MAINTENANCE
AND
ADJUSTMENT
Adju$tjng injection q
ua
ntity
~'emor
inspection
Upon disassembling the governor, visually inspect
the
baU
bearing (which is
be
tween
control
block
and
sleeve
as
a means
of
transmitting
the
push and pull between
the
flywheel device
and
the lever
meci1.3S1ism)
for wear and
damage.
hamme
the
baIls
and the raceways carefully
and,
if
any abnormal
or
excessive wear i
s.
noted,
replace
the
bearing. Make sure
that
this bearing
is
in
perfectly
good condition: any Tattle or abnormal noise
is
not
permitted.
There are a lotal
of
five items to be checked
and
serviced
in
the
governor
during
the
process
of
reassem
·
bly. A repair limit
is
specified for each and ,
If
tb.
limit
is
reached, then the
part
or
parts responsible must
be
repaired
or
replaced to bring the item (dimension)
into
the standard dimensional
range.
(1)
flyweight
inspection
(a) Measure
the
clearmce
between the fiyweight
roller
and
roller pin. If the lJrnit is r
.,ched
,
replace Ihe flyweight assembly.
Unit: mm (in.)
Service Nominal
Standard
li
mit
Item
diameter
flywet,1
r?ller
0.025 - 0.062
0.
10 8
(0
.00098 -
(0.00394)
and
rO
or
pm
(0.315)
clearance 0.00244)
(b) Check the
contact
sur
f.ce,
of
the flyweight
roller and gov
erno
r
slec
y~
.
If any excessive wear
or
dama
ge
is
found,
repla
ce
the flyweight
assembly.
U
nit:
mm
(in.)
Item
No
minal
Standard
Ssrv
i
c;@
diameter
li
mit
0
Flyweight 16
-
0.11
-0
.25
(---0.0098)
roller 0.
0.
(0.63)
0
, C
O
.
0043
)
-
72
(2)
Inspection
of
part;
re
l
ated
10
contto
l lever
(a) If the con
tro
l block is worn do
wn
at its end
and
chrome
plating
Is
off
, replace
the
contr
ol
block
or
guide leve
r.
(b)
Meosur. the
c1eariUlco
between
the
holes
of
the
tension lever and
gUide
lever, and supporting
I
C'o'ei
shaft.
If
the limit
is
reached, r
ep
lace them.
If
any excessive uneven
we~
r
in holes
and
stepped wear on the
sh
aft are found. replace
the
suppo
rt
ing lever shaft and levers.
Unit:
mm (in.)
Service
N
om
in
al
S
tandard
li
mit
I
(e
m
di
ameter
Tension lever
0.013 - 0.05
0.10
and guid
e:
fever
8
(0.
0005·-
(0.00394)
holes,
and
sup-
(0.3
15
)
0.0020)
porting lever
shaft clearanct:
(c)
Measure the cle.arance between the sch3ckle pin
and
contro
l n,,:k hole. If
the
limit
is
r
••
ched ,
replace
th
e .st:hack.le
or
c
ontrol
rack.
Unit:
mm
{in.)
Item
Nomina!
Service
diameter
Standard
l
imh
SchackJe pin
and control
5
om
5 - 0.0056
rock hole
(0.197)
(0.0006 -
0.08
clearance
0.00022)
(0.0031)
-
(3) Swiveling lever
in'pection
Mea:s.lJre
Ihe
cl
earance between the swiv!1ing le\'er
sharr and bushing. If
th
e limit
is
reached, r
.place
the buslting.
When
replacing
the
bushing, replace
"0'1 r
ing
and oil seal, 100.
Unit:
mm
lin.1
Itam
NomInal
Standard
Service
diameter
li
mit
Swiveling
leyc
r
0.016 - 0.07
shart
and
11
(0.0006 -
0.15
bushing clear·
(0.433)
0.0028)
(0.0059)
anc.
--
-
(4) Torque
conuo
l lever inspect
ion
Measure
the
clearance
between
the
torque
control
lever bushing
and
supp
orting
p
in
. If
the
limit is
reached.
rep
lace the lever.
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