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AVANTI Service Lift for Wind Turbines

Appendix B: Stomp-test Instruction

Supplementary way to inspect the ASL during Daily Inspection before Operation

Purpose

This instruction is a supplementary part of the Daily
Lift Checking to be used by authorized users and
Certified technicians. The information describes a
recommended and supplementary way of how to
check the over speed triggering and arresting
function in the Avanti Safety Fall Arrest Device
model ASL. Second, the test also documents that
the Safety Brake maintains its grip on the Safety
Wire after engagement. This extra testing we name
the “Stomp-test”. This stomp-test-method is
supplementary to the given daily obligation in your
manual explaining “to descend the lift, manually
engage the FAD (Fall Arrest Device), verification by
short no-powerdescent, unloading the FAD again
by ascending and observing centrifugal weigh unit
through the window during lift use”. With the
“Stomp-test” we test the ability of the FAD to trigger
in case of over speed and arrest the load.

Tools:

None

Measurement Equipment:

None

Validity

It is applicable for testing the installed Safety Fall
Arrest Device (ASL) on-site. The test must only be
performed by trained users/Certified technicians
and always with respect of all the relevant safety
regulations.

Cautions

Be aware that the instruction only explains the
steps of how to execute the “Stomp test” in the lift
installation; it doesn’t guide any safety precautions
and the necessary use of safety equipment.

Therefore, Avanti strongly recommends you to
read and understand what the physical work steps
in the “Stomp-test” are, and then execute your
own Risk and Hazard Assessment according to
the valid safety working procedures in your own
organisation before starting the test.

1. Test Preparation

The cabin (with 1 person inside) is ascended with
a service lift user inside, and the cabin bottom is
positioned (“parked”) in a height of app. 3 m/10 ft.
above the bottom landing floor platform.

2. Test Step

With the cabin in “parked” position app. 3 m/10 ft.
above the bottom landing floor, the user starts
descending by electrical power using the push
down button. When the cabin starts descending
the user executes a hard stomp with one foot in the
cabin floor – The hard stomp is executed by lifting
one foot, so the lower leg is positioned with a knee
angle of 90 degrees – Then immediately after the
foot is stomped in the cabin floor

- The user must make sure to have a solid footing

during the foot stomp!

The foot stomp should engage the ASL and arrest the
electrical descent of the cabin, the red light (if existing
in the control box) should turn “on” and the cabin load
should be hanging on the FAD/Safety Wire.
If the ASL doesn’t arrest at the first trial, then re-
establish the cabin in the position described in the
preparation part mentioned above and execute the
“Step” once again stomping a little harder.

3. Test Result

If the ASL activates properly after the stomp, the
ASL will now hold the cabin on the Safety Wire.
In order to ensure important maintaining grip by the
Safety Brake, the user then activates the manual
descent function and result shall be a Safety Fall
Arrest Device ASL holding the cabin fixed on the
Safety Wire (manual descending is not possible).

- If the activated ASL fixes the cabin on the Safety

Wire while manual descent is activated, the
Safety Fall Arrest Device (ASL) is in good and
operational condition.

In order to release the activated ASL push the
ascent button up a little before releasing the ASL
by the unlocking handle.

If the ASL can´t activate

after first or second

“Stomp-test”, or can´t fix the cabin in activated
position

- User

must

immediately bring the cabin down

and park it at the bottom landing platform floor.

- Lock Out the installation from use and contact

Avanti for further approach!