6
3.4 OPERATION
Step 1. Position the Unit: Use the positioning handles on the rear of the weight cart and positioning bars
on the front of the unit (see Figure 1) to position the unit at the desired work location, within the
requirements of section 3.2.
Step 2. Once the unit is in proper position and alignment, Raise the front and rear tire jacks until the foot
pads reach the work surface. Continue to rotate the jack handles until all three wheels are lifted off
the work surface and rotate freely to ensure the weight of the unit is transferred to the foot pads.
Step 3. Attach your personal fall arrest system (PFAS) to the attachments points on the mast arm (see
Figure 1). Refer to the PFAS manufacturer’s instructions for correct attachment and use of the PFAS.
Do not attach more than one PFAS to an attachment point. Do not attach more that two PFAS to the
Perimeter Limiter.
warnIng: Do not move the Perimeter Limiter while a user is attached to it.
3.5 OPTIONAL MAST FOR 9.5 FT. (2.9 M) CONFIGURATION: If you are retrotting your Perimeter Limiter
with the optional 9.5 ft. (2.9 m) mast, remove the mast arm as previously indicated. After the mast arm is
removed, remove the bolt at the base of the mast and lift the mast off the base.
Replace the old mast with the new one and replace the original bolt and nut, then place the mast arm on top
of the new mast and replace its bolt and nut. Be sure to tighten both nuts with a wrench to make sure they
are snug.
Along with the 9.5 ft (2.9 m) mast, you need to install an additional weight set into the weight box. To
install the extra weights, Use the lifting point shackles to raise the Perimeter Limiter about 1 ft. (.3 m) off
the ground. Place two of the weights inside the weight box and center them over one of the mounting holes
in the permanent weights. Slide one of the supplied long, 1‑in. bolts into the hole from the bottom of the
cart and apply the washer and nut to the end of the bolt after it has passed through the two extra weights.
Snug the nut down with a wrench. Repeat this procedure with the other two extra weights over the second
mounting hole.
warnIng: Do not use the 9.5 ft. mast without installing the additional weights. In the event of a fall without
the additional weights, the anchor could tip causing sever injury or death.
3.6 BODY SUPPORT:
A full body harness must be worn for fall arrest applications. For general fall protection
use, connect to the D‑ring on the back between the shoulders (dorsal D‑ring).
IMPortant: Body belts are not allowed for free fall situations. Body belts increase the risk of injury during fall
arrest in comparison to a full body harness. Limited suspension time and the potential for improperly wearing a
body belt may result in added danger to the user’s health.
3.7 OPTIONAL DIGITAL WINCH: If you purchase a Digital
Winch, a mounting bracket is shipped with it. To mount
the Digital Winch, remove the detent pin from the winch
mounting bracket, place the slot on the lower edge of
the bracket onto the pin on the bracket on the Perimeter
Limiter mast and then rotate the winch toward the mast
until the upper holes in the two brackets align. Insert the
detent pin through the holes in both brackets. Make sure
the detent pin goes all the way through both brackets and
clicks into place. See Figure 9. Route the winch’s wire rope
over the roller at the top of the mast and over the pulley at
the center of the mast arm. Refer to the Digital Winch user
instruction for proper use and inspection.
3.8 CONNECTING TO THE PERIMETER LIMITER ANCHOR:
Figure 7 illustrates the proper connection of
typical fall arrest equipment to the Perimeter Limiter anchor. Always protect the lifeline from abrading
against sharp or abrasive surfaces on the roof. Make sure all the connections are compatible in size, shape
and strength. Never connect more than two personal protective system to a Perimeter Limiter at a time.
SRL: Connection to the installed Perimeter Limiter anchor may be made by using a carabiner to attach a
self retracting lifeline (SRL) to one of the anchor points on the mast arm of the Perimeter Limiter and then
attaching the self locking snap hook at the end of the SRL lifeline to the back dorsal D‑ring (fall arrest
attachment point) of the user’s body support (i.e. full body harness). When connecting, make sure the
connections are fully closed and locked. Review section 3.2 if using an SRL near sharp edges.
Figure 9 - Digital Winch
Detent Pin
