II. OPERATING INSTRUCTIONS 



A. Assembling Staff and Preparing for Lowering 



1. Lay out on deck the three sections of the wave staff, the 

 damping disk, weights, suspension line, electrical cable, floats 

 and retrieving line, 



2. Check the contacts on the step-resistance gage to see that 

 they are clean and bright. If necessary, burnish the contacts lightly 

 with fine emery cloth to produce a bright surface. Rubdown the gage 

 section with a clean dry cloth and apply DCli grease sparingly as often 

 as required to produce a water repellent surface, avoiding the contact 

 points. Grease the end fittings of all three sections. 



3. Assemble the three sections of the staff. Thread the 1-inch 

 bolt on the bottom end of the staff. 



h. Secure the damping disk to the bolt at the lower end of the 

 wave staff by means of the suspension line and shackles provided so 

 that the face of the damping disk is twenty feet from the lower end 

 of the staff. 



5. Shackle the fifteen-pound weight to the eye on the under side 

 of the damping disk. Note: Sufficient weight should be used to float 

 the assembly with about six feet of the step-resistance gage section 

 exposed in calm water. On some staffs and in some areas this requires 

 the U3e of the ten pound weight only. 



6. Plug in the cable to the gage by means of the Joy plug and 

 wrap with two layers of Scotch electric tape. Next tape the electrical 

 cable along the rear of the three sections of the staff and the bolt 

 eye at the bottom. 



7. Make fast the end of the 1,000-foot cotton retrieving line 

 to the eye on the edge of the damping disk. 



8. Secure two 30- to hO-foot handling lines to the staff just 

 above the two joints. 



9. Attach the life ring or floats to the electrical cable either 

 by manipulating the cable through the ring and the ring through the 

 resulting cable loop, or by utilizing map hooks and tape. The first 

 float should be 7f> feet from the bottom of the staff and the rest 

 approximately 100 feet apart. 



10. Set the gage on deck with the contact points upright and 

 clear of all metal objects. 



