background image

IMPORTANT!!  

All persons using this equipment must read, understand and follow all instructions. Failure to do so may result 
in serious injury or death. Users should be familiar with pertinent regulations governing this equipment. All indi-
viduals who use this product must be properly trained in its use. If a fall occurs, the Miller Grip must be dis-
posed of according to the manufacturer’s instructions. 

 

Miller Grip

 

Friction Bolt 

 

Anchorage Connector — Model #494  

 

Portable/Reusable Anchorage Connector 

DESIGNED FOR USE WITH A 39mm FRICTION ROCK BOLT

 

The Miller Grip Friction Bolt Anchorage Connector Model #494 is designed for: 

x

single-user fall protection anchorage applications 

x

Miller approved horizontal and vertical lifeline anchorage applications

 

I307 Rev A—Page 1 of 4 

 

WARNING!! 

x

All warnings and instructions shall be provided to authorized 
persons/users. 

x

Proper precautions should always be taken to remove any 
obstructions, debris, material, or other recognized hazards 
from the work area that could cause injuries or interfere with 
the operation of the system. 

x

Always inspect unit according to manufacturer’s instructions 
prior to each use. Do not use this device if any components 
are damaged, cracked, broken, or deformed. Do not use the 
device if it does not operate smoothly and properly. 

x

All equipment should be inspected by a qualified person on a 
regular basis. 

x

To minimize the potential for accidental disengagement, a 
competent person must ensure system compatibility. 

x

Fall arrest systems used with the anchorage connector must 
be rigged in accordance to regulatory requirements.  (All in-
structions and warnings provided with the components of the 
personal fall arrest system must be read, understood, and 
followed.) 

x

Ensure that the anchor point, in combination with the con-
necting device,  is at a height that limits free fall distance to 6 
feet (1.8m) or less. 

 

Specifications 

Model 

No.: 

     494 

Compatible Friction Bolt Size:   

39mm (1-1/2 in) 

Maximum 

Capacity: 

   400 

lbs 

(181.4kg) 

Minimum Tensile Strength:  

 

10,000 lbs (44kN) 

Compliance: 

     OSHA 

ANSI 

Z359.1 

 

For use by ONE PERSON ONLY* 

*May be used for two persons in Miller approved lifeline 

anchorage applications only 

 

Color Coded with Bright Green Thimble 

to Indicate “FALL PROTECTION USE ONLY” 

 

Materials 

Main 

Cable: 

     7x19 

Galvanized 

Cable 

Swage, Stop Sleeves, Spoons:  

304 Stainless Steel 

Trigger: 

      6061 

T-6 

Aluminum 

Cleaning 

Bushing:    Zinc 

Plated 

Steel 

Spring: 

      Zinc 

Plated 

Spring 

Steel 

Swage: 

      Zinc 

Plated 

Copper 

Return 

Wire: 

     1x19 

Galvanized 

Cable 

Thimble: 

      Polyurethane 

 

MADE IN THE USA 

Spoons 

Conical End Fitting 

Stop Sleeves 

Trigger 

Spring 

Swage 

Anchor Loop/ 

Galvanized Thimble 

Cleaning Bushing 

Return Wire 

Main Cable 

8 April 2011 / 6 June 2011 (HSP) 

Summary of Contents for Miller Grip 494

Page 1: ...the device if it does not operate smoothly and properly x All equipment should be inspected by a qualified person on a regular basis x To minimize the potential for accidental disengagement a competent person must ensure system compatibility x Fall arrest systems used with the anchorage connector must be rigged in accordance to regulatory requirements All in structions and warnings provided with t...

Page 2: ... and locked when in use Refer to sepa rate instructions supplied with the connecting device x Always work directly under the anchor point to avoid a swing fall injury x Always check for obstructions below the work area to make sure potential fall path is clear and allow adequate fall clearance below the work surface x The authorized person user shall have a rescue plan and the means at hand to imp...

Page 3: ...t include an inline energy absorber that is designed to keep the forces on each anchorage connector to a maximum of 3 789 5 lbf 16 9kN This force requires that the anchorage connectors and the substrate to which they are attached must be capable of supporting 7 579 lbf 33 7kN in the direction of pull The Miller Grip Fric tion Bolt Anchor has been tested and rated for 10 000 lbs 44kN to meet OSHA s...

Page 4: ...occurred Storage and Cleaning 1 Blow off unit after each use with compressed air 2 Store in clean dry environment 3 Store in secure locked area 4 Store and put away at the end of each work day unless anchor is being used as part of a temporary horizontal lifeline system The mining industry can be a highly abusive environment It is important that you take proper care of the anchorage connector and ...

Reviews: