Great Dane 42101401 - Manual (Page 27)

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3. Should ignition or combustion of the urethane
become evident (flame, smoke, charring, odor, etc.),
hot work must be stopped immediately. All flames
must be extinguished and additional urethane mate-
rials must be removed from the workpiece and/or
workplace before hot work is continued.
4. A fire watcher equipped with a 15-pound CO
2
or dry-
chemical extinguisher must be posted at the job site
during all hot work operations, and must remain for
at least 30 minutes after such operations have been
completed.
5. All work involving heat, especially burning and
welding, must be performed in a well-ventilated
area.
6. Interrupt burning and welding occasionally to
prevent a buildup of heat.
7. Workers shall know what to do in the event of an
emergency. Prior to work being started, workers
must be aware of how to contact fire and medical
personnel should the need arise.
8. In the event a urethane fire is encountered,
immediate steps shall be taken to avoid breathing
the toxic fumes associated with such fires.
Personnel fighting the fire must be equipped
with NIOSH-approved, self-contained breathing
apparatus. Personnel not equipped with
NIOSH-approved, self-contained breathing
apparatus must leave the area immediately.
PLATFORM TRAILERS
MAIN BEAMS
Platform trailers are constructed such that the main
beams provide both the load-bearing and load-carrying
capability. It is important that no welding, burning,
drilling, etc. ever be done on these main beams, as the
structural capability will likely be drastically affected.
No such items as sliding-base winches should be
added to these beams as they would tend to twist the
beams, especially on wide-frame platforms. The ability
of these beams to take loads would be impaired due to
the twisting.
If modification of the beam is ever necessary, the
factory should be consulted prior to doing the work.
CROSSMEMBERS
Crossmembers are used not only to carry loads into
the main beams but are also used to maintain the main
beams in a vertical direction. Any area where cross-
members have been removed for any reason may
cause twisting of the main beams and could cause a
structural failure.
EXTENDABLE PLATFORMS
The extendable platforms have more inspection points
due to their complexity. In addition to the main rails
and crossmembers, the lock pins should be inspected
for proper protrusion and wear. If the diameter of the
lock pin has 1/4" or more of wear it should be replaced.
The lock-pin safety-lock mechanism should also be
inspected for proper operation. The two sections ride
on rollers that have fittings to allow them to be greased
at regular intervals. One additional caution is to keep
the caps on all air connectors when they are not in
use. These caps are necessary to keep dirt out of the
air system.
CONVERTER DOLLY
The fifth wheel on the dolly should be maintained in
accordance with the vendor’s recommendations. The
suspension should be maintained following the same
recommended preventative maintenance practices as
previously listed for trailers.
Maintenance of grease lubricants on the fifth-wheel
race is critical in the operation of multi-unit equipment.
Dry fifth-wheel tables will result in “sticking” of the
coupler plates during operation which can result in a
“whipping” action of the multi-unit equipment.
WARNING This trailer is insulated with
urethane foam which is an organic material.
The following precautions shall be observed:
1. Urethane foam will burn when exposed to
flame or extreme heat. Foam shall be shield-
ed with a thermal barrier when welding or
torch cutting in its vicinity. Fire extinguishing
equipment should be readily available.
2. Fires involving urethane can be extinguished
with water, carbon dioxide or dry chemicals.
Personnel fighting the fire shall be equipped
with NIOSH-approved, self-contained
breathing apparatus.
WARNING All coupling and safety devices
associated with multi-unit operation must be
inspected prior to each coupling to insure safe
operation.