Emergency Stop; Lowering Alarm; Pothole Protector Interlock; Emergency Lowering System - Snorkel S1930E Operator's Manual

Emergency Stop

To test the emergency stop button from the lower
controls:
1. Push the emergency stop button inward to turn off
electrical power.
2. Test the lower control functions to make sure they do
not operate with the emergency stop in this position.

Lowering Alarm

To test the lowering alarm from the lower controls:
1. Raise the platform approximately 10' (3 m).
2. Lower the platform and make sure the alarm sounds.

Pothole Protector Interlock

Perform this test using the lower controls.
1. Stow the aerial platform on a smooth, flat, level con-
crete slab.
2. Remove all persons and materials from the plat-
form.
3. With the trays closed, check the ground clearance
under the pothole protector skids (refer to Figure
8.11). Clearance should be at about 2 1/2" (6.3 cm)
on both sides of the aerial platform.
Figure 8.11 – Pothole Protector Skid
4. Raise the platform while watching movement of the
skids. The skids should lower to approximately 3/4"
(2 cm) ground clearance when the platform is raised
approximately 24" (61 cm).
5. Fully lower the platform while watching movement
of the skids. The skids should raise to their stowed
position, with about 2 1/2" (6.3 cm) ground clearance
when the platform is fully lowered.
6. Place a 1 1/2" (3.8 cm) thick board, such as a 2 x 4,
under the skid on the left side (refer to Figure 8.12).
S1930E/S1932E/S2632E – 1360460
Pothole Protector Skid
Chapter 8 – Prestart Inspection
Pothole Protector Skid
Figure 8.12 – Pothole Protector Skid
7. The board will prevent the skid from lowering fully.
Raise the platform. When the skid contacts the board,
the platform should stop raising and an alarm should
sound at approximately 7' (2 m) platform floor height.
The alarm should then sound when the platform lift
switch is activated and the platform should not raise.
8. Lower the platform. Place the board under the skid
on the right side.
9. Raise the platform. When the skid contacts the board,
the platform should stop raising and an alarm should
sound at approximately 7' (2 m) platform floor height.
The alarm should then sound when the platform lift
switch is activated and the platform should not raise.
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.
10. If the platform raise function is not disabled, or the
alarm does not sound remove the aerial platform from
service until the problem is corrected.

Emergency Lowering System

Use the following procedure to test the emergency lower-
ing system:
Danger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components. Stand clear of moving
components while test operating the machine.
1. Use the lower controls, fully raise the platform. Push
the emergency stop button inward.
2. Locate the emergency lowering control. On S1930E
and S1932E machines the lowering lever is at the
front of the aerial platform. On S2632E machines a
2 x 4
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