Upper Controls; Boom Operation; Driving And Steering - Snorkel AB60J Operator's Manual

6. Hold the ground operation switch upward to the on
position while operating the boom and turntable
control toggle switches.
7. Hold the appropriate toggle switch in the desired
direction.
8. Gradually turn the boom speed knob to control the
main boom raise/lower, extend/retract, jib rotate, and
turntable rotation speed.
9. Release the function toggle switch to stop move-
ment.
10. Release the ground operation switch to the off posi-
tion when no functions are being operated.

Upper Controls

The upper controls may be used for driving the aerial
platform and positioning the booms and platform while
on the job.
Use the following procedure to operate machine functions
using the upper controls.
1. At the lower controls, pull the emergency stop button
outward to the on position and turn the start switch
on. Place the control selector switch in the upper
controls position.
2. On dual fuel machines, set the fuel switch to either
LPG or gasoline.
3. Open the shut-off valve on the tank if using LPG.
4. Enter the platform and securely close the gate.
5. Attach the fall restraint lanyard to one of the anchor
points (refer to Figure 8.3).
Platform
Foot Switch
Lanyard
Anchors
Figure 8.3 – Platform
6. Pull the emergency stop outward (refer to Figure
8.4).
AB60J – 0181972
Emergency
Stop Button
Start Switch
Figure 8.4 – Upper Controls
7. Turn the start switch to on and pause a few seconds
while the alarm sounds to alert others that the ma-
chine is about to start. Turn the switch to start, then
release it to on. The engine will not start if the switch is
left in the on position for 30 seconds or longer before
turning it to start. The switch must be turned back to
off before the engine will start.
Note
If the machine has a GM engine, there will be a 7 to 10
second delay after starting the engine, before the throttle
will go to mid or high. Start the engine and wait 10 seconds
before proceeding with machine operation.
8. Let the engine warm to operating temperature.

Boom Operation

Use the following procedure to operate the turntable,
boom, or platform functions.
1. Step down on the platform foot switch (refer to Figure
8.3). This switch must be held down to operate the
upper controls.
2. Hold the appropriate control in the desired direction.
Always look in the direction of movement.
3. To stop movement release the control to its neutral
position or release the foot switch.

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 the
machine on grades that exceed 20 percent.
For operation on grades up to 20 percent, it is recom-
mended that the riser and main booms be fully lowered
and the jib elevated just enough to provide adequate
ground clearance.
Chapter 8 – Operation
Engine/Emergency
Power Switch
47