Snorkel AB60J CE - Manual (Page 15)

AB60J – 0182099EE 11
At the upper controls, the emergency stop is a two-posi-
tion push button (refer to Figure 4.2). Push the emer-
gency stop button in to disconnect power to the upper
control circuits. Pull the button out to restore power.
Figure 4.2 – Upper Controls
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 engine/emergency power switch (refer to Figure 4.1
and 4.2) down to activate the emergency power sys-
tem.
The length of time the pump can be operated depends
on the capacity of the battery.
Emergency Lowering Knobs
The emergency lowering knobs may be used to lower
the booms if the engine will not start and the emergency
power system will not work. There is a knob to lower the
riser boom and one to lower the main boom. The riser
boom knob (refer to Figure 4.3) is inside the rear of the
turntable.
Figure 4.3 – Riser Boom Emergency
Lowering Knob
Chapter 4 – Safety Devices
Emergency
Stop Button
Ground Operation
Switch
Engine/Emergency
Power Switch
Emergency
Stop Button
Engine/Emergency
Power Switch
Emergency
Lowering Knob
Inside Turntable
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, or ignore any safety device. Safety de-
vices are included in the daily prestart inspection.
A
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 per-
sonnel 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 push button (refer to Figure 4.1). Push the emer-
gency 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
upper control emergency stop button is engaged, the
lower controls can still be used to operate the aerial plat-
form.