
88 SEBU8219-01
Maintenance Section
Bearing Temperature - Measure/Record
(Table 11, contd)
Bearing
Outside
Diameter
mm (inch)
Bearing
Inside
Diameter
mm (inch)
Part
Number
Generator
Frame
Size
Bearing Bore
in Bracket
mm (inch)
Bearing
Shield
(Type)
Bearing
Cavity
Grease
mL (oz)
Rotor Shaft
Diameter
mm (inch)
240.000 mm
(9.4488 inch)
110.000 mm
(4.3307 inch)
108-1761
800
(1)
240.002 mm
(9.4489 inch)
to
240.033 mm
(9.4501 inch)
Double 148.00 mL
(5.0 oz )
to
236.80 mL
(8.0 oz )
110.012 mm
(4.3312
inch)
to
110.028 mm
(4.3318
inch)
280.000 mm
(11.024 inch)
130.000 mm
(5.1181 inch)
154-3032
820 280.002 mm
(11.0237 i nch)
to
280.032 mm
(11.0249 i nch)
Double
N/A
130.028 mm
(5.1 192 inch)
to
130.051 mm
(5.1201
inch)
(1)
Inboard bearin
g
(2)
Outboard bearing
(3)
109-7687 bearing is preferred.
(4)
This bearing is
a spherical roller bearing. T his bearing is greased from the bracket’s front side. All of the other bearings are ball bearings.
(2)
This bearing is on the same end as the exciter.
(3)
This bearing is on the drive end o f the gener ator.
i01952106
Bearing Temperature -
Measure/Record
SMCS Code: 4471-082-TA
Bearing temper
ature detectors are optional on
generators. Bearing temperature detectors are
used with equipment that has been provided by
the customer i
n order to measure the bearing
temperature. Bearing temperature detectors may
help to prevent premature bearing failure.
A bearing temperature that is 50 °C (122 °F) above
the ambient temperature may require a change in
operation. Th
e unit should be shut down in order to
prevent damage if the bearing temperature is 50 °C
(122 °F) above the ambient temperature.
i02229322
Belts - Inspe ct/Adjust/Rep lace
SMCS Code: 1357-025; 1357-040; 1357-510
Inspection
Inspect the alternator belt and any accessory belts
for wear and for cracking. Replace the belts if the
belts are not in good condition.
Check the belt tension according to the information in
the Service Manual, “Specifications”.
Slippage of loose belts can reduce the efficiency
of the driven components. Vibration of loose belts
can cause unnecessary wear on the following
components:
•
Belts
•
Pulleys
•
Bearings
If the belts are too tight, unnecessary stress is placed
on the components. This reduces the service life of
the components.
Replacement
For applications that require multiple drive belts,
replace the drive belts in matched sets. Replacing
one drive belt of a matched set will cause the new
drive belt to carry more load because the older drive
belts are stretched. The additional load on the new
drive belt could cause the new drive belt to fail.