Snorkel TB50 - Manual (Page 45)

Chapter 7 – Prestart Inspection
TB42/TB50 – 0074923 41
4. Hold the engine/emergency power switch in the
emergency power position and step on the platform
foot switch to verify operation of the aerial platform
using the emergency power system.
Horn
The machine may be equipped with an optional horn
(refer to Figure 7.24).
Operate the horn to ensure that it sounds to warn
personnel in the area.
Figure 7.24 – Upper Controls
Electrical Power Outlet
Connect a source of 110 volt AC power to the power-
input connector on the left side of the wiring box (refer
to Figure 7.25).
Figure 7.25 – 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 optional machine/
generator control (refer to Figure 7.24) in the generator
position to provide electrical power to the two electrical
outlets at the platform.

Plug an electrical tool into the receptacle at the platform
and try to operate the tool to verify proper operation of
the outlet.
The outlet is equipped with a ground fault circuit inter-
rupter (GFCI). Use the following procedure to test the
GFCI.
1. Push the test button (refer to Figure 7.26).
Figure 7.26 – Electrical Outlet
2. Plug an electrical tool into the outlet and verify the
power is off.
If the power is off, push the reset button to restore
power.
If the power is on, repair or replace the recep-
tacle.
All Motion Alarm
The machine may be equipped with an all motion
alarm.
Operate machine functions to ensure that the alarm
sounds to warn personnel in the area that the aerial
platform is in motion.
Air Line to Platform
The machine may be equipped with an optional air line
to the platform.
• Inspect the components, including the air line, mount-
ing hardware, and the caps on the input and output
connectors, etc. to verify all components are present
and are in working condition.
Driving and Platform Work Lights
The machine may be equipped with driving lights and/or
platform work lights.
• Turn the engine on and use the switch on the back
of each light to momentarily turn it on to see that it
works.



Horn Button
Machine/Generator
Switch
Reset Button
Test Button
Power-input Connector