Snorkel TL37, Operator'S Manual

Page: 26 / 52

Chapter 8 – Prestart Inspection
22 TL37J – 511116-000-EN-A
2. The emergency lower valves located on the lift
cylinders lower the boom when pushed in a slow
and controlled manner and the boom movement
is stoped on releasing the valve.
Structures
Visually inspect all weldments and related components.
It is important to inspect the fasteners that connect the
components.
Weldments
To inspect 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.
The area to be inspected should be clean and
free of dirt and grease.
3. 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 in-
spection area.
4. Pay close attention to welds in areas where
changes in cross section take place and near the
attachment points of highly loaded components.
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. They should all be present, tight, and
not damaged in any way.
Upper Control Station
Inspect the platform and upper controls only if all functions
operated properly from the lower controls.
Guardrail System
The guardrail system includes (refer to Figure 8.6):
y
A top rail
y
A mid rail
y
Lock rail strap
y
Toeboards around the sides of the platform
Top Rail
Mid Rail
Toeboard
Lock Rail
Strap
Figure 8.6 – Guardrail System
The lock rail allows for access to the platform. The lock
rail must be securely closed except when personnel
are entering or leaving the platform.
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 check the rail and toeboard welds for
cracks.
3. Visually check all bolts and nuts fastening the plat-
form and guardrails in place. They must be present
and not show any signs of looseness.
4. Inspect the entry doors to see that they swing freely
and are not deformed in any way. Make sure the
doors are secure when they are closed.
Emergency Hand Pump
With the outriggers down, under load, the machine lev-
el with the wheels clear of the ground, turn the control
select switch to upper controls (turn switch to the left).
• Insert the lever into the pump shaft.
• Move the control lever to the required direction of
movement and operate the hand pump.
• Continue pressing down on the control lever when
the machine starts to lower.
Emergency Stop
To test the emergency stop button from the upper con-
trols:
1. Push the emergency stop button inward to turn
off electrical power.