MASSEY FERGUSON MF 14 - Page 85

Disconnect
B*
at fuse
coupling
and
check
D.C.
voltage
between
coupling
and
ground
with
engine
running
at full
throttle.
2.
a.
If
voltage reading
is
above
rr14rr
volts
D
.C
.
system
is O
.K.
If
ammeter
does not
show charge or with
lights
on ammeter
does
not show dis-
charge, check wiring.
If
wiring
is O.K.,
replace ammeter.
If
voltage
reading
is less
than
r'14"
volts
D.C. but
greater
than
rr0rr
voltage check
alternator.
Disconnect
plug
from
regulator-recti
fier
and
test A.C.
voltage
at
plug
with
engine
running
at
fuII thro-
ttle.
Shou1d
have
not
less
than
tt2on
volts
A.C
.
b.
c.
3. With
battery
connected,
run engine at idle, check
B+ to
ground
voltage with
D.C.
voltmeter.
If
read-
ing is 13.8
volts or high-
€r,
place
load
(turn
on
headlights) on battery
q