frame lightly with a soft hammer to loosen it. Remove the commutator-end spacer washer (1) from the
armature shaft. Do not remove the dowel pin (35). Detach the field frame (6). Detach the drive housing
(28) by removing the center bearing screws (10) and lockwashers (11). Place the armature (2) in soft vise
jaws, bend down the tong of locking clip (19) and unscrew the Bendix-drive head spring screw (20). Slip the
Bendix-drive off the armature shaft. Remove the woodruff key (3) and slip off the drive head assembly (18),
the center bearing (12), and the spacer washer (24). Disassemble the Bendix-drive further, if required, by
bending down the tong of the locking clip (19) and removing the shaft spring screw (21). Separate the drive
spring (23) and the driving shaft assembly (22). Remove the roundhead screws (30) and lockwashers (31),
and the brushes (32). Detach the brush springs (33) by catching the straight section with pliers and lifting
them off. Remove the commutator-end plug (37), and press out the commutator-end bushing (34) in an
arbor press (par. 179). Do not disassemble the field frame because the field coil assembly (4) and pole
shoes (5) are varnished and baked in place. The field frame assembly includes the pole shoe screws (7),
insulation strip (8), terminal stud (9), terminal stud bushing (13), insulating washer (14), hex nut (15),
lockwasher (16), and locknut (17). Remove the pipe plug (25) and oil wick (26). Press out the drive-end
bushing (27) in an arbor press (par.179).
d. Inspection and Cleaning. Inspection and cleaning of the starting motor is similar to that given for the generator.
Procedures in the following paragraphs are referenced where applicable.
(3) Fields. Do not attempt to clean the field coils because they are protected with a corrosion proof varnish.
Check the field coils for opens and grounds with a test light. Replace the field frame assembly if the coils
are defective.
(5) Brush springs. The brush springs must have sufficient tension to provide the proper pressure between the
197