ARMY *TM 9-6115-464-34 AIR FORCE TO-35C2-3 ... - Igor Chudov

ARMY TM 9-6115-464-34AIR FORCE 35C2-3-445-2NAVY NAVFAC P-8-624-34(2) Economizing Switch.(a) Apply 24 Vdc to connector pins A and B (See figure 3-105).(b) Adjust placement of switch (88, figure 3-101) on bracket (89) so that green button of switch isactuated by operator (57).(c) Check that the switch button is fully depressed, and allow 0.010 inch clearance between the switchbutton and the operator.(d) Remove 24 Vdc. White button of switch should be actuated by Iower tab of operator. If not, bendtab to actuate switch.(e) Repeat steps (a), (c) and (d) to check switch operation.(3) Auxiliary Contacts.(a)(b)(c)(d)(e)(f)(g)(h)(i)These contacts should be adjusted so that the deflection on the guide leaf springs is nearly equal inthe energized and de-energized positions. Adjust screws (60) and nuts (62) to accomplish this.With feeler gauge, measure any gap between operator (71 ) and detent (55), on both sides.Insert a feeler gauge equal to the measured value plus 0.018 inch between (71) and (55), on bothsides.Using an ohmmeter to determine continuity, adjust the stationary contacts of the normally closedcontacts until they just touch the movable contacts (see figure 3–105 for contact positions).Replace the feeler gauges with a feeler gauge equal to the measured value plus 0.025 inch andrecheck for open circuit of normally closet contacts. Readjust if necessary.Insert 0.018 inch feeler gauge between operator (71) and frame (76).Apply 24 Vdc to connector pins A and B.Using an ohmmeter to determine continuity, adjust the stationary contacts of the normally opencontacts.Replace the 0.018 inch feeler gauge with a 0.025 inch feeler gauge by removing and reapplying 24Vdc. Recheck for open circuit of normally open contacts. Readjust if necessary.(4) Contact Overtravel.(a) Tighten nuts (39) until Iockwashers (40) are flat.(b) Attach an ohmmeter to terminals A1-A2.(c) Insert a 0.035 inch feeler gauge between operator and frame (76).(d) Energize coil by applying 24 Vdc across connector pins A and B (See figure 3-105).(e) Check for continuity at a clearance of 0.035 inch and for open circuit at 0.040 inch.(f) If these requirements are not met, select the proper thickness of washer (53, figure 3-101) untilthey are met.(g) Repeat steps (b) through (f) for terminals B1-B2 and C1-C2.(5) Preload of Contacts.(a) Using a force gauge, check each individual contact at its edge. Preload should be 1.5 to 2.5pounds.3-228