Snorkel A38E-sn004509+ - Manual (Page 31)

Chapter 8 – Prestart Inspection
A38E – 8210052 27
Figure 8.10 – Emergency Lowering Knobs
3. Release the knob to stop.
4. Make certain the knob is fully released after lowering
the platform.
Manual Turntable Rotation
Use the following procedure to test the manual turntable
rotation function:
1. Connect a 7/8″ socket and ratchet to the rotation
worm drive output shaft (refer to Figure 8.11).
Figure 8.11 – Rotation Worm Drive
2. Verify that the turntable can be rotated in both direc-
tions using the ratchet.
Manual Tip Boom Retraction
Use the following procedure to test the manual tip boom
retraction function:
1. From the lower controls, extend the tip boom a few
feet and then press the emergency stop button.
2. Remove the cover from the front of the chassis to
access the control valve.
3. Insert the handle (refer to Figure 8.12) into the hand
pump holder and operate the pump to verify that the
tip boom retracts.
Figure 8.12 – Control Valve
Under Front Chassis Cover
Flashing Light
The machine may be equipped with an optional flashing
light mounted to the top of the counterweight.
To inspect the flashing light:
1. Turn the battery disconnect switch on.
2. At the lower controls, pull the emergency stop button
outward and turn the start switch on.
3. Visually check to see that the light is flashing ap-
proximately one flash per second.
Note
There is not an off switch for the flashing light. The light
cannot be turned off while the start switch is in the on
position.
Structures
Visually inspect all weldments and related components.
It is important to inspect the fasteners that connect the
components.
Rear of Chassis – Riser Boom Lift Cylinder
Front of Chassis – Main Boom Lift Cylinder
Emergency
Lowering Knob
Emergency
Lowering Knob
Output
Shaft
Hand Pump
Handle