Starter Motor - Westerbeke BCGA-60HZ Service Manual

STARTER MOTOR
BENCH TESTING THE STARTER MOTOR
When bench testing the starter motor, make certain it is
securely held in place.
Motor Test
1. Using a fully charged battery, run a jumper from the bat-
teries ( +) post to the connecting lead that has been
removed from terminal C ..
2. Connect another jumper from the battery (-) post to the
starter motor's housing (momentarily). If the motor fails
to run, the motor is the problem.
DISASSEMBLING THE MOTOR
NOTE: Cl~sed
type bearings are used on thts;
~eries
of
generators. During the dismantling, be careful not to damage
the protective cover rings.
To prevent damage to the rotor and stator windings while
removing the rotor, place cardboard between the packages
and remove the rotor by pulling it out gentle.
STARTER MOTOR SERVICE
TYPICAL STARTER
D.E. HOUSING
~
/!
Magnetic Switch Test
1. Connect a jumper lead from the starter's S terminal to the
battery ( +) post.
2. Connect a jumper from the battery (-) post to the starter
motor's C terminal (momentarily).
3. If the pinion gear fails to pop out, the problem is with the
magnetic switch.
DISASSEMBLING THE MAGNETIC SWITCH
1. Remove the drive end frame mounting screws.
2. Disassemble carefully the overrunning clutch, ball,
spring, gears, rollers, and retainer.
3. Remove the plunger end cover screws and take out the
plunger.
NOTE:
When
reass~mblirlg,
apply grease to all the gear teeth,
the overrunning dutch and the ball.
TIGHTENING TORQUE B TERMINAL NUT 5.9 ·11.8 Nm
4.3 • 8. 7 ft-lb
BRUSH HOLDER ASSEMBLY
Engines
&
Generators
40