. Practical wireless telegraphy; a complete text book for students of radio communication . removing armature from motor generator, it is genera y lerX,otectivecUdensersareatan^^^^^^^ (6) (7)(8) (9) See that protective ^°^^^iZ!:^lU76isc^^^^ from the circuit(10) Punctured condensers should be removed or cusconnei-t u 66 PRACTICAL WIRELESS TELEGRAPHY. (11) In the case of the 2 K. W. 500 cycle motor generator, adjust overloadrelay for 35 amperes. (12) If a single resistance coil in either the hand starter or the automatic starterburns out, close the circuit by placing a jumper around the burned o
. Practical wireless telegraphy; a complete text book for students of radio communication . removing armature from motor generator, it is genera y lerX,otectivecUdensersareatan^^^^^^^ (6) (7)(8) (9) See that protective ^°^^^iZ!:^lU76isc^^^^ from the circuit(10) Punctured condensers should be removed or cusconnei-t u 66 PRACTICAL WIRELESS TELEGRAPHY. (11) In the case of the 2 K. W. 500 cycle motor generator, adjust overloadrelay for 35 amperes. (12) If a single resistance coil in either the hand starter or the automatic starterburns out, close the circuit by placing a jumper around the burned outportion. (13) If field rheostat burns out, close the circuit by a jumper. If burned beyondrepair, substitute 3 or 4 16 C. P. lamps, connected in parallel. (14) Tighten up all connections frequently. These should be gone over onceper month. 59. How to Remove Motor Generator Armature.—In case it becomesnecessary to remove the armature of the Marconi 2 K. W. SOD cycle motor generator for thepurpose of repairs, it is necessary first to remove the casing of the spark gap. Follow this by. Fig. 79a—1 K. W., 60-cycle Motor-generator (Two Bearing Unit) taking out the wedge-shaped key in the end of the generator shaft. If the rotary disc is givena slight tap with the hammer, the key will be released and the disc may be removed from theshaft. After this, the bearing bracket can be removed from the generator end. The brushesshould then be removed from the commutator and the collector rings. After these operationshave been gone through, the armature can be pulled out and a new one inserted, if the armature is replaced, the oil rings should be held up to permit the shaft to passthrough the bearings. Care should be taken to see that the oil rings are worldng properlyand that the bearings are thoroughly oiled for the initial test. Before starting the motorgenerator careful inspection should be made to see that all parts are properly secured and inworking order. It should
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttelegra, bookyear1917
