R-390_user_TM11-5820-357-10_1974.pdf
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1、Change in force: C 4 TM 11-5820-357-10 *C4 CHANGEHEADQUARTERS DEPARTMENT OF THE ARMY NO. 4WASHINGTON, D.C., 30 May 1974 Operators Manual RADIO RECEIVER R-390/URR TM 11-5820-357-10, 29 December 1960, is changed as follows: Page 1. Delete the following from page 1. II. BASIC ISSUE ITEMS LIST .29 Page
2、3, paragraph 1. Add the following sentence to paragraph 1. A basic issue items list or items troop installed or authorized list is not applicable to this equipment. Paragraph 1.1. Paragraph 1.1 is superseded by the following: 1.1. Indexes of Publications a.DA Pam 310-4. Refer to the latest issue of
3、DA Pam 310-4 to determine whether there are new editions, changes, or additional publications pertaining to the equipment. b.DA Pam 310-7. Refer to DA Pam 310-7 to determine whether there are modification work orders (MWOs) pertaining to the equipment. Paragraph 2. Paragraph 2 is superseded by the f
4、ollowing: 2. Forms and Records. a.Reports of Maintenance and Unsatisfactory Equipment. Maintenance forms, records, and reports which are to be used by maintenance personnel at all maintenance levels are listed in and prescribed by TM 38-750. b.Report of Packaging and Handling Deficiencies. Fill out
5、and forward DD Form 6 (Report of Packaging and Handling Deficiencies) as prescribed in AR 700- 58/NAVSUP PUB 378/AFR 71-4/MCO P4030.29, and DSAR 4145.8. *This Change supersedes C 1, 18 July 1963 c.Discrepancy in Shipment Report (DISREP) (SF 361). Fill out and forward Discrepancy in Shipment Report (
6、DISREP) (SF 361)as prescribed in AR 55- 38/NAVSUPINST 4610.33/AFM 75-18/MCO P4610.19A, and DSAR 4500.15. Add paragraph 2.1 after paragraph 2. 2.1. Reporting of Equipment Publication Improvements The reporting of errors, omissions, and recommendations for improving this publication by the individual
7、user is encouraged. Reports should be submitted on DA Form 2028 (Recommended Changes to Publications and Blank Forms) and forwarded direct to Commander, US Army Electronics Command, ATTN: AMSEL-,MA-CR, Fort Monmouth, NJ 07703. Page 5. After paragraph 5 and paragraph 5.1. 5.1. Items Comprising an Ope
8、rable Equipment Radio Receiver R-390/URR is shown in figure 1. FSNQTYNomenclature 5820-503-1242Receiver, Radio R-390/U RR which includes: 5995-173-88391Cable Assembly. Power CX- 1358 125V; Littlefuse No. 313003 5920-5376475Fuse, cartridge: 38 amp; 250V; MIL type F02GR375B 6240-155-78361Lamp, incande
9、scent: 28V; 0.04 amp; Fed Spec No. W-L- 111b, trade No. 327 590-502-48401Resistor, current regulating: MIL type TJ311MO1 Page 13. figure 8 (part 2 of 2), step 7. Add following: Caution: When turning the ZERO ADJ control knob, be careful not to force the knob counterclockwise beyond the stop. The sha
10、ft can be turned to a point at which the plate on the end of the shaft is forced off. Page 24. Delete figure 14. Page 25. Delete paragraph 20 and substitute: 20. Preventive Maintenance Preventive maintenance is the systematic care, servicing, and inspection of equipment to prevent the occurrence of
11、trouble, to reduce downtime, and to assure that the equipment is serviceable. a.Systematic Care. The procedures given in paragraphs 20.1 and 20.2 cover systematic care essential to proper upkeep and operation of the equipment. The cleaning operations (par. 20.3) should be performed once a day. If th
12、e equipment is not used daily, the cleaning operations must be performed before operation after any extended shutdown, or once a week while the equipment is kept in a standby condition. The other items must be checked before the equipment is placed in operation after a shutdown, during operation, or
13、 after it is turned off, as specified in the applicable paragraph. b.Preventive Maintenance Checks and Services. The preventive checks and services chart (par. 20.2) outlines inspections to be made each day. These checks and services are made to maintain Army equipment in a combat serviceable condit
14、ion; that is, in good operating condition. To assist operators in maintaining combat serviceability, the chart indicates what to inspect, how to inspect, and what the normal conditions are; the References column lists the paragraph or figure that contains additional information. If the defect by rem
15、edied by the operator, higher echelon maintenance or repair is required. Records of these checks and services must be made in accordance with TM 38750. 20.1. Preventive Maintenance Checks and Service Periods a.Preventive maintenance checks and services of the R-390/URR are required on a daily basis.
16、 b.Paragraph 20.2 specifies services and inspections that must be accomplished daily and under special conditions listed below for transportable and mobile installations. (1)When the equipment is initially installed. (2)When the equipment is reinstalled after removal for any reason. (3)At least once
17、 each week if the equipment is maintained in a standby condition. 20.2. Daily Preventive Maintenance Checks and Service Charts Sequence No.ItemProcedureReferences 1Exterior surfacesClean the receiver dust covers and panel; clean the fre-Par. 20.3. quenty indicator glass and meter glasses 2Frequency
18、indicator glass;Inspect frequency indicator glass and the meter glassesFig. 1. meter glasses.for cracks and breaks. 3Cords and cablesCheck cords and cables for cracks and breaksNone. 4ConnectorsInspect connectors on the rear of the receiver for tightness.None. 5Knobs and switchesWhile making the ope
19、rational test (item 6) check the me-Fig. 6. chanical action of each knob and switch for external and internal binding. 2 Sequence No.ItemProcedureReferences 6Operational test .Perform the steps as given in the operationalPar. 23c. checklist. 20.3. Cleaning Inspect the exterior of the receiver. The e
20、xterior should be clean, and free of dust, dirt, grease, and fungus. Warning: Cleaning Compound (Federal stock No. 7930-395-9542) is flammable and its fumes are toxic. Provide adequate ventilation. Do not use near a flame. a.Remove dirt and dust with a clean soft cloth. Dampen the cloth with cleanin
21、g compound if necessary. b.Remove grease, fungus, and ground-in dirt from the case; use a cloth dampened (not wet) with cleaning compound. c.Remove dirt from the frequency indicator glass and the meter glass with a cloth dampened with cleaning compound. Caution: To prevent breakage, do not press on
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