ALTERNATOR GP-CHARGING 1W7832 - Caterpillar

CHECKING FACE RUNOUT OF THE FLYWHEELFace Runout (axial eccentricity) of the Flywheel:
1. Install the dial indicator as shown. Put a force on the flywheel toward the rear.2. Set the dial indicator to read .000 in. (0.00 mm)3. Turn the flywheel and read the indicator every 90°. Put a force on the flywheel to the rear before each reading.4. The difference between the lower and higher measurements taken at all four points is the face runout (axial eccentricity) of the flywheel.Make reference to FLYWHEEL to find the maximum permissible runout for a particular flywheel.
CHECKING FLYWHEEL BORE
CHECKING FLYWHEEL CLUTCH PILOT BEARING BOREBore Runout (radial eccentricity) of the Flywheel:
1. Install the dial indicator (3) and make an adjustment of the universal attachment (4) so it makes contact as shown.2. Set the dial indicator to read .000 in. (0.00 mm)3. Turn the flywheel and read the indicator every 90°.4. The difference between the lower and higher measurements taken at all four points of the coupling bore is the bore runout (axial eccentricity) of the flywheel.5. Runout (eccentricity) of the bore for the pilot bearing for the flywheel clutch is measured the same way as above.Make reference to FLYWHEEL to find the maximum permissible runout for a particular flywheel.