Hudson 1948 - 1952, Service Manual

Page: 143 / 333

ELECTRICAL SYSTEM 6 - 7
STARTER REMOVAL:
1. Disconnect cable at battery negative terminal and
remove cable at starting motor post.
2. Remove the two starter mounting stud nuts and
remove starter motor assembly.
DISASSEMBLY:
1. On cars equipped with the outboard type starter,
remove the two through bolts attaching the Bendix
housing to starter frame and remove the Bendix
housing.
2. On inboard type Bendix, remove lock spring from
end of Bendix drive and remove spring and retainers.
3. On outboard type Bendix, drive out pin attaching
adapter to shaft and remove adapter, sleeve and pin-
ion.
4. Remove two countersunk screws attaching drive end
head and remove head.
5. Remove commutator cover band and remove brushes
from holders.
6. Remove commutator end head. 7. Remove armature.
STARTER OVERHAUL
ARMATURE:
1. Check armature for grounds with a set of test probes
in series with a lamp and a source of electricity.
2. Touch one probe to the armature core and touch the other to
the end or shoulder of each commutator segment in turn.
FIGURE 6
3. If the lamp lights, the armature is grounded and should be
replaced.
4. Place armature on a growler and hold a steel strip on the
armature.
5. Rotate the armature, and if steel strip vibrates, armature is
shorted and should be replaced.
6. If commutator is rough, it should be turned down on a lathe and
finished with 00 sandpaper. DO NOT UNDERCUT THE
MICA.
7. If bearing clearance exceeds .005", bearings should be replaced.
(Soak bearings in engine oil and use correct arbor to Install
bearings.)
FIELD COILS:
1. Check field coils for grounds by touching one test probe to the
frame and the other to each of the field coil terminals.
2. If the lamp lights, coil is shorted and should be replaced.
3. Check coils for open circuit by placing the test probes across
each coil separately.
4. If lamp does not light, coil is open and should be replaced.