5.2.3 Cables 



The cables for interconnection of the components of the 

 system contain multiple pairs of shielded conductors and 

 should not be subjected to great compressive forces . 

 Regular inspections should be made to ensure the inte- 

 grity of the outer jacket and repairs made with self- 

 vulcanizing silicone rubber tape as required. 



After each use of the system the cable should be wiped 

 clean of any grease or oil using a soft cloth dampened 

 with varsol or mineral spirits, then wiped again with 

 rubbing alcohol. This will ensure long life of the 

 P.V.C. outer jacket. 



Caution : Do not use solvents such as acetone or MEK as 

 this will dissolve the material in the jacket 



5.2.4 Sensor Head 



This component of the system is subjected to the worst 

 abuse in regular service. It must be cleaned often using 

 mineral spirits or vairsol to remove the large amounts of 

 grease and oil that accumulate on it. 



When cleaning remove the plastic guides and metal inserts 

 and wash them separately in a tray of cleaner using a 

 small short bristled brush. 



When cleaning the rest of the body particular attention 

 should be paid to the roller assemblies to ensure they 

 turn freely and are not restricted from good contact with 

 the rope by accumulations of grease or dirt. 



Caution : Great care must be taken to prevent damage to 

 wires or connectors or the ingress of foreign 

 matter into either the connectors or the elec- 

 tronics area of the head. 



A-48 



