Snorkel TB66J CE - Manual (Page 35)

Chapter 7 – Prestart Inspection
TB60/66J – 0084030EE 3
Emergency Stop
Push the emergency stop button in to turn off the engine.
The lower control functions should not operate with the
emergency stop in this position.
Emergency Power
Place the battery disconnect switch, the emergency stop
button, and the master switch in the on position.
Hold the engine/emergency power switch in the emer-
gency power position and the ground operation switch
in the on position to operate the aerial platform 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 (refer
to Figure 7.).
Use the following procedure to test the emergency
lowering system.
. Use the lower controls to raise the main boom.
Figure 7.11 – Emergency Lowering Knob
2. Turn the engine off.
A Danger
Pinch points may exist between moving com-
ponents. Death or serious injury will result from
becoming trapped between components. Stand
clear of moving components while test operating
the machine.
3. Slowly turn the knob to open the bleed down valve.
The boom should slowly lower by gravity.
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.
Emergency
Lowering Knob
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 plat-
form.
3. Start the engine and raise the main boom to just
above horizontal.
4. Open the rear door on the left side of the machine
to access the level sensor (refer to Figure 7.2).
Figure 7.12 – Level Sensor
5. Pull the level sensor to the side as far as possible
to activate the tilt alarm.
6. If the alarm does not sound, remove the machine
from service until the problem is corrected.
7. Lower the main boom.
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.
Flashing Light
If the machine is equipped with an optional flashing light,
visually check to see that it flashes. The light should flash
when the engine is running.
Sandblast Protection Kit
The optional sandblast protection kit protects the cyl-
inders from abrasion while sandblasting or from paint
overspray. Rubber covers protect each cylinder rod as
it extends and retracts. The covers prevent sand and
paint from damaging the cylinder seals and rod.