IDLER GP-FRONT 1941170 - Caterpillar

Face Runout (Axial Eccentricity) of the Flywheel
Table 1
Tools Needed
Part Number Part Name Quantity
8T-5096
or
1U-8869 Dial Indicator Gp 1
Illustration 1 g00286049
Checking face runout of the flywheel
Refer to Illustration 1 and install the dial indicator. Always put a force on the crankshaft in the same direction before the dial indicator is read. The object is to remove any crankshaft end clearance.
Set the dial indicator to read 0.0 mm (0.00 inch).
Turn the flywheel at intervals of 90 degrees and read the dial indicator.
Take the measurements at all four points. The difference between the measurements must not exceed 0.013 mm (0.0005 inch) runout per 25.4 mm (1.0 inch) of the diameter of the flywheel. Bore Runout (Radial Eccentricity) of the Flywheel
Table 2
Tools Needed
Part Number Part Name Quantity
7H-1942 Dial Indicator 1
Illustration 2 g01192232
Checking bore runout of the flywheel
(1) 7H-1945 Holding Rod
(2) 7H-1645 Holding Rod
(3) 7H-1942 Dial Indicator
(4) 7H-1940 Universal Attachment
Install 7H-1942 Dial Indicator (3). Make an adjustment of 7H-1940 Universal Attachment (4) so the dial indicator makes contact on the flywheel.
Set the dial indicator to read 0.0 mm (0.00 inch).
Turn the flywheel at intervals of 90 degrees and read the dial indicator.
Take the measurements at all four points. The difference between the measurements must not be more than the following values for the maximum permissible runout (radial eccentricity) of the flywheel. Flywheel ... 0.15 mm (0.006 inch)
Illustration 3 g00286058
Flywheel clutch pilot bearing bore
To find the runout (eccentricity) of the pilot bearing bore, use the preceding procedure.
The runout (eccentricity) of the bore for the pilot bearing in the flywheel must not exceed the following values: Flywheel ... 0.13 mm (0.006 inch)