Snorkel S1930-snAP05168 - Manual (Page 29)

Chapter 8 – Prestart Inspection
S1930 – 0361527 25
Figure 8.19 – Upper Controls
Place the battery disconnect switch in the on position
and from the lower controls, place the control selector
upward in the upper controls position. Pull the emergency
stop button outward to turn on the electrical power to the
upper controls.
From the upper controls, test the interlock by moving the
joystick without engaging the interlock switch. If move-
ment occurs the interlock is not functioning properly. Do
not operate the machine until the problem is corrected.
Place the drive/lift selector switch in the drive position
and test the operation of the joystick in both directions.
The lift functions should not operate with the selector in
the drive position.
Place the drive/lift selector switch in the lift position and
test the operation of the joystick in both directions. The
drive functions should not operate with the selector in the
lift position.
Emergency Stop
Push the emergency stop button in to turn off the electri-
cal power. The upper control functions should not oper-
ate with the emergency stop in this position.
Lowering Alarm
Raise the platform and then lower it to ensure that the
alarm sounds to warn personnel in the area that the plat-
form is lowering.
Drive Motion Alarm
Drive in both the forward and reverse directions to ensure
that the alarm sounds to warn personnel in the area that
the aerial platform is in motion.
welds for cracks. All bolts and nuts fastening the guard-
rails in place must be present and not show any signs of
looseness.
Inspect the entry chain to be sure it is present and se-
curely fastened to the rail. The chain must be free of
damage and deformation that may prevent if from func-
tioning properly. Inspect the hook and eye that secures
the chain to the rail.
Inspect the optional swinging gate to see that it swings
freely, closes firmly, and is not deformed in any way. Make
sure the gate is secure when it’s closed.
Inspect the wallboard loading gate to see that it swings
freely, closes firmly, and is not deformed in any way. Make
sure the gate is secure when it is closed.
Platform Extension
A pin at the right front of the platform secures the exten-
sion deck and the upper controls to the main platform
deck.
A
Caution
The extension deck is free to move when the pin is
removed. Make certain the pin is in place when the
deck is extended in the working position and when
it is stowed.
Inspect the pin (refer to Figure 8.18) to ensure that it
properly secures the extension deck. Release the pin to
extend the platform. Extend the platform while checking
for proper operation.
Extend the platform and inspect the weldments for defor-
mation and damage. Visually check the platform welds
for cracks.
Figure 8.18 – Platform Extension Pin
Operating Controls
With the aerial platform stowed, test the operation of each
control from the upper control station (refer to Figure 8.19).
Pin
Horn
Steer Switch
Joystick
Emergency
Stop Button
Interlock Switch
Drive/Lift Selector Switch