Rework Starter/Generator - Toro Workman MD Service Manual

Rework Starter/Generator (Fig. 24)
NOTE: Rework to the starter/generator must be per-
formed by a properly trained technician using the correct
tools and equipment for testing and reworking electrical
Minimum commutator diameter
Commutator concentricity to the shaft
Commutator machining limit per cut
Insulator depth between commutator bars
Armature insulation resistance
Dielectric (insulation strength)
Starter field coil resistance
Generator field coil resistance
Electrical System
Detail
motors and generators. It may be more economically
feasible to replace the starter/generator than have it re-
worked.
0.0003 inch (0.008 mm)
500 VDC for one minute with no insulation break down
2.38 to 2.44 ohms at 20
0.041 ohm for F1 and 0.043 ohm for F2 at 20
Page 6 - - 24
Specification
1.575 inches (40 mm)
0.005 inch (0.127 mm)
0.020 inch (0.5 mm)
0.2 Mohm at 500 VDC
C (68
o
Workman MD/MDX
F)
o
C (68 F)
o o