Operation And Use - 3M AC40 Series User Instruction Manual

3.0 INSTALLATION
3.1 PLANNING: Plan your Fall Protection System prior to installation of the Rope Grab. Account for all factors that may
affect your safety before, during and after a fall. Consider all requirements, limitations and specifications defined in
Section 2 and Table 1.
3.2 INSTALLING THE ROPE GRAB: The Rope Grab can be installed on approved vertical lifelines meeting the
requirements specified in Table 1. The vertical lifeline must be attached to an anchorage point meeting the
requirements of Section 2. To install the Rope Grab:
Step 1. (See Figure 10) Remove the pivot pin (C) by pushing on the collar. Pull the pivot pin from the cam/clamp
Move the cam/clamp (B) to one side and insert the Rope (E) into the body of the Rope Grab.
Step 2. The arrow on the body (D) must point upwards and in the same direction as the top anchor connection of
the rope (E). Reposition the cam/clamp and insert the pivot pin (C) fully through the body and the cam/
clamp. Check that the pivot pin is locked. Button (F) must be fully exposed and extended out from the
pivot pin (C) shaft.
Step 3. Confirm that the cam/clamp is replaced correctly. Verify that the up arrow is orientated in the same
direction as the up arrow on the Rope Grab body.
3.3 POSITIONING THE ROPE GRAB ON THE ROPE LIFELINE: To position the Rope Grab:
Step 1. To move the cam/clamp on the Rope, raise or lower the Rope Grab to the new position while ensuring the
cam/clamp is in contact with the Rope.
Step 2.
Check that the cam/clamp will lock onto the Rope by pulling it downwards. Position the Rope Grab at or
above your back D-ring to minimize free fall distance.
Step 3.
To check the locking action of the Rope Grab, lift up the cam/clamp and release. The Rope Grab must
lock onto the Rope. If the Rope Grab does not operate correctly, repeat attachment steps listed in
section 3.2.
3.4 REMOVE ROPE FROM ROPE GRAB
(See Figure 10) Remove the pivot pin (C) by pushing on the collar. Pull the pivot pin from the cam/clamp. Move the
cam/clamp (B) to one side and remove the Rope (E) from the body of the Rope Grab.
4.0

OPERATION AND USE

4.1 BEFORE EACH US: Verify that your work area and Personal Fall Arrest System (PFAS) meet all criteria defined in
Section 2 and a formal Rescue Plan is in place. Inspect the Rope Grab per the 'User' inspection points defined on
the "Inspection and Maintenance Log" (Table 2). If inspection reveals an unsafe or defective condition, do not use
the system. Remove the system from service and destroy, or contact 3M regarding replacement or repair.
4.2 CONNECTING TO ANCHORAGE OR ANCHORAGE CONNECTOR: See Figure 11. When attaching the lifeline or
lifeline subsystem to the anchorage or anchorage connector, ensure the connector (self-locking snap hook) is fully
engaged and locked onto the connection point. Ensure connections are compatible in size, shape, and strength.
Refer to the anchorage connector and lifeline manufacturer's instructions for further information.
4.3 CONNECTING TO THE BODY SUPPORT: Anchor points for Fall Arrest are marked by capital letter "A". For Fall
Arrest applications connect to appropriate dorsal or sternal attachment element of the full body harness. For Fall
Restraint applications, the dorsal or frontal harness attachment may be used. If using a body belt for restraint
applications connect to the D-ring opposite the restraining load. Ensure connections are compatible in size, shape,
and strength. Refer to the body support manufacturer's instructions for more information on making connections.
4.4 CONNECTING TO THE ROPE GRAB: Some rope grab models may be supplied with a permanently attached
lanyard or energy absorber. Do not attempt to attach additional lanyards or connectors to these subsystems. If
using a carabiner to connect directly to the rope grab, ensure the carabiner will not interfere with the operation of
the rope grab. Carabiners must be of the self-closing/self- locking type. Ensure connections are compatible in size,
shape, and strength. Ensure the connector attached to the rope grab allows the handle to rotate freely, and does
not interfere with the rope grab operation.
4.5 EDGE TESTED: The specified equipment (see Figure 1) is qualified for use over burr free steel edge with a radius
(r) of 0,5 mm (0,02 in.). Similar edges can be found on: rolled steel profi les, wooden beams, or clad or rounded
roof parapets. However, the following shall be considered when the equipment is used in a horizontal or transverse
arrangement and a risk of fall from a height over an edge exists:
• If the risk assessment carried out before the start of the work shows that the edge is very "sharp" and/or not
"free of burrs" (such as in the case of an unclad roof parapet, a rusty girder, or a concrete edge): Relevant
measures shall be taken before the start of the work to prevent a fall over the edge; or before the start of
work, an edge protection shall be mounted; or the manufacturer shall be contacted.
• The anchor point may only be situated at the same height as the edge at which a fall might occur or above the
edge.
• The angle of redirection of the rope at the edge at which a fall might occur (measured between the two sides
formed by the redirection rope) shall be at least 90 degrees.
• To reduce the potential for a fall ending in a pendulum movement, the working area or lateral movement on
either side of the center axis shall be limited to a maximum of 1,50 m (4,92 ft.).
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