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6. Low no-load speed and low current draw indicates
a higher internal resistance due to poor connec
tio n s, d e fe ctive leads, d irty com m utator, and
causes listed under step 5.
7. High free speed and high current draw indicates
shorted fields. If shorted fields are suspected,
replace the field coil assem bly and check for
improved performance.
DISASSEMBLY
IN TR O D U C TIO N
If the motor does not perform to specifications, it may
need to be disassembled for further testing of the com
ponents. Normally, the starter motor should be disas
sembled only so far as is necessary to make repair or
replacem ent of parts. The 28-M T com ponents are
shown in figure 3.
Do not attempt to disassemble the following compo
nents that are serviced as assemblies:
• Solenoid assembly (19)
• Clutch drive assembly (34)
• Brush holder assembly (7)
• Armature assembly (13)
• Frame and field assembly (15)
As a precaution, it is suggested that safety glasses
be worn when disassembling or assembling the starter
motor.
U N IT DISASSEMBLY
❖
Disassemble (Figure 4)
• Clean the outside of the starter housing, removing
grease, oil, mud, etc.
• Scribe marks completely down one side of the
starter motor to ensure proper alignment of all
components during assembly. Use a colored pencil
or marker that will show on all parts.
1. Motor lead on the frame assembly (A) from the
solenoid assembly (19).
• Remove the nut from the motor terminal, slip off
the motor lead, and reinstall the nut.
2. Two through bolts (1).
3. Two brush plate screws (2).
4. Commutator end frame (3) and O-ring seal (4).
Important
• In the following step, take care not to lose the
small dowel pin (16) installed between the
frame assembly (A) and the gear reduction and
drive group (B). The dowel pin is needed for
assembly and must be saved. If it is lost, it
m ust be re p la ce d w ith a 2-m m x 10-mm
(0.079-inch x 0.394-inch) long pin obtained or
manufactured locally.
5. Frame, field, and brush holder group (A), dowel pin
(16), and O-ring seal (17).
• The armature assembly (13) may come off with
the frame, field, and brush holder group (A) or
may be retained by the gear reduction and
drive group (B).
6. Armature assembly (13) with bearings (12 and 14).
• Do not remove the bearings from the armature
assembly unless replacement is required. Refer
to “ Cleaning, Inspection, and Repair.”
7. Solenoid screws (18).
8. Solenoid assembly (19).
• Pivot the inside end of the solenoid assembly
(19) out of engagement with the shift lever in
the gear reduction and drive group (B) to with
draw it.
FRAME, FIELD, AND BRUSH
HOLDER GROUP
❖
Disassemble (Figure 5)
1. Insulated brush screws (9).
• M ove the brush holder a ssem bly (7) with
brushes slightly away from the frame and field
assembly (15) to reach across with a screwdriv
er and remove the screws (9).
2. Frame and field assembly (15).
3. Grounded brush screws (6).
4. Brushes (5 and 8) if they need replacement.
• Grasp the brush end of each brush spring (11)
with needle nose pliers. Twist the spring end
away from the brush socket on the brush holder
assembly (7) and remove the spring.
5. Brush springs (11) if they need replacement.
All electrical components should be inspected and
tested. Refer to “ Cleaning, Inspection, and Repair.”
GEAR REDUCTION AND DRIVE
GROUP
❖
Disassemble (Figure 6)
1. Housing bolts (25 and 26).
2. Armature support bracket (27).
Important
• Washers (28 and 30) may stick to the bracket
or to the drive shaft and clutch group (C) as the
bracket is removed. In either case, note the
position and number of each of these washers.
3. Washers (28 and 30).
• Save the washers to be installed in the same
position and number at assembly.
4. Drive housing plug (21) and plate (24).
• Pry out the drive housing plug with a large
screwdriver.
5. Shift lever nut (23), washer (22), and screw (38).
Summary of Contents for S Series 1994
Page 1: ......
Page 11: ...VIEW A p n n n j VIEW C F7554 Figure 10 Hydra Matic 4L60 E Transmission I D Location...
