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MASSEY-FERGUSON
IGNITION AND
ELECTRICAL SYSTEM
GROUP
O_SECTION
V_PART
4
To
adjust, loosen
the retaining
screws
and
move
the unit to ftnd proper
gap.
If
the gap
cannot
be
adjusted, check
the
trigger
pins' length. The short trigger
pin
should extend
.187"
from the mounting
surface.
The long trigger
should extend .250" from
the
mounting
surface.
Remove
'he flywheel and drive the pin(s)
in
or
out the
required amount.
d. CoiI
Lead. Remove the
coil lead from the ignition
unit
terminal. Attach
leads
from a standard
ohm-
meter
to
the
lead eyelet terminal and
to ground to
check
series resistance
of the ignition
generator
coil.
See
Fig.
15.
1.
If
resistance
is
below 400
ohms,
replace the
stator
assembly
(which includes the
coils).
NOTE:
The ignition
generator
coil
cannot
be
replaced separatelg.
2.
If
coil
resistance
is
above
4(X)
ohms,
the
stator
assembly
is
working
satisfactorily,
therefore
the
ignition unit
should
be
replaced.
I
!-*-_
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