ROLLER AR-TRACK & CARRIER 1941256 - Caterpillar

SR5 Generator
Illustration 1 g01230959
SR5 Generator Similar to the 1600 and 1800 Frame Families Shown with Controls and Accessories
(1) Generator Center Post Bus Bar
(2) Main Stator
(3) Main Rotor
(4) Rotor Shaft
(5) Permanent magnet pilot exciter (PMPE)
(6) Exciter
(7) Bearing
(8) Fan
(9) Front Bracket
(10) Close Coupling Adapter The SR5 generator has the following characteristics:
Three phase alternating current
One or two bearing
Brushless type
Random or form wound
Four pole designThe close coupling adapter (10) is assembled to the engine flywheel housing. A flexible coupling connects the rotor shaft (4) to the engine flywheel. The rotating main field (3) is keyed directly to the rotor shaft.The SR5 generator is a self-ventilated generator. Air enters the generator through screened guards that are located at the rearward end of the generator. Air exits the generator through screened guards that are located at the drive coupling end of the generator. Fan (8) attaches to rotor shaft (4). Bearing (7) supports the exciter end of the rotor shaft.Note: Some larger generators have two bearings. In this case, there will be a bearing at each end of the generator shaft.