TM-9-2920-225-34 HMMWV Generator Direct Support & General Support Maintenance Manual Download

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TM 9-2920-225-34 L Table 1-2. Special Tools and Equipment Part National Reference Item No. Stock No. Paragraph Use TEST STAND : AGT-9 4910-00-767-0218 2-23 Used to check the (Automotive 2-24 operation and output Generator, 2-25 of the generator after it Alternator has been repaired. and Starter) 1-12. DIFFERENCES BETWEEN MODELS . Refer to table 1-4 for differences between generator models covered in this manual. 1-13. DESCRIPTION AND DATA. a. Basic Generator. The engine generators you will read about in this manual produce 28-volt, 3-phase alternating current. These generators are self-cooled with rotor shafts on either ball or roller bearings. Some models are belt driven. Other models have a flexible direct drive coupling. b. Internally Rectified Generators. Generator models AMA-5102UT, 3002AC, 3002AD, 3002AE and 2184AC have internal rectifiers. These rectifiers change the alternating current to direct current before it leaves the generator. c. Internally Regulated Generators. Generator models AMA-5102UT, 3002AC, 3002AD, and 3002AE besides having internal rectification, also have an internally mounted voltage regulator. This device controls the output of the generator and does away with the need for an external reguator. d. Tabulated Data. Refer to table 1-3 for tabulated data on each model generator and regulator covered in this manual. 1-5