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556 HANDBOOK OF PROJECTION FOR
An unequal air space between rotor and stator of 2-bearing sets may be corrected by loosening the nuts holding the motor and bracket. Using a feeler gauge between rotor and stator, gradually tighten bracket nuts until air gap is equal all the way around.
RHEOSTAT TROUBLES.— If rheostat fails to change amperage when adjustment is altered, it may be because of (a) poor contact of moving arm with contacts. Contacts may be dirty or corroded, or adjusting handle slipping on adjusting rod. (b) Poor conections somewhere in the instrument, or a badly burned wire. Examine the rheostat once every three months and make sure it is in good condition.
WARNING.— Because of the fact that the Actodectors supply low voltage, it is especially important that the motor run the generator at full speed, therefore examine all connections from main house switchboard to motor periodically making sure they are all tight and in perfect electrical condition.
Approximate Weight and Dimensions of ACTODECTORS "Double Rated" ACTODECTOR
Ampere Rating Weight Width Length Height
25-25' polyphase 300 15 26 13
25-25 single phase 405 21 41 1&A
35-35 polyphase 570 21 41 19
50-50 polyphase 700 21 49 21
75-75 polyphase 850 21 54 21%
100-100 polyphase 1300 25 59 23
"Single Rated" ACTODECTOR
Ampere Rating Weight Width Length Height
100 polyphase 1300 25 59 23
150 polyphase 1800 24 67 27
200 polyphase 2000 24 70 27
250 polvphase..... 2400 26 77 29
300 polyphase 2800 26 80 29
"Double Rated" 3-Bearing Type ACTODECTOR
Approximate Dimensions of Instrument Panels for Double Rated Generators
Ampere Size Voltage Width Length Height
25-25 70 5" 14" 10" 35-35 70 5" 14" 10" 50-50 70 5" 14" 10" 75-75 70 5" 19" 14" 100-100 70 5^ 1ST 14"
For Single Rated Generators
100 100 21" 30" 24"
150 100 21" 30" 24"
200 100 21" 30" 24"
250 100 21" 30" 24"
300 100 21" 30" 24"