Snorkel SP18 - Manual (Page 41)

■ Structures
Visually inspect all 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.
Pay particular attention to boom welds. 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.
❑ Slide Pads
The main boom has slide pads (refer to Figure
6.14) between the base, intermediate and tip boom
sections.
Figure 6.14—Slide Pads
Use the lower controls to raise and extend the main
boom about 10¢ (3 m). Visually inspect the slide
pads to make sure they are in place.
Inspect the surface where the pads contact the
intermediate and tip booms. The paint must be in
place with no signs of bare metal.
❑
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
booms and cylinders. They should all be present,
tight, and not damaged in any way.
Raise the main boom to access the rotation bearing
bolts in the turntable (refer to Figure6.15).
Figure 6.15—Rotation Bearing Bolts
Inspect the rotation bearing bolts to ensure that
none are missing, damaged, or loose.
❑ Wire Ropes
There is a wire rope connection (refer to Figure
6.16) on the top and bottom of the main boom.
Visually inspect both connections.
Figure 6.16—Wire Ropes
The wire ropes near the outside the boom should
not have any broken strands or be distorted in any
way.
■ Platform Control Station
Inspect the platform and upper controls only if all
functions operated properly from the lower
controls.
❑
Guardrail System
The guardrail system (refer to Figure 6.17)
includes the top rail, mid rail, toeboards and a
gravity gate or optional swingin gate.
SP17/SP18 – 11972A page 7 - 7
Chapter 7. Pre-operational Inspection