Snorkel A38E-sn004509+ - Manual (Page 16)

Chapter 4 – Safety Devices
12 A38E – 8210052
Figure 4.3 – Emergency Lowering Knobs
Push the emergency lowering knob inward to open the
cylinder bleed down valve for emergency lowering.
Manual Turntable Rotation
The rotation drive output shaft may be used to manually
rotate the turntable if there is a malfunction in the hydraulic
or electrical system.
The output shaft is on the end of the rotation worm drive
below the turntable (refer to Figure 4.4).
Figure 4.4 – Rotation Worm Drive
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Manual Tip Boom Retraction
The manual hand pump may be used to manually retract
the tip boom if there is a malfunction in the hydraulic or
electrical system.
The hand pump is on the control valve underneath the
front chassis cover (refer to Figure 4.5).
Figure 4.5 – Control Valve
Under Front Chassis Cover
Guardrails
The guardrails (refer to Figure 4.6) help protect personnel
from falling off the platform.
The guardrail system includes:
A top rail
A mid rail
A gravity gate
Toeboards around the sides of the platform
The gravity gate allows for access to the platform and
closes automatically after entering or exiting the platform.
After entering the platform check to make sure the gate
is fully lowered and even with the mid rail.
Figure 4.6 – Platform
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Output
Shaft
Entry
Gate
Top Rail
Mid Rail
Toeboard
Rear of Chassis – Riser Boom Lift Cylinder
Front of Chassis – Main Boom Lift Cylinder
Emergency
Lowering Knob
Emergency
Lowering Knob
Hand Pump
Handle