Snorkel TB47J CE User Manual download pdf (Page 35)

Chapter 7 – Prestart Inspection

TB47J – 0075239EE 31

Figure 7.17 – Inside Turntable

Upper Control Station

Inspect the platform and upper controls only if all func-

tions operated properly from the lower controls.

Guardrail System

The guardrail system (refer to Figure 7.18) includes the

top rail, mid rail, toeboards and a gravity gate or optional

swinging gate.

Figure 7.18 – Guardrail System

Inspect all components of the guardrail system. The rails

and toeboards must all be in place and free of any dam-

age or deformation. Visually check the rail and toeboard

welds for cracks. All bolts and nuts fastening the plat-

form in place must be present and not show any signs of

looseness.

Inspect the gravity gate to be sure it is present, is not

damaged, and moves freely.

Inspect the optional swinging gate to see that it swings

freely, closes firmly, and is not deformed in any way. Make

sure the spring closes and secures the gate when the

gate is closed.

Figure 7.15 – Top of Main Boom at Base End

Also inspect the wire ropes just inside the base end of

the main boom (refer to Figure 7.16).

Figure 7.16 – Base End of Main Boom

Fasteners

Visually inspect all fasteners to see that none are miss-

ing or loose.

Pay particular attention to all of the bolts, nuts, rollpins,

collars, and snap rings that connect the booms and cyl-

inders. They should all be present, tight, and not dam-

aged in any way.

Raise the main boom to access the rotation bearing bolts

in the turntable (refer to Figure 7.17).

Inspect the rotation bearing bolts to ensure that none are

missing, damaged, or loose.

Rotation Bearing Bolts

Mid Rail

Lanyard

Anchors

Gravity

Gate

Top Rail

Platform Foot

Switch

Toeboard

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Snorkel TB47J CE User Manual Page 35

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