3M FLEXIGUARD, User Instruction Manual

12



Prior to installation and use of this equipment, record the product identi

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 cation information from the ID label in the 

Inspection and Maintenance Log (Table 2) at the back of this manual.

PRODUCT DESCRIPTION:

Figure 1 illustrates the Flexiguard

®

 Counterweight Trailer Fall Arrest System. The Counterweight Trailer Fall Arrest System is 

a vehicle towed fall protection systems with overhead anchorage connections for two people. They are intended for use as 

anchorage in a Personal Fall Arrest System (PFAS). 

Figure 2 illustrates components of the Counterweight Trailer. See Table 1 for Component Speci

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 cations. The system is comprised 

of two Boom Arms (A) Anchorage Connection Points (B) mounted on an Adjustable Mast (C) extending from a Counterweighted 

Trailer (D). The base of the Adjustable Mast has a Hand Crank Chain Drive (E) to adjust the height of the Mast. The 

Counterweighted Trailer is equipped with a Lunette (Pintle) Ring (F) or Ball Coupler for towing behind a vehicle with an SAE Class 

4 Hitch. Leveling Jacks (G) and a Tongue Jack (H) are used with an onboard Slope Indicator (I) to stabilize and level the system. 

Table 1  –  Speci

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 cations

System Speci

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 cations:

Capacity

:

One SRL per each Boom Arm Shock Absorbing Anchorage Point.

1 Person per SRL with a combined weight (clothing, tools, etc.) less than or equal to 310 lbs (141 kg).

Tow Vehicle:

The Tow Vehicle and Hitch Receiver must be properly equipped to handle the System Speci

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 cations (System Weight, Tongue 

Weight, etc.).

Anchorage:

Structure supporting the Counterweight Trailer Fall Arrest System must withstand a 7,000 lb (31 kN) vertical load.

Anchor Height:

Adjustable Mast allows for 12.75 ft - 20.5 ft (3.88 m - 6.25 m) Anchor Height.

Offset:

3.9 ft (1.19 m)

Total System 

Weight:

Approximately 5,700 lb. (2,585 kg) with Concrete

System Tongue 

Weight

Approximately 570 lb (259 kg)

Component Speci

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 cations:

 Figure 2 

Reference

Component

Materials

Note:

A

Head Assembly and Boom Arms

Steel

Maximum Capacity: 1 person up to 310 lbs 

(141 kg) including clothes, tools, etc. per Boom 

Arm and Anchorage Connection Point

B

Anchorage Connection Points

Alloy Steel

C

Adjustable Mast

Aluminum and Steel

D

Counterweighted Trailer

Frame - Steel

Drawbar - Steel

Counterweight - 0.75 yds of 

4,000 psi Concrete

Dry Trailer Weight: 1,197 lb (542.95 kg)

Dry Tongue Weight: 154 lb (69.85 kg)

Weight with Concrete: 4,097 lb (1,858.37 kg)

Electrical System: 12 Volt

Counterweight: 2,900 lb (1,315.42 kg)

E

Hand Crank Chain Drive

Crank - Steel

Base - Aluminum

Chain Cover - Steel

Chain - Steel

Gears - Steel

F

Lunette (Pintle) Ring or Ball Coupler

G

Leveling Jack

Steel

H

Tongue Jack

Steel

I

Slope Indicator

Plastic

1  Anchorage Connection Points:

 Each Anchorage Connection Point has been tested and veri

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 ed to a safety factor of 2:1 per OSHA.