48
ADJUS
TMENT
S
5.
SENSITIVITY ADJUSTMENT.
-Refer
to
the
Govern()rAdjustment
.
illustration,
'and
to
the
Voltage and
Speed,
Charts.
,Check the voltage and speed,
first,
with
no
load conne.cted
and again with, a full load. Adj.ust
the
sensitivity
so
as
to
give
the
closest
regulation
(least
speed
and voltage
difference
between
no
load and full
load).
without causing a hunting condition.
To
increase,
sensUivity(
Closer
regulation)
,shUt
the,
adjusting clip
to-
ward
the
governor shaft. On
earliermodeIs,
prior
to
spec.
D,
turn
the
adjusting'stud,c(>unter(!.lockwise. . An
adjustmentiortoo
much S4:lrult-
tivitywiU.
cause·
alternate
increase
and
decrease.ofengine
speed
(hunting) .
. . .
,
To
decreasesensitivity,shift
the
adjusting clip
toward
the
outer
en(iof
the
governor
arm.
On
earlier
mode
Is
turn
thea.(ijusting
stud
clockwise.
Too
little
sensitivity
will
result
in too
much
difference in.
speed
between "
no
load
and
full load conditions. ' '
Any change
inthesensiti~tyadjUstment
usually
requires
a
compensat-
ingspeed
(spring
tension) adjustment.
6.
THROTTLE STOP
SCREW.-
The
throttle
Jeyerstop
Screw should
'.
'be
set
at
1/32
inch
distance
from
the
manifold
w1j:entheengine
is
operating with no load connected.
Refer
to
theillust:ratian,'Throttle
Stop
Leyer
Position.
IOLING'POSITION
'FIG.
32 .:THROTTLE STOP LEVER POSITION
7. SPEED-BOOSTER ADJUSTMENT.
-After
satisfactory
perf()rmance
unde.r
variou$loadshas
been
attained
by governor adjustments without the
booster,
thebo0ste:t.can
be
connected. Connect
the
booster
external
spring
to
the
brJlcketon
the governor
link
(rod) •. With
the
plant operating
at
no
load,i
slide
the
bracket
on the
governor
link
just
to
the
position where
there'
is
no
ten-·
. l
l
sion
on
the
external
spring.
;
'APPly
a full
rated
electrical
load to the
generator.
The output voltage "
should
stabilize
at
near
ly the
same
reading for
fulUoad
as
for no load
operation. The speed may
remain
about
the
same
.or
increase
'when
the
~
load
is
applied,
resulting
in
a frequency 1
or
2 cycles HIGHER THAN'
, . the
no
'load
frequency.
(1
cycle
is
equal to 30 rpm
[ora
4
pole
genera-
tor.)
If
the
rise
in
frequency
is
more
than2 cycles,
lessentheinter~
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