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76J Pneumatic Fulscope Recorder
MAINTENANCE
5. Rotate chart and place pen on a time line near 0%. Move pen up scale and observe if
pen point follows the arc of the time line.
If pen point tracks above the time line, slide the pen up the arm.
If pen point tracks below the time line, move the pen down the pen arm.
Repeat pen location adjustment and test until pen tracks the time line.
6. Refer to Figures, 14, 15 and 16 and select measuring element view that resembles type
being adjusted. Center measuring element in mounting screw slots and tighten screws.
7. Center span adjustment in slot of take-off arm.
8. Apply 50% input as indicated on test gage or thermometer.
9. Connect link to take-off arm pivot using scribed hole, Figure 13.
10. Loosen coarse zero lock screw(s) and adjust coarse zero for midchart pen position.
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Figure 13. Adjusting Pen Arm Micrometer Screw
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