Electrical System Maintenance Instructions (Cont)
6-2.1. 24-VOLT ALTERNATOR REPAIR (CONT).
If multimeter does not indicate an open circuit
in either test, rotor coil is grounded. Replace
Touch one test lead to bare metal
surface on shaft (8) and other test lead
separately to each slip ring (9).
If resistance is not 10.0 ohms or less, replace
Touch test leads to each slip ring (9).
Minimum outside diameter (OD) of slip rings
is 1.057 in. (26.85 mm). If measurement is
less, replace rotor.
Measure outside diameter (OD) of slip
Minimum outside diameter (OD) of shaft is
0.669 in. (17 mm). If measurement is less,
Measure diameter of shaft (8).
Dry cleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and
gloves and use only in well-ventilated area. Avoid contact with skin, eyes, and
clothing, and do not breathe vapors. DO NOT use near open flame or excessive heat.
The flash point is 100-138oF (38-59oC). If you become dizzy while using cleaning
solvent, get fresh air immediately and medical aid. If contact with eyes is made,
wash your eyes with water and get medical aid immediately.
Compressed air for cleaning purposes will not exceed 30 psi (207 kPa). Use only with
effective chip guarding and personal protective equipment (goggles/shield, gloves,
Do not soak stator or rotor in solvents. Damage to insulation may result.
(1) Clean stator and rotor with dry cleaning solvent and clean cloth.