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MAINTENANCE AND ADJUSTMENT
Table
of
standmi adjustment
data
APPLICABLE TO:
Injection
pump.
090000-9721
(2) Low-speed control
(ND·PES4A65B320RND972)
Speed
Rack position
Governor. 090800-4030
Lever angle
rpm
mm
lin. I
(ND-EP/RSV250.1750A2/302ND403)
I
275
5.5
:!:O.l
)1
I.
Injection timing adjustment
(0.2165
±
0.0039)
(I) Direotion of rot.tion: Clockwise" viewed from
High·speed control
5.0
±
0.1
drive
side
lever angle MINUS
330
(0.1969
± 0.0039)
(2)
injection
order:
I
-
3
-
4 -
2
26~
:!:
3
0
with
sub-spong
(3)
Int.",,!
between
,uccessive
injections
:
90' ± 30'
200
~
11.0(0.433
1)
(4) Pre-strokc
:
1.9
5
±
0.05 mm (0.077:t
0.0020
in.)
NOTE
:
Figures
in box
[:=:J
are for initial I",,,
(5)
Tappet clearance: 0 .2 rnm (0.0079 in.) minimum
setting.
2. Injection qoantity adjustment
(3)
Control
by
adaptor
action
The listed values are
based
on these conditions:
I) injection
nozzles, 093400-0090,2) nozde
opening
Lever
angle
Speed
Rack pos ition
(injecting) pressure. 120
kglcm'
(1706 psi),
3)
fuel
rpm
mm lin.)
supply
pressure.
2.0
kg/em' (28.4
psi),
and
4)
high·
400
1O
.4±
OJ
p",,,ur.
tester pump, 1.6 rom (0.0630 in.)
di
•
.
,
6
Slo
±
SO
(0.4094
±
0.0039)
mm (0.2362 in.)
ma.
x 600 mm
(23
.622
in.).
8.8
±
0.1
650
(0.3465
±
0.0039)
Pump
Rack
Ind
ividual
Permi$sibJe
'pei!d
position
Pumping
injection
difference
strokes
rpm
mm{in.}
cc {cu
in
.1
cc (cu
in.
1
(4)
Match
between
injection
pump
and
engine
1000
85
200
7.2-7.8
0.4
Pump
Total
injection qt.
(0.335)
(0,44-Q.48)
(0.02)
Lt!Ive-r
,peed
a:
(cu
In.)/500
Remarks
8.0
6.4-7.0
0.4
aog le
rpm
..
roke,.4
cvl.
1000
(O315)
200
(0.390-0.43)
(0.02)
With
adaptor
600
81
:t
2
6.0
5.0-8.0
1.0
5 I
0
±
SO
(3
.1
890 ±
0.0787)
'pring
200
(0.236)
500
(O.30-QA9)
(0.06)
1200
62
t
2
With lorque
(2.4409
± D.07S7)
spring
3, Governor adjustment
The
listed
values are based
On
these
conditions:
J) govenled
speed range. 275
-
1200 rpm. and
2}
swivel·lever
adjusting
screw setting.
backed
away
.bou! four (4) rotations
from
the fully tightened
position.
(I) High·speed
control
Laver angtQ
Speed
Reck position
rpm
mm (in.)
1100
8.2
±O
,1
(03228
±
O,0039)
47'
±
5'
1230
7.0
±
0.1
(0.2756:l: 0.0039)
1290
;;
4.0
(O.1575)
76
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