Quantcast FIGURE  3-71.  Valve  Spring  Free!  Height

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ARMY TM 9-2815-254-24 AIR FORCE TO 38G1-94-2 FIGURE  3-71.  Valve  Spring  Free!  Height I . Check valve spring tension as follows: (1)   Install spring in spring tester, refer to FIGURE 3-72. Compress innerspring to 1.46 in. (37.0 mm) or outer spring to 1.54 in. (39.0 mm). (2)  Standard  pressure  to compress inner spring is 12.21 to 13.78 Ibs (5.55 to 6.25 kg), with a limit of 11.03 lbs (5.0 kg). Standard pressure to compress outer spring is 43.33 to 48.84 lbs (19.65 to 22.15 kg). with a limit of 39.69 lbs (18.0 kg) (3)  If  pressure  required  to compress spring is less than limit, replace spring. FIGURE   3-72.   Valve   Spring   Tension 3-120


 


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