Download Bacharach INJECTOR CALIBRATOR CD3 Specifications

OPERATION
INJECTOR CALIBRATOR CD3
2. Open the hinged door on the left side of the
calibrator to expose the lower pulleys.
3. Insert barring tool into roller link assembly.
4. Push down on the barring tool to raise the
motor enough to shift the drive belt from one
set of pulleys to the other.
5. For 2000 RPM setting required for running the
DD injectors, move belt to the smaller diameter
pulley on camshaft (top) and the matching
pulley on the motor shaft (bottom).
6. Before lowering the motor, slide the motor
block shim (marked CUM) from under the
leveler, as it is not needed for DD injectors.
5 For Cummins Use Large Pulley
Figure 3-34. Pulley
7. Lower the motor to its original position.
Next, check for proper cam installation (Sec. 3.2.3).
3.2.3 Changing Cams
The cam is secured in place on the tapered end of
the camshaft by a 3/4 in. hex nut and a 3/4 in. plain
washer, and is locked to the shaft by a key.
When shipped from the factory, the calibrator has
Cam 189 (67-6370) installed (used for most
Cummins injectors). To change the cam:
3 Barring Tool
(push down)
1. Switch the power On/Off Switch to OFF.
6 Shim
Figure 3-35. Changing Speed
2. Raise hinged lids of the cambox and flywheel.
3 Barring Tool
3. Insert barring tool into one of the radial holes
in the flywheel to hold camshaft in position.
4. Bar over flywheel until push rod is fully extended from cambox (cam at maximum lift).
5. Install push rod lock to hold the push rod when
the cam is being removed.
NOTE: Failure to do so can lead to
disengagement of follower parts and
subsequent early failure of cambox.
6. Using a 1-1/8 in. box wrench, unscrew and
remove the nut, washer and cam.
7. Select proper cam for the injector to be tested:
Using Cummins service publications as a guide.
Page 3-16
2 Cambox Lid
Bacharach, Inc.
6 Wrench
Figure 3-36. Changing Cams
Instructions 67-9319