Westerbeke 8.0KW-60Hz Service Manual page 53

MANDO ALTERNATOR SERVICE
REMOVE ALTERNATOR
1.
Disconnect the negative (-) battery ground cable.
2. Disconnect the wiring leads.
3. Loosen the screws. Holding the alternator, rotate it
toward the engine and lift the belt off the pulley.
4. Remove the screws and washers and remove the alternator.
AlTERNATOR
SCREWS
REGULATOR --.., ..... , •.
ASSEMBLY COYER
TERMINAL
CAPACITOR~l~~~HIRE~~~~~~~=
~(j-~~
'JUMF'ERB
DISASSEMBLE ALTERNATOR
1. Remove the termmal nuts to remove the jumper (see
illustration).
2. Remove the remaining tenninal nuts.
3. Remove the capacitor.
4. Remove the Phillips screw from the regulator cover.
5. Remove the brush/regulator-assembly cover.
6. Remove the nut from the terminal.
7. Remove the jumper.
8. Remove the terminal insulators.
9. Remove the two Phillips screws and remove the
brush/regulator assembly.
PUUEY~
REMOVAL
Y·BELT
10. Place an oversized V-belt around the pulley and fasten
the puJley in a vise.
11. Use a 718 in. box wrench to loosen and remove the
puJley nut.
12. Remove the pulley nut, lockwasher, pulley, fan, and
spacer.
PUUEY AND FAN COMPONENTS
A
CAUTION:
DO NOT insert screwdriver blf/des
more than 1/16 In. (1.6 mm). Damage to the stator
winding could result from deeper penetration.
NOTE:
Score the stator, and the front and rear housings so
the unit may be reassembled correctly.
13. Remove the four through-bolts and carefully pry the
front housing away from the rear housing using two
screwdrivers.
SCREW DRIYER
REAR HOUSING
~--FRONT
HOUSING
HOUSING AND STATOR REMOVAL
14. CarefuJly push the rotor assembly out of the front
housing and rear housing. .
ROTOR REMOVAL
NOTE:
If
the bearing is removed from the housing, a /lew
bearing must be installed.
15. After removing the three bearing locking screws, care
funy press the front bearing out of the housing. Press
against the inner race of the bearing.
Engines
&
Generators
45