Saab Workshop Service and Repair Manuals

Alternator: Specifications
120A

Type Disignation .........................................................................................................................................................................  Bosch KC 14V 70 - 120A

Rated Voltage ................................................................................................................................................................................................................  14V

Stator Connection ..........................................................................................................................................................................................................  Star

Diameter of Slip Rings 
New ...........................................................................................................................................................................................................................  15.4mm
Min ..................................................................................................................................................................................................................................  14.4

Max. Permissible Radial Runout: 
Belt Pulley ...................................................................................................................................................................................................................  0.2mm
Slip Rings ..................................................................................................................................................................................................................  0.02mm
Rotor .............................................................................................................................................................................................................................  0.087

Minimum Length of Brushes, From Lip of Brush Holder .....................................................................................................................................  7.5mm

Pulley Ratio, Engine/Generator ..................................................................................................................................................................................  1:2.9

Test Readings

Resistance, Rotor Winding (at 25°C) ...................................................................................................................................................................  2.6 ohms

Resistance, Stator Between Phases (at 25°C) ..................................................................................................................................................  0.051 ohms

Generator Speed/Stated Current at: 
1800 RPM .......................................................................................................................................................................................................................  70A
6000 RPM .....................................................................................................................................................................................................................  120A