Alternator Service - Toro Workman 3000 Series Service Manual

Alternator Service

Disassembly and Inspection
1. Remove the alternator from the engine (see Alterna ­
tor Removal and Installation).
2. Remove the three through bolts.
3. Use a solder iron to heat the rear bracket around the
o
rear bearing to 120 - 140
front and rear brackets by prying with a screwdriver
blade inserted between the brackets.
IMPORTANT: Be careful not to insert the blade too
far causing damage to the windings.
6
1. Pulley
2. Front bracket assembly
3. Front bearing
4. Rotor assembly
Workman 3300-D/4300-D
o
F (50 - 60 C). Separate the
1
7
Figure 53
5. Rear bearing
6. Stator
7. Terminal set assembly
8. Regulator assembly
Page 4 - 41
4. Put the rotor in a vise. Remove pulley nut and pull off
the pulley and spacer.
5. Pull the rotor assembly from the front bracket.
6. Unsolder the stator core lead wires. Remove the
stator assembly.
IMPORTANT: To prevent damage to the diodes, heat
the stator core lead wires only long enough to re­
move.
7. Disconnect the capacitor from terminal "B".
8. Loosen the screws securing the rectifier and remove
the rectifier.
2
3
8
9
4
5
10
9. Rectifier assembly
10. Rear bracket assembly
Liquid Cooled Diesel Engine