Avoid operation of Generator Set for
more than 3 minutes with engine
blower housing removed, as engine
b. Battery Charging Regulator/Rectifier Assem-
bly (see figure 4-23).
Inspect regulator/rectifier as-
sembly (5) for physical damage. Check that leads from
assembly to terminal block (3) are not damaged or
frayed. Check that assembly is securely mounted to
engine back plate (4).
(a) Test stator as given In paragraph
4-27a above to see that it is operating correctly.
(b) Remove fuse (9, figure 4-23) and con-
nect a 10 amp ammeter across the fuse holder
terminals as shown in figure 424. With engine operat-
ing normally at 1800 RPM, charge rate should be no
less than 6.5 amps when loaded by a discharged bat-
tery. Charge rate should taper-off as battery becomes
Observe proper polarity when making