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

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ARMY TM 9-6115-46-34AIR FORCE 35C2—3-445-2NAVY NAVFAC P-8-624-34(c) Vary the load while comparing the generator set kilowatt meter reading to that of the calibratedkilowatt meter.(d) If readings vary more than 1.33 percent, install thermal watt converter in a test setup using figure3-55 as a guide.(e) Adjust all auto transformers to the minimum position.(f) Close switch S-1 and open switches S-2 and S-3.(9) Energize Power source G-1 and adjust autotransformer T1 until 1 ampere is indicated on ammeter(h) Check indication of voltmeter V-1. Indication shall be 6.66 ± 0.04 millivolts.(i) Close switch S2 and adjust auto transformer T2 until 1 ampere is indicated on ammeter A2.(j) Check indication of voltmeter. Indication shall be 13.33 ±0.07 millivolts.(k) Close switch S3 and adjust auto transformer T3 until 1 ampere is indicated on ammeter A3.(l) Again check voltmeter indication. indication shall be 20.00+ 0.1 millivolts.(m) Replace thermal watt converter if it fails to perform as indicated.(n) If thermal watt converter performs as indicated, replace meter.(o) Refer to the Operator and Unit Maintenance Manual and install thermal watt converter.c. AC Current Meter.(1) Refer to the Operator and Unit Maintenance Manual for AC current meter adjustment, removal,cleaning, inspection, and installation procedures.(2) Test AC ammeter as follows:(a) Connect a calibrated test ammeter in series with the generator set current meter.(b) Connect a variable load to the generator set load terminal board.(c) Refer to the Operator and Unit Maintenance Manual and start the generator set.(d) Vary the load while comparing the indication of the generator set current meter to that of thecalibrated test ammeter.(e) Replace generator set current meter if its indication varies more than 2 percent of full scale valuefrom the indication of the test ammeter.d. Control Cubicle Relay Assembly.(1) Removal.(a) Tag and disconnect electrical leads to relay assembly.(b) Remove nut and captive washer assemblies (1, figure 3-56) to remove relay assembly (2).(2) Disassembly.NOTETest relay assembly as outlined in subparagraph d. (5) below prior to disassembly.(a) Identify any parts removed to facilitate assembly.(b) Disassemble relay assembly only as is necessary to replace damaged or defective parts.(c) Remove nut and captive washer assembly (1 and 2, figure 3-57), screw (3) and terminal board (4).3-132
ARMY TM 9-6115-464-34AIR FORCE TO 35C2-3-445-2NAVY NAVFAC P-8-624-34(d) Remove nut (5), Iockwasher (6), flatwasher (7), screw (8), relay (9) k6, and spacer.(e) Remove relay (11) k1.(f) Remove rectifier (CR1).(g) Remove resistor (R10).(h) Remove printed circuit board (14).(3) Cleaning, Inspection, and Repair.(a) Clean relay assembly with filtered compressed air and a soft bristled brush.(b) Visually inspect terminal boards for cracks, burns, and corroded or damaged terminals.(c) Inspect relays (K1 and K6) for cracks, corrosion, and evidence of shorting.(d) Inspect resistor (R10) for burns, damaged leads and insecure mounting.(e) Inspect silicone rectifier (CR1) for cracks, burns, and evidence of shorting.(f) Inspect printed circuit for cold solder joints, evidence of component overheating, and damage tothe polyurethane coating.NOTEPrior to coating, deaerate resin by evacuating at room temperature to 5 to 10 Hgabsolute to remove air bubbles.(g) Check all components for illegible markings.(h) If any circuit board component must be replaced or encapsulating coating repaired or replaced,refer to Appendix A references for detailed procedures. Repair/replace encapsulation by applying a0.007 inch (minimum) coating of polyurethane resin (Scotchcoat 221, Minnesota Mining and Mfg.Co. or equal).CAUTIONSolder joints and components leads shall not protrude more than 0.094 inch beyondsurface of printed circuit board. Failure to observe this caution could result in damageto the equipment.WARNINGAvoid breathing fumes generated by soldering. Eye protection is required. Failure toobserve this warning could result in servere personal injury or death.(i) Solder in accordance with requirement 5, MIL-STD-454.(4) Assembly.(a) Install printed circuit board (14).(b) Install resistor (13) (CR1).(c) Install rectifier (12) (CR1).(d) Install relay (11) K1.(e) Install spacte (10), relaly (9) K6, screw (8), flatwasher (7), lockwasher (6) and nut(5).(f) Install terminal board (4), screw (3), nut and captive washer assembly (2 and 1).3-133
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(c)(d)(e)Pull all slack from the le
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ARMY *TM 9-6115-464-34 AIR FORCE TO-35C2-3 ... - Igor Chudov

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