Snorkel TB50 - Manual (Page 42)

Chapter 7 – Prestart Inspection
38 TB42/TB50 – 0074923
Note
There is not an off switch for the flashing light. The light
cannot be turned off.
Sandblast Protection Kit
The optional sandblast protection kit protects the cyl-
inders from abrasion while sandblasting or from paint
overspray. Rubber covers (refer to Figure 7.16) protect
each cylinder rod as it extends and retracts. The cov-
ers prevent sand and paint from damaging the cylinder
seals and rod.
Figure 7.16 – Sandblast Protection Kit
To inspect the sand blast protection kit:
1. Inspect the covers while operating the machine to
ensure they are securely fastened and completely
cover the cylinder rod.
2. 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
To inspect the weldments:
1. Visually inspect all weldments for abnormal wear,
abrasion, or deformation that could cause interfer-
ence between moving parts.
2. 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.
3. 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 7.17)
between the boom sections.
Figure 7.17 – Boom Sections
To inspect the slide pads:
1. Use the lower controls to position the main boom
near horizontal. Extend the tip boom about 1′ (30
cm).
2. Visually inspect the slide pads to make sure they
are securely fastened to the main boom.
3. Inspect the surface where the pads contact the tip
boom. The paint must be in place with no signs of
bare metal.
Wire Ropes
Visually inspect the wire ropes where they are connected
to the outside of the main boom. There is a wire rope
connection on the bottom of the tip end of the main boom
(refer to Figure 7.18) and also one on the top of the base
end of the boom (refer to Figure 7.19).
Figure 7.18 – Bottom of Main Boom at Tip End
Cylinder Rod Cover
Slide Pads
Slide Pads