Snorkel TB120 - Manual (Page 38)

Chapter 7 – Prestart Inspection
34 T120/TB120 – 0192518
Figure 7.25 – 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
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 Figure 7.26).
Figure 7.26 – Rotation Bearing Bolts
Inspect the rotation bearing bolts to ensure that none
are missing, damaged or loose.
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 7.27) includes the
top rail, mid rail, toeboards and a gravity gate or optional
swinging gate.
Figure 7.27 – Guardrail System
Inspect all components of the guardrail system. The
rails and toeboards must all be in place and free of
any damage or deformation. Visually check the rail and
toeboard welds for cracks. All bolts and nuts fastening
the platform 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.
Lanyard Anchors
There are two lanyard anchors below the upper control
panel (refer to Figure 7.27).
Visually inspect the lanyard anchors to make sure they
are in place, are not deformed and are securely fastened
to the platform.
Operating Controls
Use the following procedure to operate the machine
from the upper controls.
1. Turn the battery disconnect switch on.
2. At the lower controls, pull the emergency stop but-
ton outward. Place the control selector switch in the
upper control position.
3. At the upper controls (refer to Figure 7.28), pull the
emergency stop button outward.
Belleville washers
Toeboard
Top Rail
Mid Rail
Gravity
Gate
Lanyard
Anchors
Platform Foot
Switch