Specifications

Page 2-2 Bacharach, Inc. Instructions 77-9045
CUMMINS INJECTORS CD3 AUDIT KIT
Test
5. Set up the calibrator for running a Cummins
3/8 PTD (or similar) injector per the CD3
calibrator instruction manual.
6. Turn circuit breaker on side of calibrator ON.
7. Press the START button.
8. Aim tachometer lightbeam at perforated
window and read RPM. (Consult tach. instruc-
tions if any problems with reading occurs.)
9. Record reading.
10. Press the STOP button.
11. If RPM is 1050 ±1 rpm, skip to step 13.
12. If RPM is not 1050 ±1 rpm:
a. Make sure the motor matches the line
frequency (see specifications on the name-
plate inside left side door).
b. Operate the calibrator without an injector
installed and without push rod adapters.
c. Recheck the speed with a tachometer.
d. If problems still exist, check the drive shaft,
pump shaft or motor shaft binding and
replace necessary parts.
13. If speed is normal, turn circuit breaker OFF.
2.1.2 Using a Mechanical Tachometer
Set-up
1. Switch circuit breaker OFF.
2. Remove the pulley cover.
NOTE: Older units (shown in the photos)
use a sliding pulley cover (newer units
have no side rails), slide the cover
backward until the track is disengaged.
3. Stand behind calibrator and locate camshaft
center hole on the end of the camshaft. This is
where the tachometer will be held during test.
4. Find the cover interlock limit switch on the
calibrator table top, just behind the drive shaft
next to the cover latch plate.
Figure 2-1. Using Tachometer
Figure 2-2. Camshaft Center Hole
Figure 2-3. Limit Switch
ÌLIMIT SWITCH
ËCAMSHAFT
æCENTER HOLE
ÍRIGHT TERMINAL SCREW