Snorkel SB85J-sn10000+ - Manual (Page 14)

Operation
12 SB85J Fixed Axle – 0112998
Use four wheel coordinated steer when a tight turn-
ing radius is desired for positioning the machine.
Use crab steer to travel in a diagonal motion in the
direction of the wheels.
Note
The steering wheels are not self-centering. Set the steer-
ing wheels straight ahead after completing a turn and
before switching from one steer mode to another.
3. Place the drive/boom selector switch in the drive
position.
4. Step down on the platform foot switch.
5. Push the drive joystick forward to move the chas-
sis forward, the direction of the blue arrow. Pull the
joystick backward to move the chassis backward,
the direction of the yellow arrow. The drive speed is
proportional to the joystick position.
6. To stop drive motion, return the joystick to neutral.
7. Push the drive joystick to the right to steer to the right,
the direction of the yellow arrow. Push the joystick
to the left to steer to the left, the direction of the blue
arrow.
Note
The steering wheels are not self-centering. Set the steer-
ing wheels straight ahead after completing a turn.
8. After driving to the desired location, release the foot
switch, or push the emergency stop button to apply
the parking brakes.
Drive Speeds
The drive speed is proportional to the joystick position.
The farther the joystick is moved, the faster the travel
speed.
Always slow down and shift the drive system to low
range before traveling over rough terrain or any sloped
surface.
Drive speed ranges are interlocked through a limit switch
that senses the main boom position. When the boom is
elevated, only the slowest drive speed will work regard-
less of the drive range switch position.
A Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury can result from such accidents. Do not alter,
disable or override any safety device.
Do not use the aerial platform if it drives faster than 1.0
km/h (0.6 miles per hour) [7.9 m (26 feet) in 30 seconds]
when the booms are elevated from the stowed position.
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Motion Warning Alarm
The optional motion warning alarm sounds loud intermit-
tent beeps when the drive joystick is in the forward or
reverse position.
AC Generator
The optional 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.
A 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 38°C (100°F). Refer to Cold Weather
Start-Up for a hydraulic oil warm-up procedure.
Start the engine and place the machine/generator selec-
tor switch in the generator position (ref: upper controls
illustration on page 6).
The engine will run at high idle while the generator is
operating. The generator will continue to operate as long
as the engine is running and the switch is in the genera-
tor position.
Dual Fuel
The dual fuel switch is located on the front of the lower
control panel.
Before starting the engine, place the fuel switch in the
gasoline or the LPG position. Open the shut-off valve on
the LPG gas tank if using LPG. Always keep the LPG tank
shut-off valve closed when not using LPG.
To switch from gasoline to LPG with the engine running:
1. Open the shut-off valve on the LPG tank.
2. Place the fuel switch in the LPG position.
To switch from LPG to gasoline with the engine running:
1. Place the fuel switch in the gasoline position.
2. Close the shut-off valve on the LPG tank.
Air Line
The optional air line may be used to conduct air for tool
operation at the platform. The input connector is at the
rear of the chassis and the output connector is at the
platform on the rotator guard. The maximum working
pressure of the line is 1,723 kPa (250 psi).