Snorkel TB50 - Manual (Page 33)

Chapter 6 – Controls
TB42/TB50 – 0074923 29
Hold the engine/emergency power switch backward
to activate the emergency power system.
Release the switch to disengage the emergency
power system.
Note
The emergency power system is for lowering the plat-
form during an emergency and is not intended for normal
machine operation.
If the engine is running, it will stop when the switch is
placed in the emergency power position.
Platform Foot Switch
The upper controls are interlocked through the platform
foot switch (refer to Figure 6.7).
Figure 6.7 – Platform
Step down on and hold the platform foot switch to
activate the drive and boom functions from the upper
controls.
Machine/Generator Switch
The switch for the optional AC generator is located on the
front of the upper control panel (refer to Figure 6.8).
Figure 6.8 – Upper Control Front
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With the engine running, place the switch in the
generator position to provide electrical power to the
electrical outlet at the platform.
Place the switch in the machine position to turn off
the generator and resume machine operation.
Machine functions will not operate while the switch is in
the generator position.
Hydraulic System Warm-up Switch
The optional hydraulic fluid warm-up switch is used to
warm the hydraulic fluid when the ambient temperature
is below 32°F (0°C) and boom movement is sluggish
because of cold fluid.
Caution
Not all hydraulic fluid is suitable to use in the hy-
draulic system. Some have poor lubricating char-
acteristics and may increase component wear. Only
use hydraulic fluid as recommended.
Use cold weather hydraulic oil as recommended in the
machine General Specifications in temperatures of 10°F
(-12°C) or below.
The toggle switches for the warm-up system on the lower
control panel and one on the upper control panel.
Note
Machine functions are not operational while using the
hydraulic warm-up system.
To warm-up the hydraulic fluid from the upper controls:
1. Start the engine from the upper controls.
2. Place the hydraulic fluid warm-up switch in the on
position.
The engine throttle speed will increase to warm
the hydraulic fluid.
The engine throttle speed will decrease and return
to idle once the hydraulic fluid reaches a preset
temperature.
If the warm-up switch is left on the engine speed
will continue to increase and decrease to keep the
hydraulic fluid at a preset temperature.
3. When the engine throttle speed returns to idle, place
the hydraulic fluid warm-up switch in the off posi-
tion.
Driving and Platform Work Lights
The control for the optional driving lights is on the back
of each light. Place the switch in the on position to oper-
ate the driving lights.
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Platform Foot
Switch
Machine/Generator
Switch