ALTERNATOR GP-CHARGING 1246197 - Caterpillar

Table 1
New Exciter Kit    
New Part Number    Description    Former Part Number    
448-9391     Exciter Kit     281-3093    When replacing 281-3093 Exciter Rotor, balancing of the rotor with replacement exciter rotor may be required. Balancing can be done at local repair shop or on site with an industry standard trim-balance tool.Note: An additional improvement to the exciter rotor design on 3000 frame generators is utilizing a lock-nut construction in place of the press-fit/taper-lock construction. 3000 frame generators built with 449-3487 Exciter Rotor, with lock-nut construction (449-3490 Exciter Rotor for 3068 frame generators) have exciter rotors balanced separately in the factory, and do not require balancing in the field.