Yanmar 4LHA-HTP Operation Manual page 646

Chapter 9 Electrical System
4. Alternator
A-7 Disassembling the alternator
(1) Remove the through-bolt, and separate the front as-
sembly from the rear assembly.
(2) Remove the pulley nut, and pull out the rotor from the
front cover.
(3) Remove the 05mm (0O.1969in.) screw from the front
cover, and then remove the ball bearing.
(4) Remove the nut, the brush-holder, and diode fixing nut
at the BAT, and the terminal screws of the rear cover.
Separate the rear cover from the stator (with the diode
and brush holder).
(5) Disconnect the soldered joint of the stator lead wire,
and remove the diode and brush regulator assemblies
from the stator at the same time.
(6) Separating the regulator
1)To separate the
(00.1181 in.) rivet which keeps the diode assembly and
the brushless regulator in place, and the soldered joint
of the L-terminal.
9-20
i 4LHA Series
regulator, remove the ø3mm