Fasteners; Upper Control Station; Guardrail System; Lanyard Anchors - Snorkel AB46JE Operator's Manual

Chapter 8 – Prestart Inspection

Fasteners

To inspect the fasteners:
1. Visually inspect all fasteners to see that none are
missing or loose.
2. Inspect 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.
3. Raise the riser boom to access the inner race rotation
bearing bolts in the turntable (refer to Figure 8.12).
The outer race bolts can be viewed through the open-
ings in the turntable. Rotate the turntable to inspect
all of the outer race bolts.
Outer Race Outer Race
Access Holes Access Holes
Figure 8.12 – Rotation Bearing Bolts
4. Inspect the inner and outer race rotation bearing
bolts to ensure that none are missing, damaged, or
loose.

Upper Control Station

Inspect the platform and upper controls, after verifying all
functions operated properly from the lower controls.

Guardrail System

The guardrail system includes (refer to Figure 8.13):
• A top rail
• A mid rail
• Three gravity gates: one on each side and one rear
• Toeboards around the sides of the platform
30
Rotation Bearing Rotation Bearing
Bolts Bolts
Lanyard Lanyard
Anchors Anchors
Gravity Gravity
Gate Gate
Figure 8.13 – Guardrail System
To inspect the guardrail system:
1. Visually inspect all components of the guardrail
system. Make sure the rails and toeboards are all in
place and free of any damage or deformation.
2. Visually inspect the rail and toeboard welds for
cracks.
3. Visually check all bolts and nuts fastening the platform
in place. They must be present and not show any
signs of looseness.
4. Inspect the gravity gates to be sure they are present,
not damaged, and move freely.

Lanyard Anchors

There are two lanyard anchors below the upper control
panel (refer to Figure 8.13).
To inspect the lanyard anchors:
1. Visually inspect the lanyard anchors to make sure
they are in place and not deformed.
2. Look for visible cracks in the welds and at the weld
to parent material joints. A bright light may be used
to provide adequate visibility of the inspection area.

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, place the emergency stop
switch and the start switch in the on position. Place
the controls switch in the upper control position.
3. At the upper controls, pull the emergency stop button
outward (refer to Figure 8.14).
Top Rail Top Rail
Gravity Gravity
Gate Gate
Mid Rail Mid Rail
Toeboard Toeboard
AB46JE – 0260072