Chapter 6 - Controls; Battery Disconnect Switch; Lower Controls; Start Switch - Snorkel TB42J Operato's Manual

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 while operating the aerial platform.
Controls to position the platform are located on the lower
control panel on the turntable and on the upper control
panel in the platform. Drive controls are located on the
upper control panel only.

Battery Disconnect Switch

The battery disconnect is located behind the door on the
right side of the turntable above the battery (refer to Fig-
ure 6.1).
Battery Disconnect Switch
Figure 6.1 – Battery Disconnect Switch
The battery disconnect removes electrical power from all
electrically controlled functions when in the off position.
Place the switch in the on position to electrically connect
the battery to the electrical system.
A
Caution
Only authorized personnel should operate the aerial
platform. Unqualified personnel may cause injury
to coworkers or property damage. Lock the battery
disconnect switch in the off position before leaving
the aerial platform unattended.
Turn the battery disconnect switch off to prevent unau-
thorized use of the aerial platform.

Lower Controls

The lower controls (refer to Figure 6.2) are located on the
right side of the turntable. Boom and platform functions
can be operated from the lower controls. The following
are located on the lower control panel.

• Start switch

• Emergency stop switch

• Controls switch

• Ground controls switch

TB42J – 0172310
Chapter 6 – Controls

• Rotation switch

• Boom elevation switch
• Boom extend/retract switch
• Jib articulation switch
• Platform level switch
• Platform rotator switch
• Engine/emergency power switch
• Throttle switch
Start Switch
The start switch works like an automobile ignition switch.
Hold it in the start position until the engine starts, then
release it to on. If the engine dies, the key must be turned
to off before it will go back to start.
An alarm sounds when the switch is turned on to warn
others that the machine engine is being started.
Emergency Stop Switch
The emergency stop is a two-position toggle switch with
a red safety guard. Push the red safety guard down over
the toggle switch to disconnect power to all control cir-
cuits. Lift the guard and push the toggle switch up to the
on position to restore power.
Controls Switch
Use the controls switch to select between lower control
and upper control operation. Place the switch in the plat-
form position to operate the aerial platform from the up-
per controls and in the ground position for lower controls
operation.
Ground Controls Switch
Hold the switch in the on position to operate the machine
from the lower controls.
This switch is spring returned to the off position.
Rotation Switch
The rotation switch is used to rotate the turntable in a
clockwise or counterclockwise direction. The switch is
spring returned to the center off position.
Figure 6.2 – Lower Controls
19