MSA Workman Manual Del Usuario página 16

ENGLISH
P/N 10112828
ENGLISH
INSTRUCTIONS FOR USE
1. Function and Application: The MSA Workman Tripod head is aluminum alloy and legs are high-tensile, aluminum alloy. The Tripod conforms to
standard EN 795 class B. The Tripod is a transportable temporary anchor device of a personal fall arrest and rescue system. It may be used for fall
arrest, rescue, retrieval, evacuation, depending on which attachment elements are included. Figure 32 show configurations of optional accessories
and typical applications of these systems.
2. Use of MSA Workman Tripod attachments: (1) The central swivel eye is to be used for personal fall arrest systems, such as flexible anchor line (EN
353-2) or the MSA Boom-Mounted Hoist (FIGS 28&29). Refer to the separate user instructions included with these products for installation and use of
each of these optional components (FIG 7). (2) The side-mount swivel eyes are used to attach accessories such as the MSA Split-Mount pulley, P/N
506222, for MSA Side-Mount Hoist (FIGS 26&27), and MSA Rescue RTFA(Retractable type fall arrester) (FIG 6). (3) The MSA Side-Mounted Hoist
is mounted to the Tripod in conjunction with the MSA Split-Mount pulley, P/N 506222, and carabiner, P/N 10089207. (4) The MSA RTFA and Rescue
RTFA attach to the Tripod by means of leg mounting brackets, P/N 506216 or 506232. (5) There is one detent pin in each extension leg. Each pin is
inserted through the selected holes in the upper and lower legs when the desired leg extension is achieved (FIG 8). (6) The leg base strap is necessary
to maintain the position of the Tripod legs and to distribute the applied loads during system use (FIG 52). Tripods have attachments at the base of
each lower leg, through which the leg base strap is threaded. It is fully assembled when the end is passed through all three attachments, connected
through the cam buckle, and tightened. (7) The leg strap may also be connected to the head of the tripod using carabiner, P/N 10089207, and used
as a carrying strap (FIG 9). (8) The nylon tote bag is used to protect the Tripod during transport and storage (FIG 10). (9) Carabiner, P/N 10089207,
is used to mount the optional MSA Split-Mount pulley P/N 506222 to the side attachment points on the Tripod head. (10) The Split-Mount pulley is
designed to work in conjunction with a Rescue RTFA or MSA Side-Mount Hoist, where the cable of the Rescue RTFA or Hoist would pass through the
Side-Mount Pulley and descend into the center of the work access. (11) The optional MSA Boom Hoist or a MSA RTFA may be attached to the central
attachment point on the Tripod head. (12) Contact MSA for information about connection of optional components to the Tripod or refer to the separate
user instructions provided with each component.
3. Operating Instructions: It is the responsibility of the user of MSA Workman Tripod to assure that they are made familiar with these user instructions
and trained by a competent person. Ensure that you have been adequately trained in the use of this MSA Workman Tripod and make sure that you
fully understand how it works.
4. Operating Procedure: Do not open the confined space access cover before completing installation of the Tripod and all other system components.
Erecting and adjusting the tripod (FIGS 13-18): Step 1: Tilt the Tripod into an upright, feet-down position. Step 2: Hinge each leg, one at a time, into
the outward and locked position. Note that each leg automatically snaps upward when the hinge locks. Check to be certain of hinge locking. Step 3:
Position the feet about the hatch cover in accordance with work area geometry and surface conditions. Refer to 6. Design Statements: section 4 for
clearance requirement. Step 4: Optional components to be attached to the Tripod head, such as the Split-Mount pulley, should be assembled to the
Tripod head at this time. Follow the appropriate user instructions for each optional component that is to be connected to the Tripod. Step 5: Raise the
Tripod one leg at a time by pulling the pin (attached to the upper leg section), incrementally sliding out the lower leg section, and repinning. Repeat for
each leg until the Tripod head is at the desired height. The Tripod head should be level when installation is complete. Be careful not to extend each leg
too far in each increment so as to cause the Tripod to topple. The Tripod legs must not be pulled out more until the maximum mark, see FIG 8. Step
6: Once at the proper height, check to be sure the Tripod is stabilized and plumb. Feed the leg base strap through the feet at the bottom of the Tripod
legs. Check all leg pins to assure secure fastening and set the feet in the tread-down position. Tighten the strap through all connectors by pulling the
loose end of the web through the cam buckle. When all equipment is in place on the Tripod, make a last check for plumbness and stability. Make final
adjustments. Then, remove the hatch and manhole cover.
To compact the Tripod for transport or storage, reverse the setup procedure. To disengage the leg hinge locks, pull down on the leg and hinge it inward.
Attach Tripod legs together securely with lower strap as shown (FIG 18).
5. Inspection Guidelines: Step 1: Inspect the Tripod labels to verify that they are present and legible. Check the formal inspection grid to be sure a formal
inspection has been performed within the last 6 months. If the grid does not indicate that a formal Inspection has been performed within the last six
months (by being punched), or if any labels are missing or illegible, remove the Tripod from use and mark it as "UNUSABLE" until a formal inspection
is performed by a competent person. Step 2: Inspect head assembly for corrosion, cracks, deformation, fractures, altered or missing elements, burns,
and heat and chemical exposures. Step 3: Inspect all metallic parts (i.e. head, legs, leg pins, attachment pins, feet) for deformation, fractures, cracks,
corrosion, deep pitting, burrs, sharp edges, cuts, deep nicks, missing or loose parts, improper function, and evidence of excessive heat or chemical
exposures. Step 4: Inspect all non-metallic parts (i.e. skid-resistant foot pads, labels, and leg base strap) for cut, broken, excessively worn, missing
and loose parts. Inspect for evidence of burns and excessive heat and chemical exposures. Step 5: Check the function of the Tripod legs. Legs should
move smoothly in the leg pockets and should seat firmly when moved to the fully open position. The lower legs should slide smoothly within the upper
legs along their entire length. Tripod feet should pivot easily and remain flat on the ground when the Tripod is erected. Step 6: Inspect each component
and subsystem of the complete system in accordance with the associated manufacturer's instructions. Detailed inspections must be recorded in the
inspection checklist. After inspection, mark or punch out the inspection tag to indicate a complete formal inspection was completed.
6. Design Statements: (1) The surface (anchorage) where a Tripod is installed should be inclined by no more than 152 mm over a distance of 3 m. Any
incline greater than this amount 2.8° could allow the Tripod to slide or tip over.
(2) The strength of the ground (base, floor) when the Tripod will be placed shall be not less 10 KN. The Tripod is intended for use by a single person.
Other personnel working in this immediate area as part of a support team will require separate and independent safety systems depending on their
purpose and work function.
(3) Consideration MUST be given to the necessary minimum clearance below the user to prevent a collision with the structure or the ground. The
amount of clearance needed depends upon the type of connecting subsystem used, and the location of the anchorage or anchorage connector.
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