Adjust Load Sensing Timer - Toyota 3b Repair Manual

FU-56
FUEL
SYTIEU--t-@tion Pumo
(5)
Using
a
hand press, install
the
sleeve plug
subassemblY.
I
oo
t@
cP
.9
o-
.E. P
cc
rdre
speed
side
-
5i1I3["
Adjusting
Lever
Position
FUo251
13.
ADJUST LOAD SENSING TIMER
(a)
Adjusting
the
starting and end points
of the
load
sensing
timer with the governor shaft'
Slowly move
the adjusting
lever from
the
maximum
speed side to
the idle
speed side, and secure
it at
the
point where the pump inner pressure begins to
drop'
Measure
the injection volume
at the
drop
point
(starting point).
(c)
(d)
lf any injection volume is not at standard value, adjust with
the governor shaft.
HINT: The injection volume
will
increase approx'
3
cc
(0.18 cu
in.)
with
each
1
/2turn
of the screw.
(b)
Measure
the injection volume'
Item
Adjusting
lever position
Pump
revolution
(rpm)
No.
of
measuring strokes
B,38
Maximum
speed side
1,400
2@
11B,148
r,360
Item
Pump
revolution
(rpm)
Measuring
strokes
lnjection
volume
cc
(cu
in.)
Measured value at Step
(b) minus
B
1,400
2AO
1.2(O.O7l
+
0.5
(0.03)
3B
1.2lO.O7l
+
0.6
(0.04)
118
1,360
3.6 (0.22)
+
0.5
(0.04)
148
1.0
(0.06)10.5
(0.04)
L
(