Snorkel TB85J - Manual (Page 43)

Chapter 7 – Prestart Inspection
TB80/TB85J – 0112477 39
Figure 7.24 – Upper Controls
4. Turn the master start switch on the front of the upper
control panel to start until the engine starts, then
release it.
5. Let the engine warm to operating temperature.
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 platform foot switch by moving a boom func-
tion control without stepping on the foot switch. If
movement occurs the interlock is not functioning prop-
erly. Do not operate the machine until the problem is
corrected.
7. Test the operation of each control in both directions
from the upper controls.
8. The drive range switch and maximum travel speeds
are interlocked through a limit switch on the turn-
table that senses the main boom position. When the
main boom is raised approximately 8 ′ (2.4 m) the
machine should travel in low speed only. To operate
in high speed the booms must be stowed.
Emergency Stop
Push the emergency stop button in to turn off the engine.
The upper control functions should not operate with the
emergency stop in this position.
Emergency Power
Pull the emergency stop button up and place the anti-
restart master switch in the on position.
Hold the engine/emergency power switch in the emer-
gency power position and step on the platform foot switch
to operate the aerial platform from the upper controls us-
ing the emergency power system.
Horn
Press the horn button (refer to Figure 7.25) to ensure that
it sounds to warn personnel in the area.
Figure 7.25 – Right Side of Upper Control Panel
Electrical Power Outlet
Connect a source of 125 volt AC power to the power-input
connector on the left side of the wiring box (refer to Fig-
ure 7.26).
Figure 7.26 – Wiring Box
Some machines may have an electrical cable already
plugged into the outlet on the lower control panel. In that
case, power is supplied by an optional AC generator. An
external power source is not required.
With the engine running, place the machine/generator
control (refer to Figure 7.27) in the generator position to
provide electrical power to the two electrical outlets at
the platform and to the outlet on the end of the generator
housing.
Horn Button
Power-Input
Connector
Engine
Throttle
Platform
Rotate
Engine/Emergency
Power
Drive Joystick
Boom Joystick Boom Extend/
Retract Joystick
Drive
Range
Platform Level
Jib Switch
Emergency
Stop