Snorkel S3219E-sn000000+ - Manual (Page 41)

Chapter 9 – Operation
S3219E/S4732E – 1500834 37
Figure 9.3 – Platform Extension
3. Try to move the rails back and forth to make sure the
platform extension deck is locked in position.
Use the following procedure to retract the platform:
1. Enter the platform and secure the doors.
Caution
The extension deck is free to move when the snapper
pins are removed, the latch handles are raised and the
locks are disengaged. Personal injury may result from
accidentally extending or retracting the deck. Make
certain both latch handles are fully lowered, the snap-
per pins are in place and the locks are fully engaged
when the deck is extended in the working position
and when it is stowed. Do not attempt to extend or
retract the platform unless the aerial platform is on a
level surface.
2. Release the latch from each of the snapper pins.
While facing the front of the platform, firmly grasp
each of the latch handles and raise them to unlock the
extension deck. Pull backward to retract the extension
deck to the stowed position. Fully lower the handles to
lock the platform in position and replace the snapper
pins (refer to Figure 9.3).
3. Try to move the rails back and forth to make sure the
platform extension deck is locked in position.
Driving and Steering
Danger
The aerial platform can tip over if it becomes unstable.
Death or serious injury will result from a tip-over ac-
cident. Do not drive an elevated aerial platform on
soft, uneven, or sloping surfaces. Do not drive 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 30″ (0.76 m)
vertical rise in 10′ (3.05 m) horizontal length.
Warning
Death or serious injury could result from improperly
driving or steering the aerial platform. Read and un-
derstand the information in this manual and on the
placards and decals on the machine before operating
the aerial platform on the job.
Use the following procedure to operate the drive and
steer functions.
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.
3. Push the drive joystick forward to move the chassis
forward. Pull the joystick backward to move the chas-
sis backward. The drive speed is proportional to the
joystick position.
4. To stop drive motion, return the joystick to neutral.
Note
To make an emergency stop push the emergency stop
button inward to apply the parking brakes.
5. The steer switch is a momentary contact, rocker
switch on top of the drive joystick. This switch controls
the two front wheels to steer the aerial platform.
To steer to the right, hold down the right side of
the steer switch.
To steer to the left, hold down the left side of the
steer switch.
Note
Holding the steer switch down too long may result in
a sharp turn. This is especially true when driving and
steering at the same time. It may be easier to turn the
wheels in small increments using a series of quick taps
on the steer switch.
6. Set the steer wheels straight ahead after completing
a turn. The steering wheels are not self-centering.
Drive Range Switch – S4732E
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 2 mph (3.2 km/h)
when the platform is raised less than 8′ (2.4 m) and up
to 0.5 mph (0.8 km/h) when the platform is raised above




Snapper Pins
Extension Handles