Snorkel TB126J CE - Manual (Page 36)

Chapter 7 – Prestart Inspection
32 TB126J – 0192117EE
Wire Ropes
Visually inspect the wire ropes where they are connected
to the outside of the main boom. There are two wire rope
connections on the bottom of the tip end of the main
boom (refer to Figure 7.19) and inside the cover at the
base end of the main boom (refer to Figure 7.22).
Figure 7.19 – Bottom of Main Boom at Tip End
Figure 7.20 – Base End of Main Boom
Visually inspect the whiffles to ensure that they are
parallel to the edge of the boom. There are two whiffles
on the botton of the tip end of the main boom (refer to
Figure 7.21) and inside the cover at the base end of the
main boom (refer to Figure 7.22). The wire ropes run
through the whiffles.
Inspect the covers while operating the machine to en-
sure they are securely fastened and completely cover
the cylinder rod. Make sure there are no holes in the
covers.
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 par-
ent 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 7.18)
between the main and tip boom sections.
Figure 7.18 – Slide Pads at Tip End of Boom
Use the lower controls to raise the main boom to hori-
zontal. Extend the tip boom about 30 cm (1′). Visually
inspect the slide pads (refer to Figure 7.18) to make sure
they are in place and are not obviously loose.
Inspect the surface where the pads contact the interme-
diate and tip booms. The paint must be in place with no
signs of bare metal.
The extension cylinder support bracket has slide pads
that can be inspected by looking into the base end of
the main boom.
Inspect the surface where the pads contact the main
boom. The paint must be in place with no signs of bare
metal.
Wire Rope
Connections
Slide Pads
Wire Rope
Connections