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Introduction
Terms
Specifications
Cable
Construction
Portable
Marking
Unit
Stationary
Drum
1 Capstan
Stationary
Drum
2 Capstan
Steps
to Good
Cable Care
Calculating
Pull-Out Point
Rehead
Strenght
Calculations
Specific
Gravity
Weight
and Pressure
Table
Calculating
Stuck Point
When
Tool or
Cable is Stuck
Steps to Find
Stuck Point
Eliminating
Errors
Things
to check
Back to Manual Menu
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CABLE CARE
**NOTE**
Have a tailgate safety meeting and insure all safety steps have been taken prior to
proceeding with the following procedure.
-
Calculate
total cable tension at tool depth.
-
Calculate
the amount of cable stretch from -manufactures .'specifications for tool
depth. (Feet of stretch per thousand rfeet per thousand pounds.)
**NOTE**
Use 50/50 rule while determining stuck point. Do pullover 50% of cable total
breaking strength, nor 50% more than the weak link pull out point.
-
Slack
off, then pull until tension indicator reads calculate total tension.
-
Stop
reel and lock down reel brakes.
-
Flag
cable at fixed reference point where cable movement can be measured.
-
Unlock
reel brakes and pull an additional 1,000 pounds cable tension.
-
Flag
cable at fixed reference point again.
-
Measure
distance between flags.
-
Compare
measured stretch to calculated stretch (if measured stretch is less than
calculated stretch cable may be stuck above tool).
-
Repeat
procedure - either by slacking off 1000 pounds and pulling again, or by
pulling an additional 1000 pounds (total 2000 pounds over calculated cable
tension at tool depth). Always double check calculations and procedure.
**NOTE**
Keep Customer and your supervisor advised of all conditions, events and the
results.
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