Flywheel Housing - Inspect - Perkins 1104D NH1 Systems Operation Testing And Adjusting

74
Testing and Adjusting Section
4. Calculate the difference between the lowest
measurement and the highest measurement of the
four locations. This difference must not be greater
than 0.03 mm (0.001 inch) for every 25 mm
(1.0 inch) of the radius of the flywheel. The radius
of the flywheel is measured from the axis of the
crankshaft to the contact point of the dial indicator.
Flywheel Runout
Illustration 71
Typical example
1. Install Tooling (A) in illustration 71, as shown.
2. Set the pointer of the dial indicator to 0 mm
(0 inch).
3. Turn the flywheel. Read the dial indicator for every
45 degrees.
4. Calculate the difference between the lowest
measurement and the highest measurement of
the four locations. This difference must not be
greater than 0.30 mm (0.012 inch).

Flywheel Housing - Inspect

Table 12
Required Tools
Part
Tool Number
21825617
A Dial Gauge
g01273120
i02544044
Part Description Qty
1
Concentricity of the Flywheel
Housing
Note: This check must be made with the flywheel
and the starter removed and the bolts for the flywheel
housing tightened lightly.
Illustration 72
Typical example
1. Install Tooling (A). See illustration 72.
2. Set the pointer of the dial indicator to 0 mm
(0 inch).
3. Check the concentricity at intervals of 45 degrees
around the flywheel housing.
4. Calculate the difference between the lowest
measurement and the highest measurement. This
difference must not be greater than the limit that is
given in Table 13.
Note: Any necessary adjustment must be made on
the flywheel housing. Then, recheck the concentricity.
Alignment of the Flywheel Housing
Note: This check must be made with the flywheel
and the starter removed and the bolts for the flywheel
housing tightened to the correct torque.
RENR7967
g01199468