel, do not disable,
modify, or ignore any safety device. Safety devices are
included in the daily prestart inspection.
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury can 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-position
push button (refer to Figure 4.1). Push the emergency
stop button in to disconnect power to all control circuits.
Pull the button out to restore power.
Figure 4.1 – Lower Controls
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 push button (refer to Figure 4.2).
Chapter 4 – Safety Devices
Figure 4.2 – Upper Controls
Push the emergency stop button in to disconnect power
to the upper control circuits. Pull the button out to restore
power.
Emergency Power System
The emergency power system includes a back-up pump,
motor, and battery. Use this system to operate the boom
and turntable functions to lower the platform if the main
power system fails due to engine or pump failure.
Hold the emergency power switch (refer to Figure 4.1
and 4.2) in the direction of the white arrow to activate the
emergency power system.
The length of time the pump can be operated depends
on the capacity of the battery.
Manual Emergency Lowering Pump
The manual emergency lowering pump may be used to
lower the riser and main booms if the engine will not start
and the emergency power system will not work. The pump
(refer to Figure 4.3) is behind the cowling door on the left
side of the turntable.
Figure 4.3 – Manual Emergency Lowering Pump
After selecting either the riser or main boom valve, the
hand pump may be used for emergency lowering.
Engine/Emergency
Power Switch
Ground
Operation Switch
Emergency
Stop Button
Engine/Emergency
Power Switch
Emergency
Stop Button
Pump Manual Emergency
Lowering Pump
Riser Boom Knob Main Boom Knob