Page 24: ...NOTES...
Page 26: ......
Page 69: ...NOTES...
Page 71: ...3 2 STEERING...
Page 73: ......
Page 84: ......
Page 102: ...40...
Page 130: ...NOTES...
Page 146: ...NOTES...
Page 162: ...NOTES...
Page 166: ...Figure 5 Removing the Pinion Flange Figure 6 Pressing the Drive Pinion from the Cage...
Page 178: ...Figure 3 Spreading the Differential Case Figure 4 Removing the Differential...
Page 190: ...NOTES...
Page 202: ...NOTES...
Page 206: ...F5785...
Page 212: ...B Button Moved Out of Bearing Bore F5791...
Page 228: ...NOTES...
Page 232: ......
Page 234: ......
Page 236: ...Adjuster 63 Bolt 64 Lock Figure 10 Turning the Adjuster Plug K3 Models...
Page 237: ...Figure 13 Removing the Pinion Seal 39 Bearing Cup Figure 16 Removing the Inner Bearing Cap...
Page 261: ...F7475...
Page 267: ...B Button Moved Out of Bearing Bore F5791...
Page 294: ...NOTES...
Page 300: ...NOTES...
Page 318: ...NOTES...
Page 322: ...SR207LN2 EDS...
Page 324: ......
Page 326: ...OVERHEAD OILING AND RETURN MAIN OIL GALLERY N30005 6A2 J EDS...
Page 368: ...103 153 127 V1200...
Page 370: ......
Page 372: ......
Page 374: ...F9375 Figure 7 Engine Lubrication Diagram Engines Without Balance Shaft...
Page 376: ...Figure 9 Engine Lubrication Diagram Engines With Balance Shaft...
Page 399: ...V2974...
Page 410: ......
Page 412: ...195 196 201 174 252 163 165 164 244 3706r3924...
Page 452: ......
Page 454: ...163 164 V1202...
Page 456: ...20 21x 302 210 4 0 41 2 5 2 5 1 2 51 4 2 e3 54 3 9 252 252 S 255 255 25 6 256 209 V1196...
Page 458: ...100 1 8 4 185 183 177 v 75 201 3706r1204...
Page 460: ......
Page 510: ......
Page 512: ...V2131...
Page 514: ...110 106 106 103 90 93 89 88 87 86 v 7 7 7 7 j A _ 111 f t 2 a a s 53 49 L 47 46 3706r4751...
Page 516: ...259 260 150 237 S lM 180 167180 J 1 82 183 170 169 1 1 78 1 7 9 213212 2 0 7 205 r i 3706r4752...
Page 566: ...NOTES...
Page 574: ...NOTES...
Page 618: ...SPECIAL TOOLS...
Page 620: ...NOTES...
Page 672: ......
Page 682: ......
Page 686: ......
Page 694: ...RH0213 4L60 E...
Page 695: ...657 659 m i J 8092 H J 34196 4 3 34196 5 657 658 665 J 23907 J 7004 1 J 8092 RH0214 4L60 E...
Page 696: ...J 8092 J 34196 4 33 31 J 8092 RH0215 4L60 E...
Page 697: ...SPECIAL TOOLS...
Page 698: ...SPECIAL TOOLS...
Page 758: ...RH0194 4L80 E...
Page 764: ......
Page 770: ...SPECIAL TOOLS...
Page 771: ...SPECIAL TOOLS CONT...
Page 772: ......
Page 775: ......
Page 776: ......
Page 785: ......
Page 804: ...NOTES...
Page 806: ......
Page 808: ......
Page 822: ...3707r5079...
Page 840: ......
Page 848: ...NOTES...
Page 852: ......
Page 860: ...F5435...
Page 866: ......
Page 878: ...F9167...
Page 882: ...16 FrontOutputShaft 18 DrivtQNr 19 DrivenGm t 20 DriveChain 22 FrontOutputBearing V2836...
Page 890: ...F9168...
Page 908: ......
Page 919: ......