2200LZJE-HO-C6-N_2013.12.
Chapter 5 Maintenance
Compound 2-stage Screw Compressor 2016**C 5.7 Reassembly
5-60
e) Attach the oil seal retainer, which has oil seal attached, along the rotor shaft by using two standard 8
mm eye bolts (as shown in Photo 117). At this time, ensure that the retainer's oil hole is on the upper
side of the rotor shaft, and accurately align the rotation stop spring pin 【20】, which has been
screwed to the bearing cover, with the notch of the retainer.
After assembly, try to turn the retainer's eye bolts to check that they are secure. If they are properly
aligned, the retainer will not rotate.
f) Secure the oil seal sleeve to the rotor shaft by using two set screws 【529】 (Photo 118).
Photo 117 Photo 118
g) Then, insert the O-ring 【49】 for the oil seal retainer (Photo 119).
Take special care because users frequently omit to insert the O-ring 【49】 for oil
seal retainer.
h) Attach the seal collar 【109】, which has the O-ring 【112】
attached to its inner periphery, to the rotor shaft. Before
assembly, apply sufficient lubricant (prepared for use
during assembly) to the rotor shaft and seal as if intending
to wash away dirts.
Push in the O-ring 【112】, while taking care not to get it
damaged by the step on the rotor shaft (Photo 120).
i) By using two seal collar set screws【111】, tighten the seal
collar against the countersunk holes in the rotor shaft (Photo 121).
Tightening the seal collar at other places than the countersunk holes can cause damage to the rotor
shaft which can lead to leakage.
Photo 120 Photo 121
Photo 119
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