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mycom 3225MSC User Manual

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2202MYJE-MY-C8-N_2018.02.
Chapter 5 Maintenance and Inspection
Compound 2-stage Screw Compressor 3225**C 5.5 Reassembly
5-41
5.5.2 Bearing Head and Main Bearings
The main bearing (O-ring type) [27] is installed by a light press fit.
a) Align the notch on the main bearing with the spring pin [14] that is driven in into the bearing head
[11], and then push it in with a pad. For the alignment, it is convenient to use a tool such as a guide
bar.
b) After the bearing has been inserted, install the snap ring [29] to retain the bearing in position (Photo
056). Securely install the snap ring to be fully seated in the ring groove, by pushing the snap ring
with a guide bar or the like, or by lightly hitting the guide bar with a hammer while placing the guide
bar on the snap ring.
Photo 056 High-stage Bearing Head
Photo 057 Low-stage Bearing Head
c) On the low-stage bearing head [11-1], install the O-ring [197] in the part where the push rod passes
through. Then, use hexagon socket head cap screws [166-1] to install the O-ring gland [326-1].
When press fitting the bearing, it is recommended to prepare a collared plastic cylinder (spacer) that
exactly fits inside the inner diameter of the bearing and also a collared weight that fits inside the
plastic cylinder as shown in Figure 5-14. Then, hit the top of the weight for easy press fitting of the
bearing. Instead of the above, special tools are also available from us for the high-stage and
low-stage main and side bearings. These tools are similar to the above described weight, and the
surface finish of which is improved to eliminate the need of a plastic spacer (Refer to Chapter 7,
Section 7.5). You are welcome to place an order if necessary.
Figure 5-14 Example Tool for Press Fitting the Bearing

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mycom 3225MSC Specifications

General IconGeneral
Brandmycom
Model3225MSC
CategoryCompressor
LanguageEnglish

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