Site Blog

Components of a Starter Motor

2016-12-12

Armature, commutator and brushes
 The armatures are mounted on the drive shaft and bearings for support. It is a laminated silicon steel core, that is wrapped with various conductors loops or windings. The commutator is a section of the shaft at the rear of the housing on that the brushes run to conduct electricity. Current flowing through the windings and therefore the commutator bars produce a magnetic field, which rotates the armature.
Solenoid, plunger and lever fork
 The solenoid contains of two coils of wire that are wrapped around a moveable core. The solenoid acts as a switch to close the electrical association and connects the starter motor to the vehicle's battery. The process allows the solenoid to push forward the plunger connected to the lever fork which engages the pinion.
 Pinion
 The pinion could be a unique combination of a gear and springs. Once the starter is engaged the gear is extended into the gearbox housing and is engaged with the regulator. This spins the engine to start the combustion process.
Field Coils
 The housing (yolk assembly) holds the starter fields among the housing with screws. This may consist of two to four field coils connected in series. Energized by the battery this converts the coils into an electromagnet that then turns the armature. The later kind starter motors are fitted with permanent magnets in the housing. Once the armature coils are powered a magnetic field is formed round the armature. The left side of the armature is pushed away from the lift magnet and drawn towards the right (also called as the North and South magnetization), causing rotation.
Jumps Auto Industries manufactures replacement starter motors for LRS212, LRS232, LRS1247, LRS195, 0001367037, IS1159, IS1158.

Back to Site Blog