Snorkel TB85J - Manual (Page 40)

Chapter 7 – Prestart Inspection
36 TB80/TB85J – 0112477
Emergency Stop
Push the emergency stop button inward or push the safety
guard down to turn off the engine. The lower control func-
tions should not operate with the emergency stop in this
position.
Emergency Power
Place the battery disconnect switch, the emergency stop
switch, and the master switch in the on position.
Hold the engine/emergency power switch down and the
ground operation switch upward to operate the aerial plat-
form from the lower controls using the emergency power
system.
Emergency Lowering
The main boom can be lowered in an emergency using
the emergency lowering knob. The emergency lowering
knob is at the base of the main boom lift cylinder.
Use the following procedure to test the emergency lower-
ing system.
1. Use the lower controls to raise the main boom.
2. Turn the engine off.
A Danger
Pinch points may exist between moving compo-
nents. Death or serious injury can result from be-
coming trapped between components. Stand clear
of moving components while test operating the
machine.
3. Slowly turn the knob (refer to Figure 7.16) to open
the bleed down valve. The boom should slowly lower
by gravity.
Figure 7.16 – Emergency Lowering Knob
A
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury can result from such accidents. Fully close
the emergency lowering knob before operating the
aerial platform.
4. Turn the knob to close the cylinder bleed down valve.
Level Sensor
Use the following procedure to test the level sensor.
1. Position the aerial platform on a smooth, flat, level
surface.
2. Remove all persons and materials from the platform.
3. Start the engine and raise the main boom just above
horizontal.
4. Open the rear door on the left side of the machine to
access the level sensor (refer to Figure 7.17).
Figure 7.17 – Level Sensor
5. Pull the level sensor to the side as far as possible to
activate the tilt alarm.
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.
6. If the alarm does not sound, remove the machine
from service until the problem is corrected.
7. Lower the main boom.
Emergency
Lowering Knob
Level Sensor