Snorkel TB85J CE - Manual (Page 35)

Chapter 7 – Prestart Inspection
TB80/TB85J – 0112622EE 31
Figure 7.13 – Rear Axles Extended and Locked
Remove the pin (refer to Figure 7.13) and verify that the
jack will not lower to raise the rear axles with the pin out.
Lock the pin in position in the bottom hole.
Lower Control Station
With no personnel in the platform, test the operation of
each control from the lower controls (refer to Figure 7.14).
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. Insert the key in the controls selector
switch and turn the switch to the lower control posi-
tion.
3. Press the start button until the engine starts, then
release.
4. Let the engine warm to operating temperature.
5. Hold the ground operation switch upward.
A
Danger
Pinch points may exist between moving compo-
nents. Death or serious injury can result from be-
coming trapped between components, buildings,
structures, or other obstacles. Make sure all person-
nel stand clear of the aerial platform while perform-
ing the prestart inspection.
6. Test the operation of each function in both directions.
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.
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 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 7.15) to open
the bleed down valve. The boom should slowly lower
by gravity.
Pin Locked In
Bottom Hole
Engine/Emergency
Power Switch
Ground
Operation Switch
Emergency
Stop Button
Start Switch
Controls
Selector Switch