Nidec 22765-01, Руководство пользователя

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Page 17
Single-Bearing Alignment
Before assembling the generator to the prime mover, remove the
exciter cover and adapter cover. Remove the blocking holding the
drive discs to the adapter. Also make sure the generator bearing end
clearance is not less than the total engine crankshaft axial movement
plus 1/16" (1.5875 mm). The generator is shipped from the factory
with 1/8" (2.54 mm) minimum bearing end clearance. (This dimension
is recorded on the Factory Recorded Dimensions sheet, packaged with
the generator.)
Measure the distance from the end of the exciter shaft extension to the
bearing housing on the endbracket (dimension A in Figure 11). This
dimension is recorded on the Factory Recorded Dimensions sheet,
packaged with the generator. If the dimensions do not match, move the
rotor axially relative to the stator until the dimensions are equal.
Check the engine flywheel housing pilot’s radial face and runout by
mounting a dial indicator and measuring the flywheel to the flywheel
housing as shown in Figure 5. See Table 1 for maximum allowable
runout.
Figure 11 Generator Coupling Check
Bearing
Endbracket
Exciter field
Shaft extension
A
Check the engine flywheels radial and face runout by mounting a dial
indicator and measuring the flywheel housing to the flywheel as show
in Figure 3. See Table 1 for maximum allowable runout.
Measure the generator drive plate diameter (dimension
S of Figure 12)
and flywheel bore diameter (dimension B of Figure 13). Drive plate
diameter must not be greater than the flywheel bore diameter. Also
check to make sure the hole centers match (dimension W of Figure 12
and dimension C of Figure 13).