Snorkel TB65J - Manual (Page 53)

Chapter 8 – Operation
TB65J – 0084248 49
Length
Height
Ground Slope
Figure 8.7 – Percent Grade Calculation
3. Use the tape measure to measure the distance
(height) from the end of the 2x4 to the ground. Record
the height distance.
4. Measure the length of the 2x4 and record this mea-
surement.
5. Use the formula in Figure 8.7 to calculate the percent
of the grade.
Machine Gradeability
The gradeability specification for the TB65J aerial plat-
forms is listed below.
Gradeability – theoretical 4x4...................................78%
Theoretically, when all contributing factors are optimal,
the machine can be driven on a slope of 78%. A slope
with a percent grade of 78% is a slope with an angle of
37.9 degrees.
Gradeability – actual 4x4..........................................30%
Gradeability – actual 4x2..........................................25%
An actual gradeability of 30%, indicates that in most nor-
mal working conditions the machine can be driven on a
slope with an angle of 6.6 degrees.
An actual gradeability of 25%, indicates that in most nor-
mal working conditions the machine can be driven on a
slope with an angle of 4 degrees.
Electrical Power Outlet
The electrical outlet at the platform has 2, 3-prong, 0
volt AC electrical connectors. Their combined output is
limited by a 5 amp circuit breaker.
Power may be supplied to the outlet using an external
power source or by operating the optional AC generator.
To use the outlet, plug a source of power into the power-
input connector on the left side of the wiring box (refer to
Figure 8.8). Unplug the source of power before moving
the aerial platform.
Power-Input
Connector
Figure 8.8 – Power-Input Connector
AC Generator
The generator supplies power to the electrical outlet only
when the engine is running and the machine is stationary.
The machine functions will not operate when the machine/
generator selector switch is in the generator position.
Caution
Cold hydraulic oil does not flow well and may produce
improper generator output voltage. Improper outlet
voltage can damage some electrical power tools and
equipment. Warm the hydraulic oil before operating
the generator.
Do not operate the generator unless the hydraulic oil tem-
perature is at least 00°F (38°C). Refer to Cold Weather
Start-Up for a hydraulic oil warm-up procedure.
Use the following procedure to supply power to the elec-
trical power outlet if the machine is equipped with the
optional generator.
. Plug the generator cord into the outlet on the left side
of the wiring box (refer to Figure 8.8).
2. Start the engine and place the machine/generator
switch (refer to Figure 8.9) in the generator position.
Figure 8.9 – Upper Control Panel Front
Machine/Generator Switch