TM 5-3825-226-24
reading must be (0.000 ± 0.010 mm) as shown.
When the pump calibration is correct make a
record and then do the same procedure for all the other
pumps.
NOTE: When calibrating pumps on
the "slave" side [side opposite 'from
governor control lever (1-6)], put
clamp (25) on both ends of the sleeve
shaft as shown in picture number
A92947XI.
INSTALLING CLAMP ON "SLAVE" SIDE
25. 6V190 Clamps.
GOVERNOR ADJUSTMENTS
CAUTION
A mechanic that has the correct
training is the only one to make the
adjustment of low idle and high idle
rpm. The correct low idle and high
idle rpm, and the measurements for
adjustment of fuel setting are given in
the RACK SETTING INFORMATION.
Check engine rpm with a tachometer that has
good accuracy. If the low idle or high idle rpm needs an
adjustment, use the following procedure:
ADJUSTMENT OF LOW IDLE RPM
1. Adjustment bolt for low idle. 2. Locknut.
1.
For adjustment of low idle, loosen locknut (2) and
turn adjustment bolt (I) to get as near as possible
to the correct low idle rpm.
2.
After the low idle adjustment is correct, tighten
locknut (2).
ADJUSTMENT OF LOW IDLE RPM
1. Adjustment bolt for low Idle. 2. Locknut.
3.
To make an adjustment to the high idle rpm,
remove the small cover (4) at the top rear of the
fuel system.
4.
Loosen locknut (5) and turn adjustment screw (3)
to get as near as possible to the correct high idle
rpm.
ADJUSTMENT OF HIGH IDLE RPM
3. Adjustment screw. 4. Cover. 5 Locknut.
5.
After each idle adjustment is made, move the
governor lever to change the rpm of the engine.
Now move the governor lever back to the point of
first adjustment to check the idle adjustment.
Keep doing the adjustment procedure until the
low idle and high idle rpm are the same as given
in the RACK SETTING INFORMATION.
6.
After adjustment of high idle rpm is correct,
tighten locknut (5) and install cover (4).
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