Snorkel AB80J - Manual (Page 38)

Chapter 7 – Prestart Inspection
34 AB80J/AB85J – 0420453
5. Pull the level sensor to the side as far as possible to
activate the tilt alarm.
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.
6. If the alarm does not sound, remove the machine
from service until the problem is corrected.
7. Lower the main boom.
Flashing Light
If the machine is equipped with an optional flashing light,
visually check to see that it flashes. The light should flash
when the engine is running.
Sandblast Protection Kit
The optional sandblast protection kit protects the cylinders
from abrasion while sandblasting or from paint overspray.
Rubber covers protect each cylinder rod as it extends
and retracts. The covers prevent sand and paint from
damaging the cylinder seals and rod.
Inspect the covers while operating the machine to ensure
they are securely fastened and completely cover the cyl-
inder rod. Make sure there are no holes in the covers.
Structures
Visually inspect all weldments and related components.
It is important to inspect the fasteners that connect the
components.
Weldments
Visually inspect all weldments for abnormal wear, abra-
sion, or deformation that could cause interference be-
tween moving parts.
Inspect the welds on the structural components. Pay par-
ticular attention to boom welds. The area to be inspected
should be clean and free of dirt and grease. Look for
visible cracks in the weld and at the weld to parent mate-
rial joint. A bright light may be used to provide adequate
visibility of the inspection area.
Level Sensor
Figure 7.13 – Manual Emergency Lowering Pump
4. Pull and hold the riser boom knob outward while
pumping to lower the riser booms. Stop pumping and
release the knob to stop descent of the booms.
5. Pull and hold the riser boom knob outward while
pumping to lower the main boom. Stop pumping and
release the knob to stop descent of the booms.
6. Place the pump handle back in its holder.
Level Sensor
Use the following procedure to test the level sensor.
1. Position the aerial platform on a smooth, flat, level
surface.
2. Remove all persons and materials from the plat-
form.
3. Start the engine and raise the main boom above
horizontal, approximately 15 to 20 degrees.
4. Open the door on the left side of the machine to ac-
cess the level sensor (refer to Figure 7.14).
Figure 7.14 – Level Sensor
Pump Manual Emergency
Lowering Pump
Main Boom Knob Riser Boom Knob