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
an
gle
rpm
mm
lin.
I
(ND-EP/RSV250.1750A2/302ND403)
I 2
75
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: 1.95 ± 0.05 mm (0.07
7:t
0.0020 in.)
NOTE: Figures
in
box
[:=:J
are for initi
al
I"
,,,
(5) Tappet
cl
earance: 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)
fue
l
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
iv
idu
al
Permi$sib
Je
'pei!d
position
Pumping
inject
ion
difference
strokes
r
pm
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
·s
peed 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.
27
56:l: 0.0039)
1290
;;
4.0
(O.1575)
76
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