mycom K Series, Инструкция по эксплуатации

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2200Q2JE-HO-KHM-N_2015.02.
Chapter 5 Maintenance and Inspection
Ammonia Semi-hermetic Motor with K-series Compressor 5.1 Precautions for Maintenance
5-9
5.3.6 Motor Bearing Outer Race and Motor Oil Seal
a) The outer race of motor bearing [613] is mounted in the motor bearing retainer [614]. As long as
the bearing does not show any particular abnormality, there is no need of removing it. In case of
replacing the motor bearing, remove the snap ring A [613-1] for the motor bearing (following
picture to the left) and pull the bearing outer race toward yourself to take it off. The inner bearing
race is shrink-fit to the shaft end of motor rotor bushing [608]. For details of removing the inner
race, refer to the Section 5.3.8. f).
b) The motor oil seal [617] is fixed to the inside of the
motor bearing retainer while it is mounted in the
motor oil seal retainer [618] and tightened with six
bolts [619]. The oil seal retainer can be taken off by
removing the bolts (picture to the right).
c) As long as no fault is found in the lip (in contact with
the shaft) of the motor oil seal (following picture to the
left), the oil seal need not be taken off. When the
replacement of the oil seal is required, take it off by
using the following procedure:
d) Note that part of the inner circumference of the oil
seal is exposed from the shaft hole of the oil seal
retainer. While allowing the edge of a flat blade screw
driver to hit on it, push out the oil seal by slightly hitting the head of the screwdriver with a hammer
(following picture to the right). While changing the hitting position of the screwdriver little by little,
gradually push it out.
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The oil seal, once it is removed, it is deformed and consequently cannot be used
again. If the oil seal is removed, replace it with a new one.