Snorkel S2033 - Manual (Page 31)

■ Flashing Light
If the machine is equipped with the optional
flashing light (refer to Figure 8.17), visually check
to see that it flashes. The light should flash when
the lower controls battery disconnect and
emergency stop switches are on.
Figure 8.17—Flashing Light
■ Structures
Visually inspect all mechanical structures
including the weldments and related components.
It is important to inspect the fasteners that
connect the components.
❑ Weldments
Visually inspect all weldments for abnormal wear,
abrasion, or deformation that could cause
interference between moving parts.
Inspect the welds on the structural components.
The area to be inspected should be clean and
free of dirt and grease. Look for visible cracks in
the weld and at the weld to parent material joint.
A bright light may be used to provide adequate
visibility of the inspection area.
Pay close attention to welds in areas where
changes in cross section take place and near the
attachment points of highly loaded components.
❑ Rollers and Slide Blocks
Visually inspect the scissors arm rollers and slide
blocks (refer to Figure 8.18). They must be free to
move without obstruction.
Figure 8.18—Rollers and Slide Blocks
Raise the platform from the lower controls to
visually inspect the slide blocks underneath the
front of the platform (refer to Figure 8.19).
Figure 8.19—Platform Slide Blocks
There is one side block on each side of the
platform. The slide blocks must be in good
condition and free to move without obstruction.
❑ Fasteners
Visually inspect all fasteners to see that none are
missing or loose.
Pay particular attention to all of the bolts, nuts,
rollpins, collars, and snap rings that connect the
scissors arms. They should all be present, tight,
and not damaged in any way.
S2033 – 0390076 page 8 - 7
Chapter 8. Prestart Inspection
Roller
Slide
Block
Slide Block
Flashing Light