Snorkel S2033 - Manual (Page 28)

❑ Free-Wheeling Valve
Unlatch and swing out the hydraulic tray. The
free-wheeling valve is located on the hydraulic
manifold (refer to Figure 8.8). Check the
free-wheeling valve to make sure it is fully closed
(clockwise).
Figure 8.8—Free-Wheeling Valve
■ Tires and Wheels
Visually inspect the tires (refer to Figure 8.9).
They should be smooth without any cuts, gouges,
or missing rubber that might affect aerial platform
stability.
Figure 8.9—Tires and Wheels
Check the wheel lug nuts to see that none are
missing or loose.
❑ Parking Brakes
Inspect the brake release cam for rust, dirt, and
proper orientation. When the brakes are engaged
the release cam should swing freely when
pushed with a finger and be oriented as shown in
Figure 8.10.
Figure 8.10—Brake Release Cam
■ Ground Strap
Make certain the ground strap (refer to Figure
8.10) is securely fastened to the chassis. It
should be long enough to contact the ground
surface to eliminate static electricity from the
machine.
■ Lower Control Station
With no personnel in the platform, test the
operation of each control from the lower control
station (refer to Figure 8.11).
Figure 8.11—Lower Controls
❑ Operating Controls
Place the battery disconnect switch in the on
position, lift the red emergency stop safety guard
up, and push the toggle switch up to turn on the
electrical power. Place the control selector in the
down position to operate the aerial platform from
the lower controls.
Test the operation of the platform raise/lower
switch in both directions.
Place the battery disconnect switch in the off
position. The platform should not raise or lower
with the disconnect in this position.
page 8 - 4 S2033 – 0390076
Chapter 8. Prestart Inspection
Ground Strap
Brake
Engaged
Cam
Battery
Disconnect
Switch Circuit Breaker
Reset Button Control Selector
Switch
Platform
Raise/Lower
Switch
Emergency
Stop Switch Low Voltage
Warning Light
Free-Wheeling
Valve