Nidec 22765-01, Руководство пользователя

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Page 10
Assemble to Prime Mover
Alignment
This manual covers three alignment options. Follow the procedures
that correspond to your generator model.
If your generator model as two bearings but no adapter to bolt to an
engine flywheel housing see Two-Bearing Alignment. If your generator
model has two bearings and an adapter for bolting to a flywheel
housing, see Two-Bearing Close-Coupled Alignment. If your generator
has one bearing and drive plates, see Single-Bearing Alignment.
Consult the factory for belt or gear drive alignment.
Two-Bearing Close-Coupled Alignment
Check the engine flywheel housing pilot’s radial and face runout by
mounting a dial indicator and measuring the flywheel to the flywheel
housing as shown in Figure 2. See Table 1 for maximum allowable
runout.
NOTE: Mounting of the indicators must
allow complete rotation of the prime
mover.
Use dial indicators that are rigid so
indicator sag won’t be a factor. Using the
shortest offset distance of the indicator
bracket will reduce the effects of indicator
droop or sag.
During alignment, you may also need to
compensate for engine expansion due to
heating. Generator expansion is generally
not considered a factor.
If the genset is moved to a different
location, check alignment before startup.
WARNING: Do not pry on the
generator fan blades. The blades can
weaken, which could result in serious
injury or death from flying debris.
Figure 2 Flywheel Housing Check
Shaft
Flywheel
Flywheel housing
Dial indicator
pointer for radial
runout
Dial indicator pointer for
face runout