TM 5-3805-260-24
NOTE: If locknut (22) on the 3P2226 Collet is too tight, it
can cause interference in the operation of the dial
indicator.
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 3P1546 Calibration
Pin (7) which is held b) 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
Clamp.
NOTE: When checking pumps on the "slave" side [side
opposite from governor control lever (16)], put clamp
(25) on both ends of sleeve shaft as shown. Put dial
indicator (4) on the calibration pump (1) as shown. Hold
it tightly in place. Move shaft (24) toward the governor
end to remove end play. To remove any clearance in the
link- age, 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 steps 17 through
20,
ADJUSTING
FUEL,
PUMP
CALIBRATION
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 dial indicator).
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. If 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 permissible difference
between any two readings for all the pumps. If any two
readings are farther apart than the 0.050 mm range, do
ADJUSTING FUEL PUMP 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 TOLERENCE or if the two
readings have a dif-
2-61
