Volvo 960 service & repair manual

STARTER


1994 Volvo 960


1994 ELECTRICAL

Volvo Starter - Bosch


960


DESCRIPTION


Starter is a brush-type, series-wound electric motor with an overrunning clutch (drive assembly). Field frame is enclosed by commutator end frame and drive bushing and carries pole shoes and field coils. A spline armature shaft drive end carries drive assembly.


TROUBLE SHOOTING


NOTE: See TROUBLE SHOOTING - BASIC PROCEDURES article in TROUBLE

SHOOTING section.


BENCH TESTING


STARTER NO-LOAD TEST


With starter on bench, operate starter and check ammeter, voltage and RPM. Readings should be within specification. See STARTER NO-LOAD TEST SPECIFICATIONS table.


STARTER NO-LOAD TEST SPECIFICATIONS


Application Volts Amps. RPM


0 001 218 .......... 10.5 ........

160 .......... 4200

0 001 110 .......... 11.2 .........

95 .......... 2800

0 001 108 .......... 11.5 .........

75 .......... 2900

0 001 107 .......... 11.5 .........

75 .......... 2900


SOLENOID TEST


Connect battery negative lead to starter solenoid terminal "M". Connect battery positive lead to solenoid terminal No. 50. See Fig. 1. If plunger does not extend firmly, replace solenoid.


image

Fig. 1: Testing Starter Solenoid Courtesy of Volvo Cars of North America


OVERHAUL


NOTE: Use illustration for starter overhaul. See Fig. 2.


image


Fig. 2: Exploded View Of Bosch Starter (Starter 0 001 108 Is Shown; Others are Similar)

Courtesy of Volvo Cars of North America


STARTER SPECIFICATIONS


STARTER SPECIFICATIONS


Application Specification


Armature Core Runout

Bosch (0 001 218) ....................... .002" (.05 mm)

Bosch (0 001 110) ....................... .002" (.05 mm)


Bosch (0 001 108) ....................... .002" (.05 mm)

Bosch (0 001 107) ....................... .002" (.05 mm)

Armature End Play

Bosch (0 001 218) .............. .002-.012" (.05-.30 mm)

Bosch (0 001 110) .............. .002-.015" (.05-.40 mm)

Bosch (0 001 108) .............. .002-.015" (.05-.40 mm)

Bosch (0 001 107) .............. .002-.015" (.05-.40 mm)

Carbon Brush Minimum Length

Bosch (0 001 218) .......................... .27" (7 mm)

Bosch (0 001 110) .......................... .23" (6 mm)

Bosch (0 001 108) .......................... .31" (8 mm)

Bosch (0 001 107) ........................ .17" (4.5 mm)

Carbon Brush Test Voltage

Bosch (0

001 218)

........................... 10.5 volts

Bosch (0

001 110)

........................... 11.2 volts

Bosch (0

001 108)

........................... 11.5 volts

Bosch (0

001 107)

........................... 11.5 volts

Commutator

Diameter

Bosch (0

001 218)

...................... 1.13" (28.9 mm)

Bosch (0

001 110)

...................... 1.14" (31.2 mm)

Bosch (0

001 108)

...................... 1.14" (31.2 mm)

Bosch (0

001 107)

...................... 1.14" (31.2 mm)

Commutator

Runout

Bosch (0

001 218)

..................... .0004" (.010 mm)

Bosch (0

001 110)

..................... .0004" (.010 mm)

Bosch (0

001 108)

....................... .002" (.05 mm)

Bosch (0

001 107)

....................... .002" (.05 mm)


WIRING DIAGRAMS


image

Fig. 3: Starting System Wiring Diagram (960)

 

 

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