2200Q2JE-HO-KHM-N_2015.02.
Chapter 5 Maintenance and Inspection
Ammonia Semi-hermetic Motor with K-series Compressor 5.1 Precautions for Maintenance
5-15
5.4.1 Compressor Oil Seal and Motor Oil Seal
When the replacement of compressor oil seal [32] and motor oil seal [617] is required, use the following
procedure for the assembling. The size of oil seals for the compressor and motor is different, but the
mounting method is the same. Pictures of the following procedure exemplify the case of the
compressor oil seal.
a) Mount the oil seal (following picture to the left) by allowing its flat side to face downward and to
match the mounting hole (position) of the oil seal retainer (following picture to the right).
b) Place a disk-like inserting jig (which is slightly larger than the oil seal) onto the oil seal.
While holding the jig by hand, lightly hit it in the top, bottom, right and left with a hammer to insert
the oil seal gradually (see the following picture to the right).
Such a steel disk with a diameter of
Φ85 to 90 mm and thickness of about 5 mm (following picture
to the left) or a 10-mm or so thick wooden disk with the similar diameter may be used as a jig.
c) As soon as the motor oil seal is inserted in the motor oil retainer [618], the mounting is complete.
For the compressor oil seal, after inserting the compressor oil seal retainer [26], install the oil seal
gland [32-1]. Mount the oil seal gland and tighten it with four bolts [32-2] (following picture to the
right).
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