Chapter 3 — WIND EQUIPMENT 



so that the pivot slots (fig. 3-4 (C)) in the 

 mechanism side plates are seated on the pivots 

 mounted in the case. Return the mechanism 

 to its normal operating position. Lower the 

 operation levers over the chart drive roll. 



Installation of Ink Tanks 

 and Pens 



Fill both ink tanks about three-fourths full 

 through the pen opening; use the ink and ink 

 tank filler furnished with the recorder as shown 

 in figure 3- 5(D). Do not use standard writing 

 inks. Keep the bottle tightly capped to prevent 

 dirt from getting into the ink. 



Raise the scale plates and insert the ink 

 tanks in the receptacles on top of the speed 

 and direction mechanism assemblies and see 

 that they are under the spring clips. 



Set the pen elements in the pen element 

 forks (penholder) by seating the knife edges 

 of the elements into the slots of the fork. 



NOTE: The ink tanks and pens may be 

 installed or removed for servicing when the 

 chart drive mechanism is removed, tilted for- 

 ward, or is in its operating position. 



Zeroing Speed Pen 



With the chart drive mechanism installed 

 and a chart installed in the drive mechanism, 

 loosen the thumbscrew securing the speed pen 

 zero adjustment lever and adjust the speed pen 

 to read zero on the chart (not the scale). 

 Disconnect the leads from the synchro follower 

 for this adjustment. 



Filling Pens 



Fill the ink tank with the ink tank filler 

 furnished with the recorder. Compress the bulb 

 of the ink tank filler and lay the flat side 

 of the soft rubber tip on the chart. Insert 

 the penpoint into the hole in the rubber tip 

 and let the filler suck in ink from the ink 

 tank through the pen. The pen feeds from the ink 

 tank by capillary action once it is filled. 



Remove the pen element from the filler. 

 The pen should rest lightly on the chart. 



Swing the pen across the chart a few times. 

 If it does not write properly, the pen probably 



has an air bubble in it, In which case the pen 

 filling operation must be repeated. 



NOTE: Do not apply power to the recorder 

 when the direction pen is being swung. 



Be sure that the pen is properly seated and 

 that it does not rub on the ink tank. Also, check 

 to see that it does not rub on the indication 

 scales and the pen lift bar when they are in 

 their operating positions. The indicating flag 

 above the pen must not touch the scale plate. 



NOTE: The pen element is correctly balanced 

 at the factory when full of ink and will stay 

 off the chart until the pen is filled. 



Setting Chart to Time 



With the power cable connected and all 

 power switches in the ON position, turn the 

 chart set knob until the correct time line on 

 the chart Is under the pens. (See fig. 3-5(C).) 



NOTE: After time setting the chart, do not 

 tilt the chart drive mechanism forward; power 

 supplied to the chart drive motors will 

 be interrupted, thus losing the time setting. 



Unrolling Chart for Examination 



The chart record may be unrolled from the 

 takeup reel while the chart mechanism is 

 operating by grasping the chart on either side, 

 near the takeup reel, and pulling the chart from 

 the reel. Be careful to keep the chart straight 

 and taut as it is allowed to rewind on the reel. 



Removing Chart From 

 Takeup Reel 



Remove the chart from the takeup reel by 

 first removing the reel from the recorder. 

 Then pull the plain flanged end from the core 

 of the reel. Slide the chart off the core. 



Transmitter and Indicators 



The transmitter requires no operating pro- 

 cedures. The only operation necessary for 

 Indicator ID-300 is the adjustment of the light 

 rheostat and switching the range selector switch 

 as desired. Indicator ID-586 requires no 

 operating procedures. 



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