Terex RT500-1 - Alternator

Alternator
CONDITION CAUSE REMEDY
OPERATION NOISY Worn or dry bearings Replace worn bearings.
Alternator mounting loose Tighten alternator mounting.
Belt loose Replace worn belt or tighten
loose belt.
Brush holders out of
alignment
Replace brush holders.
Brushes not seated properly Reseat or replace brushes.
Armature unbalanced Replace armature.
Commutator out-of-round Dress commutator.
Loose windings Replace defective windings.
Armature rubbing Replace bearings.
EXCESSIVELY HIGH
ALTERNATOR ELECTRICAL
OUTPUT
Alternator regulator out of
adjustment
Replace regulator.
Field leads shorted Replace or repair alternator.
Alternator regulator shorted Replace regulator.
ALTERNATOR
MECHANICALLY
INOPERATIVE
Belt loose Tighten belt.
Armature shaft sheared Replace or repair alternator.
LOW OR NO ALTERNATOR
ELECTRICAL OUPUT
Field coil open Replace or repair alternator.
Brushes dirty, worn, pitted,
or burned
Replace or repair alternator.
Alternator regulator defective Replace regulator.
Alternator to regulator field
leads open or connections
loose
Tighten connections or
replace field leads.
ALTERNATOR OVERHEATS Loose or worn belt or pulley Adjust belt, or replace worn
belt or pulleys.
Misalignment Inspect mounting brackets
and tension adjusting arm for
looseness. Tighten or replace
parts as required.
211REVISED: