Electrocution 1-2, Tipover and falling hazards 1-2, Table 1œallowed ground density 1-2 – Snorkel ATB50 CE User Manual
Page 12: Allowed ground density, 1-2, Electrocution, 1-2, 8-1, Falling hazards, 1-2, Tipover hazard, 1-2, Safety

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Electrocution
The ATB 42/50 is an all metal boom,
NON-INSULATED, aerial work platform.
DO NOT operate it near ELECTRICAL
conductors. Regard all conductors as being
energized.
DO NOT operate outside during a thunderstorm.
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Tipover and Falling Hazards
DO NOT operate the ATB 42/50 from a position
on trucks, trailers, railway cars, floating vessels,
scaffolds, or similar equipment unless the
application is approved in writing by Snorkel.
If the platform or elevating assembly becomes
caught, snagged, or otherwise prevented from
normal motion by an adjacent structure or other
obstacles such that control reversal does not free
the platform, remove all personnel from the
platform before attempts are made to free the
platform using ground controls.
Under normal working conditions it is best not to
transfer from the platform to another structure or
vice versa, unless that is the safest way to do the
job. Each situation must be judged separately
taking the work environment into account. The
following guidelines apply:
1. Where possible, place the work platform over
a roof or walking structure to do the transfer.
2. Transfer your anchorage from one structure
to another before you step across.
3. Remember, you might be departing the work
platform to a structure where
personal fall
arrest
is required.
4. DO NOT climb the rails. Use the entrance.
All platform occupants MUST wear and use fall
restraint. Attach fall restraints to the platform
lanyard anchor points.
Exceeding the maximum carrying load of 500
pounds (227 kg) on the platform as well as
having more than two persons on the platform is
prohibited.
DO NOT raise the boom if the ATB 42/50 is on
soft ground. Operate the boom only on a firm
surface capable of withstanding all load forces
imposed by the aerial platform in all operating
conditions, (see table 1).
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Table 1–Allowed Ground Density
Types of Ground
(Excerpt from DIN 1054)
daN/cm
2
(kp/cm
2
)
A) Poured out loosely
0-1
B) Natural ground, obviously unworked
1. Mud, turf, swamp
0
2. Nonbinding, settled, pressed or compacted
Fine to medium sand
1,5
Course sand to gravel
2,0
3. Bound ground
Muddy
0
Soft
0,4
Stiff
1,0
Medium to hard
2,0
Hard
4,0
4. Rough rocky terrain,unweathered location
Enclosed consecutive layers
15
Large masses in column form
30
Do Not carry loads from any point outside of the
platform. Do not carry loads that extend beyond
the platform guardrails without prior written
consent from Snorkel.
Care shall be taken to prevent rope, electrical
cords, and hoses, etc., from becoming entangled
in the aerial platform.
Raise the platform only when the ATB 42/50 is on
level ground.
Maintain a firm footing on the platform floor.
Exceeding the ATB 42/50 maximum height or
maximum outreach by installing ladders,
scaffoldings or similar devices on the platform is
prohibited.
DO NOT jerk the controls. Move the controls
slowly and deliberately to avoid jerky and erratic
operation. Always stop the controls in the neutral,
off, position before going in the opposite
direction.
DO NOT use the boom for any purpose other
than to position personnel, their tools, and
materials.
Using the ATB 42/50 as a crane, hoist, or jack is
prohibited.
DO NOT operate the ATB 42/50 in winds, or wind
gusts, of 28 mph (45 km/h) or more, (see table
2).
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ATB 42/50 – 0161987EE
1. Safety