FLYWHEEL BALANCE WEIGHTS
TESTING AND ADJUSTING
- Bolt-on rotor shaft extension must be piloted on generator shaft with 0.001 in (0.03 mm) loose to 0.001 in (0.03 mm) tight
fit and doweled to maintain alignment during reassembly.
- Completed assembly must be dynamically balanced within same limits as manufacturer prescribes for the rotor without
the extension. Rotor should be suspended on the shaft extension and the rear bearing when balance is checked.
Maximum
Weight To Be
Supported
A
B
C
D
E
On Flywheel
Engine
SAE
in
in
in
in
in
lb
Model
No.
mm
mm
mm
mm
mm
kg
3412
0
1.00
1.94
2.94
3.9355 + 0.0005
22.490 + 0.005
1,416
25.4
49.3
74.7
99.96. + 0.0127
571.25 + 0.13
642
D349
0
0.75
1.75
2.50
4.7230 + 0.0005
22.490 + 0.005
1,630
19.1
44.5
63.5
119.964 + 0.0127
571.25 + 0.13
741
D348
0
0.75
1.75
2.50
4.7230 + 0.0005
22.490 + 0.005
1,630
19.1
44.5
63.5
119.964 + 0.0127
571.25 + 0.13
741
Figure 3
115
