Snorkel A46JRT, Operator'S Manual

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Chapter 7 – Prestart Inspection
A46JRT – 0261169 21
Fluid Filter
Checking the condition of the hydraulic fluid filter is part
of the machine maintenance schedule and should not be
performed by the operator.
Hoses, Tubes, and Fittings
To inspect the hoses, tubes, and fittings:
1. Inspect all hydraulic hoses, tubes, and fittings for
wear, leakage, or damage (refer to Figure 7.6).
Figure 7.6 – Hoses, Tubes, and Fittings
2. Make sure the hoses are properly routed to avoid
sharp edges, kinking, and scuffing.
3. Inspect the tubes for dents or other damage that may
restrict fluid flow.
4. Make sure all hoses and tubes are held firmly in their
support brackets.
5. Check under the chassis for fluid that has leaked. Hy-
draulic fluid leaks are easily visible on the ground.
Tires and Wheels
Visually inspect the tires and wheels (refer to Figure 7.7)
to make sure they are suitable for service.
Figure 7.7 – Tires and Wheels
Foam filled tires do not have a pressure decal or a valve core.
To inspect foam filled tires and wheels:
1. Check the wheel lug nuts to see that none are miss-
ing, damaged, or loose.
2. Carefully inspect for large holes or cuts where foam
is coming out of the tire.
3. Look for large embedded objects, such as angle iron,
that can rip a tire open.
Note
Punctures caused by bolts, screws, or nails are not a
problem for foam filled tires.
Lower Control Station
With no personnel in the platform, test the operation of
each control from the lower controls (refer to Figure 7.8).
Figure 7.8 – Lower Controls
Operating Controls
Use the following procedure to operate the machine from
the lower controls.
1. Pull the emergency stop button outward. Place the
control selector switch in the lower control position.
The engine starts to preheat when the switch is
placed in the lower control position.
2. Start the engine.
3. Let the engine warm to operating temperature.
4. Press and hold the ground operation button.
Control Selector
Handle
Emergency
Stop Button
Drive Range
Handle
Ground Operation
Button
Boom
Elevation
Buttons
Platform
Rotate
Buttons
Rotation
Buttons
Steer
Buttons
Platform
Level
Buttons
Jib
Elevation
Buttons
Boom
Extension
Buttons
Riser
Elevation
Buttons