Snorkel TB125J - Manual (Page 34)

Chapter 7 – Prestart Inspection
34 T125J/TB125J – 0192214
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 down and the
ground operation switch upward to operate the aerial
platform from the lower controls using the emergency
power system.
Envelope Management System
Inspect and test the EMS sensors for wear, physical
damage and proper operation (refer to Figure 7.15).
Figure 7.15 – EMS Sensors
Use the following procedure to test and inspect the
EMS.
1. Turn on the ignition and start the engine.
2. From the lower controls, fully extend the boom hori-
zontally. The black and yellow striped tape should
be within 2 to 3′′ (5 to 8 cm) of being flush with the
hose carrier cover. (Refer to Figure 7.16) If more
or less tape is showing, remove the machine from
service and contact a Snorkel authorized service
provider.
Figure 7.14 – Lower Controls
Operating Controls
Use the following procedure to operate the machine
from the lower controls.
1. Turn the battery disconnect switch on.
2. At the lower controls, pull the emergency stop but-
ton outward. Place the control selector switch in the
lower control position.
3. Turn the key switch until the engine starts, then
release.
4. Let the engine warm to operating temperature.
5. Hold the ground operation switch upward.
Danger
Pinch points may exist between moving compo-
nents. Death or serious injury can result from
becoming trapped between components, build-
ings, structures, or other obstacles. Make sure all
personnel stand clear of the aerial platform while
performing the prestart inspection.
6. Test the operation of each function in both direc-
tions.
Note
When checking the turntable rotation function in the
clockwise direction, the turntable will rotate toward
you.
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.
EMS Length
Sensors
Length Sensor
Cables
EMS Angle Sensor
Connector
EMS Angle
Sensors
Primary
Secondary
Primary Secondary
Boom Speed Switch
Ground
Operation
Emergency
Stop
Engine/
Emergency
Power
Start
Controls
Selector