2200LZJE-HO-C6-N_2013.12.
Chapter 5 Maintenance
Compound 2-stage Screw Compressor 2016**C 5.7 Reassembly
5-45
5.7.6 Suction Cover and Side Bearings (High/Low-stage)
a) The side bearing (O-ring type) is dimensioned in such a way that it is lightly press-fit to the suction
cover.
Align the notch of the bearing with the positioning pin【8】which is driven into the suction cover, and
press-fit the bearing. During the press-fit, check the position of the pin and the notch. If the position
is misaligned, pull the bearing out once and then press-fit it again.
When the assembly is finished, secure the side bearing by using the stop ring (Photo 071).
On the high-stage too, when the side bearing has been attached, secure it by using the stop ring
【29】.
Photo 070 Attaching Side Bearing Photo 071 Securing with Stop Ring
(Low-stage) (Low-stage)
b)
After that, attach the balance piston to the high-stage only, by following the procedure below.
After attaching the stop ring 【37】 for O-ring spacer, attach the spacer 【36】.
The size of the O-ring 【35】 for balance piston sleeve is rather small. Extend it slightly all over with
your hands before attaching it.
Attach the balance piston sleeve 【33】.
Screw two set screws 【34】 for stopping rotation (Photo 078), and then attach the stop ring 【37】.
Photo 072 Attaching Side Bearing Photo 073 Securing with Stop Ring
(High-stage) (High-stage)
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