2200LZJE-HO-C6-N_2013.12.
Chapter 5 Maintenance
Compound 2-stage Screw Compressor 2016**C 5.6 Overhaul
5-15
5.6.1 Mechanical Seal
Photo 009
No. Part Name
101 Mating ring
Stationary
rings
102 Insert lock pin
103 O-ring
109 Seal collar
Rotating
rings
111 Seal collar set screw
112 O-ring
528 Oil seal sleeve
529 Sleeve set screw for oil seal
744 O-ring
48 Oil seal retainer
49 O-ring
50 Oil seal
20 Spring pin
Figure 5-2 Details of BBSE Type Mechanical Seal
5.6.1.1 Disassembly
a) Of the eight hexagon socket head cap screws 【53】 securing the seal cover 【51】, remove six and
leave two on the opposing sides.
b) Loosen the remaining two screws alternately and evenly, a little at a time. After loosened to some
extent, the seal cover of the mechanical seal will be raised slightly by the force of the inside spring,
creating a gap under the cover. The gap will not be created if the gasket is sticking to both surfaces.
In this case, free the cover by screwing the 8 mm eye bolts into the forcing screw holes in the seal
cover to separate it.
c) Use a container to catch the oil that will leak from the gap in the seal part.
d) Pull out the seal cover, while keeping it parallel with the shaft (rotor shaft). The mating ring is
attached inside the seal cover by using an O-ring. Be careful not to let the mating ring and the shaft
damaged by contact.
e) Remove the O-ring 【49】 from between the seal cover and oil seal retainer.
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