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OPERATION
4-16 / Mid-Mount Ascendant Aerial Tower
© 2021 Pierce Manufacturing Inc. All Rights Reserved.
4-4.4 Operating with Personnel on the Ladder
Allowing personnel onto the aerial ladder or aerial platform must be done in strict conformance to the applicable load
chart based on the conditions present. Determine the safe load limits and plan to ensure that the load limits will not
be exceeded as personnel or rescue victims move along the ladder or enter the platform.
Follow these procedures before allowing climbers onto your ladder!:
NOTE: The breathing air system is easier to activate prior to raising the aerial out of the boom support due
to the location of the controls.
• Activate the breathing air valves at the air bottles and check the gauge(s) if breathing air will be used.
• Keep people away from the ladder and other moving parts until the aerial device is positioned and movement
has ceased.
• Position the aerial device so that it will not need to be extended or retracted once personnel have begun their
climb.
• Position the aerial device relative to the fire, smoke, or other hazard so that it can be moved out of harms way
using ONLY the rotation, raise, or lower functions. NEVER extend or retract with personnel on the ladder.
• Align the ladder rungs for climbing.
• Ensure that climbing personnel are equipped with ladder belts and tethers.
• Ensure that climbing personnel have both hands and feet free for climbing. Keep loose equipment in pockets,
packs, or otherwise securely tethered in ways that will not interfere with the climb.
• Ensure that rungs are free of ice or other slippery substances.
• Once personnel are on the ladder, never reposition without first ensuring that they have quit climbing and are
properly tethered to a structural feature on the device.
4-4.5 Operating with Personnel in the Platform
Primary Operator
A trained, experienced, and authorized operator must be stationed at the primary controls at the turntable during the
entire time your aerial platform device is being operated, and any time there are personnel on the ladder or in the
platform.
Entering the Platform
If the platform has been positioned on the ground, you may enter through one of the gates at the front of the platform.
Close and latch the gates once all personnel have entered. Never allow more personnel to enter than the load chart
allows.
If the platform has been elevated, you may enter by climbing the ladder maintaining three points of contact at all
times and entering through the back of the platform. If you need to pause to rest on your way up the ladder, be sure
to clip your ladder belt tether to a structural feature. Unclip and proceed only after you are physically able. Lift the
gate to enter the platform. Close and latch the gate once all personnel have entered. Never allow more personnel
to enter than the load chart allows.
The horizontal area outside of the platform is intended to aid in entry or egress only. All personnel should be inside
the platform or secured on a rescue basket using the LyfeSupport™ option any time the aerial device is off the
ground.
Ladder Belt Anchors
Once you have entered the platform, locate a ladder belt anchor and clip your ladder belt tether to it. You should
remained tethered to the platform until the aerial device has been properly positioned and you get the all clear from
the primary and secondary operators that it is safe for you to unclip and proceed out of the platform.