NOTE: If locknut (22) on the 3P2226
Collet is too tight, it can cause
interference in the operation of the dial
6V190 CLAMP INSTALLED 24. Shaft.
25. 6V190 Clamp.
Put 6V190 Clamp (25) in the position shown, next
to the transfer pump end. Clamp (25) pushes
shaft (24) down against the bottom of its bearing.
The other end of shaft (24) is held down against
its bearing by 3P 1546 Calibration Pin (7) which is
held by 8S7271 Screw (11). The combination of
forces from clamp (25) and calibration pin (7) is
necessary to hold shaft (24) in its normal
operating position against the lifting force from
the spring in calibration pump (1).
DIAL INDICATOR POSITION
4. 3P1568 Dial Indicator with 3P2226 Collet. 25.
NOTE: When checking pumps on the
governor control lever (16)], put clamp
(25) on both ends of sleeve shaft as
Put dial indicator (4) on the calibration pump (I)
as shown. Hold it tightly in place. Move shaft
(24) toward the governor end to remove end play.
To remove any clearance in the linkage, lift the
crossover lever dowel and rapidly let it go. Do
this several times. Then look at the reading on
the dial indicator (4).
INSTALLING CLAMP ON "SLAVE" SIDE
25. 6V190 Clamps.
13. If the dial indicator (4) reading is more than ± 0.050
mm from "0.000" (outside the TOTAL TOLERANCE), do
DIAL INDICATOR READING
Desired reading for all pumps is "0.000"
Maximum permissible tolerance for pump
readings In any FUEL INJECTION PUMP
GROUP is 0.100 mm (-0.050 to +0.050 mm on
Maximum permissible differences between
any two pumps in the same FUEL INJECTION
PUMP GROUP Is 0.050 mm.
TOTAL TOLERANCE shows the maximum
permissible range of pointer positions which
are acceptable. It any reading is outside the
range of TOTAL TOLERANCE, do ADJUSTING
FUEL PUMP CALIBRATION for all pumps.
BAND is an example only. It shows a 0.050
mm range. This range shows the maximum
readings for all the pumps. If any two
readings are farther apart than the 0.050 mm
CALIBRATION for all pumps.
If the dial indicator (4) reading is near either end
of the TOTAL TOLERANCE, check another pump. If
the next reading is outside the TOTAL TOLERANCE or if
the two readings have a difference of 0.050 mm or