Snorkel S3246 CE - Manual (Page 38)

Chapter 9 – Operation
34 S2646/S3246 – 0410063EE
Figure 9.2 – Upper Controls
Note
The upper controls will not operate while the control se-
lector is in the lower position.
2. Enter the platform and lower the gravity gate. Make
certain the entry gate is securely pinned in place.
3. Pull the emergency stop button out.
4. The aerial platform may be driven and the platform
may be raised and lowered from the upper controls.
Driving
A
Danger
The aerial platform can tip over if it becomes un-
stable. Death or serious injury will result from a tip-
over accident. Do not drive an elevated aerial plat-
form on soft, uneven, or sloping surfaces. Do not
drive a fully stowed machine on grades that exceed
25 percent.
A fully stowed machine may be operated on grades up to
25 percent. A grade of 25 percent is a 0.76 m (30
″
) verti-
cal rise in 3.05 m (10 ′ ) horizontal length.
A
Warning
Death or serious injury can result from improperly
driving or steering the aerial platform. Read and
understand the information in this manual and on
the placards and decals on the machine before op-
erating the aerial platform on the job.
Use the following procedure to operate the drive func-
tions.
1. Place the drive/lift selector switch (refer to Figure 9.2)
in the drive position.
2. Squeeze and hold the interlock switch against the
joystick.
• To move forward, slowly push the joystick forward.
• To move backward, slowly pull the joystick back-
ward.
Drive Range Switch
The drive range switch has two positions to select drive
wheel operation:
• High (Rabbit) – for normal driving conditions.
• Low (Turtle) – for driving on grades up to 25 percent
that require low speed and high torque operation,
where high range is not sufficient to climb the grade.
In high the machine will travel up to 3.2 km/h (2 mph)
when the platform is raised less than 2.4 m (8
′
) and up to
0.8 km/h (0.5 mph) when the platform is raised above 2.4 m
(8
′ ). Place the drive range switch in high for normal ma-
chine operation.
Place the drive range switch in low, with the platform fully
lowered and the extension deck securely pinned, before
driving up a ramp to load the machine for transport.
A
Caution
The extension deck is free to move when the pins
are disengaged. Make certain the pin is engaged
when the deck is extended in the working position
and when it is stowed.
Drive Speeds
The drive speed is proportional to the joystick position.
The farther the joystick is moved, the faster the travel
speed.
Drive speed ranges are interlocked through a limit switch
that senses scissors arm position. When the platform is
elevated below approximately 2.1 to 2.4 m (7 to 8 feet),
the aerial platform may be driven within the full range of
drive speeds. Above 2.1 to 2.4 m (7 to 8 feet) of elevation,
drive speed is limited to 0.8 km/h (0.5 mph).
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 0.8
km/h (0.5 mph), which is 6.7 m (22
′ ) in 30 seconds, when
elevated above 2.4 m (8 ′ ).
Steer Switch
Drive Range Switch
Interlock Switch
Drive/Lift Selector Switch
Emergency
Stop Button
Joystick