GMC T Series 1994 Repair Manual page 589

28-MT STARTER MOTORS
N O T IC E : W h e n f a s t e n e r s a r e r e m o v e d , a l w a y s r e in s ta ll th e m a t th e s a m e lo c a t io n fr o m w h ic h t h e y w e r e
r e m o v e d . I f a f a s t e n e r n e e d s to b e r e p la c e d , u s e th e c o r r e c t p a r t n u m b e r f a s t e n e r f o r t h a t a p p lic a t io n . I f
t h e c o r r e c t p a r t n u m b e r f a s t e n e r i s n o t a v a ila b le , a f a s t e n e r o f e q u a l s iz e a n d s t r e n g t h ( o r s t r o n g e r ) m a y
b e u s e d . F a s t e n e r s t h a t a r e n o t r e u s e d , a n d t h o s e r e q u ir in g t h r e a d lo c k in g c o m p o u n d w ill b e c a l le d o u t.
T h e c o r r e c t t o r q u e v a lu e m u s t b e u s e d w h e n in s t a llin g fa s t e n e r s t h a t r e q u ir e it. I f th e a b o v e c o n d it io n s
a r e n o t fo llo w e d , p a r t s o r s y s t e m d a m a g e c o u ld re s u lt.
SUBJECT
General D escription....................................................................................................................................................6D2B- 2
Starter M o to r.............................................................................................................................................................6D2B- 2
Identification..............................................................................................................................................................6D2B- 2
Diagnosis........................................................................................................................................................................6D2B- 2
No-Load T e s t............................................................................................................................................................ 6D2B- 2
D isassem bly.................................................................................................................................................................. 6D2B- 4
Introduction...............................................................................................................................................................6D2B- 4
Unit Disassem bly.....................................................................................................................................................6D2B- 4
Frame, Field, and Brush Holder G roup............................................................................................................ 6D2B- 4
Gear Reduction and Drive G ro u p ......................................................................................................................6D2B- 4
Drive Shaft and Clutch G ro u p.............................................................................................................................6D2B- 6
Cleaning, Inspection, and Repair........................................................................................................................... 6D2B- 8
C lean in g..................................................................................................................................................................... 6D2B- 8
Insp ectio n.................................................................................................................................................................. 6D2B- 8
Component Electrical Testing..............................................................................................................................6D2B- 8
Repair Procedures...................................................................................................................................................6D2B- 9
Armature Bearing R eplacem ent......................................................................................................................6D2B- 9
Center Support B earin g.................................................................................................................................... 6D2B- 9
Drive End Housing Bushing.............................................................................................................................6D2B- 9
Lubrication................................................................................................................................................................. 6D2B-10
A ssem bly........................................................................................................................................................................6D2B-10
Drive Shaft and Clutch G ro u p.............................................................................................................................6D2B-10
Gear Reduction and Drive G ro u p ......................................................................................................................6D2B-11
Frame, Field, and Brush Holder G roup............................................................................................................ 6D2B-11
Unit A ssem bly.......................................................................................................................................................... 6D2B-12
Testing After O verhaul...........................................................................................................................................6D2B-13
S pecificatio n s.......... .................................................................................................................................................... 6D2B-14
Starter M o to rs.......................................................................................................................................................... 6D2B-14
Solenoid Sw itches...................................................................................................................................................6D2B-14
Lubrication................................................................................................................................................................. 6D2B-14
Fastener T ig hten in g ............................................................................................................................................... 6D2B-14
SECTION 6D2B
CONTENTS
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