length to be tested 



Drum Q ^ 

 End « 



dl 



-h- 



Orientation of head on 

 first test. 



o 



d2 



Conveyance 

 End. 



length tested in first test 



Fig. 4.14 Working length of Rope 



m 



m 



m 



Un 



#T 



Itii 



litE 



Zero 



dl 



Fig. 4.15 Change in LMA zero when passing the start of 

 the first test. 



The danger of this transition is that it may be mistaken 

 as an actual change in the rope condition. If there is 

 confusion as to where dl is on the charts of the two 

 successive tests, the charts should be overlapped. 



A-40 



