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16

3.0 Installation

3.1 PLANNING:

 Plan your fall protection system before starting your work. Account for all factors that may affect your safety 

before, during, and after a fall. Consider all requirements and limitations defined in Section 2.

 

3.2 ANCHORAGE:

 Figure 9 illustrates typical SRD anchorage connections. Select an anchorage location with minimal free fall and 

swing fall hazards (see Section 1). Select a rigid anchorage point capable of sustaining the static loads defined in Section 1. 

Where anchoring overhead is not feasible, Nano-Lok SRDs may be secured to an anchorage point below the level of the user’s 

Dorsal D-Ring. For users up to 310 lbs (140 kg), the anchorage point must not be more than 5 ft (1.5m) below the Dorsal 

D-Ring. Refer to Figure 4 for approved Anchor locations.

 

;

Do not tie off in dotted area of clearance charts (Figure 4).

3.3   HARNESS MOUNTING:

 The Nano-Lok Wrap Back SRDs include an interface for mounting on a Full Body Harness just 

below the Dorsal D-ring. The worker can then connect the lifeline end of the SRD to anchorage points located thoughout 

the work site. To mount the Wrap Back SRD on a Full Body Harness (see Figure 8):

 

;

Some Full Body Harnesses are equipped with a Personal SRD Link (PSRD Link) that integrates the Dorsal 

D-Ring with attachment elements for Harness Mounted Self-Retracting Devices 

(Figure 7). 

1.  Loosen the Harness Webbing:

 Pull out on both Shoulder Straps (A) where they pass through the bottom of the 

Dorsal D-Ring (B) until there is sufficient space to slide the locking pin between the Shoulder Straps and Back Pad.

2.  Open the Harness Interface:

 Push down on the Locking Buttons (C) simultaneously and slide the Locking Pin (D) 

out.

 

;

Both locking pins must be fully depressed to allow the locking pin to slide out. To slide the locking pin open, 

apply firm pressure to both locking buttons with the thumbs while simutaneously pulling on the locking pin head 

with an index finger.

3.  Insert the Locking Pin Through the Shoulder Straps:

 With the Locking Buttons (C) facing out and Locking Pin 

facing up, insert the Detent Pin (D) of the Harness Interface (E) behind both Shoulder Straps (A) and lock in place. 

Pull the shoulder Straps back through the Dorsal D-Ring and Back Pad to remove slack.

4.  Connect Hook and Loop Straps around the Shoulder Straps:

 Open the hook and loop straps (F) located on the 

bottom of the Energy Absorber Pack. Wrap the hook and loop straps around the Shoulder Straps and secure.

 

;

The Red Band (G) on the knob end of the Harness Interface Locking Pin will be exposed if the Harness 

Interface is unlocked. To avoid accidental release of the connection, always make sure the Harness Interface 

is locked before using the Harness and attached SRD. Failure to do so could result in injury or death.

5.  Alternate Attachment Strap:

 The Nano-Lok Wrap Back SRD Attachment Strap (3100184), can be used as an 

alternative means of securing the bottom of the Nano-Lok Pack when the harness geometry precludes the use of the 

integral hook and loop straps. (See Figure 18) and refer to Placement Instructions below.

A.  Placement Instructions: 

Figure 18A, shows the Nano-Lok Wrap Back SRD Attachment Strap. 

1.  Note that t

he Nano-Lok SRD Attachment Strap uses hook and loop closures: Hook ends (1), loop ends  

 

(2).
2.  Position Attachment Strap hook ends (1) under the harness shoulder straps and loop ends (2) over energy         

 

absorber covers, as seen in Figure 18B.

3.  Wrap loop straps over energy absorber cover and harness shoulder straps. Secure snugly with hoop straps         

 

as seen in Figure 18C.

 

;

First time or infrequent users of Self-Retracting Devices (SRDs) should review the “Safety Information” at 

the beginning of this manual prior to use of the SRD.

