TM 55-2210-223-34
TO 45A2-2-14-22
Table 3-1. INTERMEDIATE DIRECT SUPPORT AND INTERMEDIATE GENERAL SUPPORT
TROUBLESHOOTING (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
46. MAIN GENERATOR ARMATURE OR FIELD COILS ARE GROUNDED. (cont.)
Step 2.
Check for defective field coils.
Remove main generator for repair (para 3-36).
Step 3.
Check for broken insulators.
Replace insulators (para 3-36).
Step 4.
Check to see if commutator bars are dirty or broken.
Remove main generator for repair (para 3-36).
Step 5.
Check for broken high-voltage leads.
Remove main generator for repair (para 3-36).
Step 6.
Check for broken power contactors.
Replace power contactors.
47. MAIN GENERATOR BEARING FAILS.
Step 1.
Check for unbalanced armature.
Replace armature (para 3-36).
Step 2.
Check for no lubrication or contaminated grease.
Lubricate in accordance with LO 55-2210-223-12.
Step 3.
Check for proper alinement.
Aline main generator (para 3-36).
Step 4.
Check for improper installation of bearings.
Remove main generator for repair (para 3-36).
48. MAIN GENERATOR BRUSHES ARE BROKEN.
Step 1.
Check for rough commutator, burned spots, flat spots, or high bars.
Resurface commutator (para 3-36).
Step 2.
Check for low brush spring tension.
Adjust spring tension (TM 55-2210-223-12).
3-23
