Condux Hooked Hanger Sheave - Manual (Page 2)

1. Choose the correct size sheave depending upon the cable’s outer
diameter and the cable manufacturer’s recommended cable bending
radius. Refer to the Condux Cable Installation Equipment & Tools
Catalog for sheave dimensions.
2. Hang the sheave in the manhole using a rope attached to the
sheave support arm. Position the sheave so that the cable
contacts the sheave in a horizontal line.
3. Attach a load-rated chain between the sheave tie-down arm and
a pulling-in iron. If no pulling-in irons are present or usable, use a
Condux Jamb Skid.
4. If the sheave is angled away from the duct, use a Condux
alignment arm to keep the cable from jumping off the sheave.
For installation or removal from existing cables, the sheave tie-down arm
can be split and swung out of the way. Simply remove a locking pin from
the side of the arm and swing the yoke out of the way. Only the supplied
locking pin or grade 8 bolt should be used to lock yoke to arm.
Installation Procedure
!WARNING: Read, understand, and save all
procedure and safety instructions before using any
Condux ® Hooked Hanger Sheave. Failure to do so
could result in personal injury or property damage.
Save this user’s guide for future reference.
!ADVERTENCIA: Favor de leer y comprender todas
las instrucciones de operación y seguridad antes
de usar el Condux ® Hooked Hanger Sheave.
Si Ud. no comprende las instrucciones favor de
consultarle a su jefe.
ADVERTENCIA
Instrucciones de Operación
Figure 1.
Hanging Installation
!WARNING: Do not exceed the load capacities of the
Condux Hooked Hanger Sheave, the tie-down chain,
or the pulling-in iron. Severe personal injury or
property damage could result.
!CAUTION: Follow all manhole standard operating
procedures, including work area protection and gas
detection. Wear personal protective equipment: hard
hat, safety glasses, safety shoes, and leather work
gloves.
!WARNING: Do not remain in the manhole when
pulling cable. The cable is under tension. Severe
personal injury or death could result.
F = 10,000 lb.
F = 14,000 lb.
F = 10,000 lb.
F = 20,000 lb.
Figure 3. Force Applications
Load Rating Information
All Condux Hooked Hanger Sheaves are load rated for 10,000 pounds
of line tension. If used to guide cable around a 90° arc, the hanger arms
could be subjected up to 14,000 lbs of force. If used to guide cable
around a 180° arc, the hanger arms could be subjected up to 20,000 lbs
of force. All tie-down accessories must be load rated to handle these
pulling forces.
Figure 2.
Jamb Skid Installation
Sheave Support Arm
Alignment
Arm
Sheave
Sheave
Tie-down
Arm
Load-rated
Chain
Pulling-in Iron
Cable