6.  Web Loop Harness Adapter: 

The Nano-Lok SRL Web Loop Harness Adapter (P/N 3500046) (see Figure 19) is a web 

loop that allows the SRD to be used on harnesses that are not compatible with the SRD Harness Interface connector. 

This applies primarily to harnesses with fixed D-Rings that do no have enough slack in the harness web to allow the 

pin of the connector to pass through.

Step 1:  Position harness D-Ring (

1

) as shown.

Step 2:  From behind and at the bottom of the D-Ring, insert the Web Loop up through the D-Ring and fold the top  

of the loop down (

2

).

Step 3:  Pull the top of Web Loop (

3

) down through the bottom of the Web Loop.

Step 4:  Open the Nano-Lok SRL Harness Interface. Push down on the Locking Buttons (

4

) simultaneously and slide 

the Locking Pin (

5

) out. Position the Web Loop between the sides of the Harness Interface as shown.

Step 5:  Insert the Locking Pin (

6

) Through the Web Loop. Confirm that the Locking Pin has locked in the closed 

position. If properly closed, the Red Band on the Locking Pin will not be visible.

Summary of Contents for 3101653

Page 1: ... 191 kg 3101654 A 1 8 ft 2 44 m 310 lbs 140 kg 420 lbs 191 kg 3101659 B 2 8 ft 2 44 m 310 lbs 140 kg 420 lbs 191 kg 3101653 B 2 8 ft 2 44 m 310 lbs 140 kg 420 lbs 191 kg B ANSI Z359 14 Class B OSHA 1926 502 OSHA 1910 140 INSTRUCTION MANUAL 5903949 Rev B 1 2 Nano Lok WrapBack Self Retracting Device ...

Page 2: ......

Page 3: ...3 2 W r a p B a c k W r a p B a c k G H I K J L K H G K J H I K J L L 3 A B FC FF DD SF C FC H ...

Page 4: ... 1 0 3 FC V H 8 2 4 7 2 1 6 1 8 5 1 5 4 1 2 3 0 9 2 0 6 1 0 3 ft m 1 0 3 2 0 6 3 0 9 4 1 2 5 1 5 221 310 lbs 101 140 kg 8 ft 2 4 m 14 ft 4 3 m 16 ft 4 9 m 10 ft 3 0 m 12 ft 3 7 m 18 ft 5 5 m 20 ft 6 1 m 8 2 4 7 2 1 FC H 7 ft 2 1 m ft m 6 1 8 5 1 5 4 1 2 3 0 9 2 0 6 1 0 3 V 1 0 3 2 0 6 3 0 9 4 1 2 5 1 5 6 1 8 7 2 1 8 2 4 8 2 4 7 2 1 6 1 8 5 1 5 4 1 2 3 0 9 2 0 6 1 0 3 ft m 1 0 3 2 0 6 3 0 9 4 1 2 5...

Page 5: ...t 3 7 m 14 ft 4 3 m 16 ft 4 9 m 18 ft 5 5 m 20 ft 6 1 m ft m 8 2 4 7 2 1 6 1 8 5 1 5 4 1 2 3 0 9 2 0 6 1 0 3 FC V H 1 0 3 2 0 6 3 0 9 4 1 2 5 1 5 6 1 8 7 2 1 8 2 4 8 2 4 7 2 1 6 1 8 5 1 5 4 1 2 3 0 9 2 0 6 1 0 3 ft m 1 0 3 2 0 6 3 0 9 4 1 2 5 1 5 5 6 A B C ...

Page 6: ...6 7 8 1 B A 2 C G D C 3 W r a p B a c k C A E D 4 F F W r a p B a c k ...

Page 7: ...7 9 A B A C B E E D C C B A G F D H 10 A B C ...

Page 8: ...8 11 12 13 A A A C D A A B E A 14 15 16 A B C D C A B D A ...

Page 9: ...9 17 A C D E F B B G D E F C C C E D F B 1 2 3 C G 1 A 1 ...

Page 10: ...10 18 A 2 1 2 1 B 2 1 2 1 C ...

Page 11: ...11 19 1 2 3 5 4 6 ...

Page 12: ... the SRD Avoid sudden or quick movements during normal work operation This may cause the device to lock up Ensure that fall protection systems subsystems assembled from components made by different manufacturers are compatible and meet the requirements of applicable standards including the ANSI Z359 or other applicable fall protection codes standards or requirements Always consult a Competent and ...

Page 13: ...Stainless Steel Locking Pin Fasteners Zinc Plated Alloy Steel Screws Stainless Steel Rivets Locking Pawls Stainless Steel Main Shaft Stainless Steel Motor Springs Stainless Steel Connector Specifications Description Model Number Material Gate Opening Gate Strength Tensile Strength 1 Rebar Snap Hook 2000210 Steel 2 1 2 in 63 mm 3 600 lbs 16 kN 5 000 lbs 22 2 kN 2 WrapBack Rebar Snap Hook 9501804 St...

Page 14: ...will limit the free fall distance to 0 ft 0 cm 1 To avoid increased fall distances do not work above the anchorage level Do not lengthen SRDs by connecting a lanyard or similar component without consulting 3M Never clamp knot or prevent the lifeline from retracting or staying taut Avoid slack line Swing Falls Swing Falls occur when the anchorage point is not directly above the point where a fall o...

Page 15: ...unintentionally disengage see Figure 5 Connectors must be compatible in size shape and strength Self locking snap hooks and carabiners are required If the connecting element to which a snap hook or carabiner attaches is undersized or irregular in shape a situation could occur where the connecting element applies a force to the gate of the snap hook or carabiner A This force may cause the gate to o...

Page 16: ...Hook and Loop Straps around the Shoulder Straps Open the hook and loop straps F located on the bottom of the Energy Absorber Pack Wrap the hook and loop straps around the Shoulder Straps and secure The Red Band G on the knob end of the Harness Interface Locking Pin will be exposed if the Harness Interface is unlocked To avoid accidental release of the connection always make sure the Harness Interf...

Page 17: ...ap Back SRDs Never connect the Wrap Back snap hook of one SRD to the lifeline of another SRD or lanyard Failure to heed this warning may result in equipment malfunction serious injury or death 4 6 OPERATION Prior to use inspect the SRD as described in the Inspection and Maintenance Log Table 3 Figure 9 shows system connections for typical SRD applications Connect the SRD on the back of a Full Body...

Page 18: ...ng water and a mild soap solution Position the SRD so excess water can drain out Clean labels as required Clean the Lifeline with water and mild soap solution Rinse and thoroughly air dry Do not force dry with heat The lifeline should be dry before allowing it to retract into the housing An excessive buildup of dirt paint etc may prevent the lifeline from fully retracting back into the housing cau...

Page 19: ... or broken fibers Check for tears abrasions heavy soiling C mold burns D or discoloration Inspect stitching Check for pulled or cut stitches Broken stitches may be an indication that the Energy Absorber has been impact loaded and must be removed from service Wire Rope Lifelines Figure 15 Inspect wire rope for cuts kinks A broken wires B bird caging C welding splatter D corrosion chemical contact a...

Page 20: ... 29 Kitashinagawa Shinagawa ku Tokyo Phone 81 570 011 321 Fax 81 3 6409 5818 psd jp mmm com WEBSITE 3M com FallProtection I S O 9 0 0 1 FM534873 EU DECLARATION OF CONFORMITY 3M com FallProtection DOC U S PRODUCT WARRANTY LIMITED REMEDY AND LIMITATION OF LIABILITY WARRANTY THE FOLLOWING IS MADE IN LIEU OF ALL WARRANTIES OR CONDITIONS EXPRESS OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OR CONDITIONS...

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