Starter Motor; Troubleshooting - Westerbeke 5.5 kw EDC 60 HZ Operator's Manual

STARTER MOTOR
DESCRIPTION
The starter is a new type, small, light-weight and is called a
high-speed internal-reduction starter. The pinion shaft is
separate from
the
motor shaft; the pinion slides only on the
pinion shaft A reduction gear is installed between the motor
shaft and a pinion shaft. The pinion sliding part is not
exposed outside the starter so that the pinion may slide
smoothly without becoming fouled with dust and grease. The
motor shaft is supported at both ends on ball bearings. The
lever mechanism, switch and overrunning clutch inner circuit
. are identical to conventional ones.
TERMINALS - -......
"""IIiV' ....
MOTOR
TYPICAL
STARTER MOTOR .
REFER TO THE WIRING
DIAGRAM IN THIS MANUAL
TROUBLESHOOTING
SOLENOID
A
WARNING:
The following emergency starting
procedures must not be used with gasoline engines.
Sparks could cause an explosion and fire.
Prior to testing, make
certain
the ships batteries
are
at full
cbarge and that the starting system wiring connections
(terminals) are clean and tight. Pay particular attention to
the ground wire connections on the engine block.
To check the wiring,
try
cranking the starter for a few
seconds, never more
than 10
seconds at a time, then run yonr
hand along the wires and terminals looking for warm spots
that indicate resistance. Repair or replace any trouble spots.
Using a multirneter, test
the
voltage between the positive
terminal stud on the
start
solenoid and the engine block
(ground).
If you read 12 volts, the starter is faulty.
'IG~ITION
TERMINAL
~~---I(M) TERMI~AL
To test the ignition circuit, locate the ignition(s) terminal (it
is one of the small tenninal studs and is wired to the ignition
circuit). Use a screwdriver, don't touch the blade, to jump
from that ignition terminal to the positive battery connection
terminal on the solenoid.
If the starter cranks, the fault lies with the ignition
circuit.
If the solenoid clicks bnt nothing bappens, the starter
motor
is
probably faulty.
SOLENOID
POSITIVE
~";;::-----/;Ml
TERMINAL
IGNITION
~
If nothing bappens at aIJ,
the solenoid
is
not getting
cnrrent.. Check the battery isolation switch and inspect the
wiring connections. it is also possible that the solenoid is
defective.
A
WARNING:
There will be 'arching and sparks will
fly when jumping terminals. Be certain the engine
space is free of potentially explosive fumes, especially
gasoline, and that there are
1m
flammable solvents or
materials stored nearby.
Engines &
Gen~rators
19