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COLLET-YM 3843461 - Caterpillar

3843461 COLLET-YM Caterpillar parts COLLET
Alternative (cross code) number:
Caterpillar 3843461 COLLET-YM
Weight: 13 pounds 6 kg.

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Related part:
8R4268  COLLET-YM  3843461  CL
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Illustration 6 g00626058
SR4B generator that is used with a 3406E engine (1) Rectifiers (2) Exciter armature (rotor) (3) Exciter field (stator) (4) Bearing (5) Main armature (stator) (6) Main field (rotor) (7) Fan (8) Rotor shaft
Illustration 7 g00609975
PMPE Generator Wiring Diagram (CR1 - CR6) Diodes (CR7) Varistor (L1) Exciter field (stator) (L2) Exciter armature (rotor) (L3) Main field (rotor) (L4) Main armature (stator) (L5) Pilot exciter armature (PM) Permanent magnet (R5) Resistor (RFA) Rotating field assembly (TR1) Optional Voltage droop transformer (T0, T1, T2, T3, T7, T8, T9) Generator Terminals and/or Generator leadsRotating Field Assembly (RFA)
Illustration 8 g00611866
RFA Components (PMPE Type) (1) Pilot exciter field (permanent magnet) (2) Exciter armature (rotor) (3) Bearing (4) Main field (rotor) (5) Rotor shaft (6) RectifiersThe RFA components attach to rotor shaft (5), which is supported by the engine flywheel and bearing (3) .
Illustration 9 g00611892
Main Armature (Stator (L4) )The generator main armature is stationary and the generator main armature contains the stator windings.Main Field (Rotor)
Illustration 10 g00611914
Rotating Field Assembly (RFA) (1) Main Field (Rotor (L3) )Generator Main Field (1) is part of the rotating field assembly. The generator main field rotates with the rotating field assembly.Exciter
Illustration 11 g00611951
Exciter Armature (Rotor (L2) )
Illustration 12 g00611956
Exciter Field (Stator (L1) )Pilot Exciter
Illustration 13 g00611961
Pilot ExciterThe pilot exciter is used on PMPE generators. The pilot exciter consists of stationary pilot exciter armature (1) and the rotating pilot exciter field (2). The pilot exciter field is also referred to as the permanent magnet (PM). Rotating Rectifier Blocks
Illustration 14 g00610186
Two Diode Rectifier Block
Illustration 15 g00610236
Three Diode Rectifier Block (1) Positive rectifier block (2) Negative rectifier block
Illustration 16 g00611973
The rotating rectifier blocks are part of the rotating field assembly (RFA). There are three types of rotating rectifier blocks that are used. The size of the generator determines the size of the rotating rectifier block that is used.
The two diode rectifier block contains two diodes. Three identical blocks are required.
The three diode rectifier block contains three diodes. Two different blocks are required. One block is positive and the other block is negative.
The six diode rectifier block contains six diodes. One block is required.Note: For additional information, refer to Generator Operation, "Rectifier Circuits".

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