Circor IMO E12L Series, Руководство по обслуживанию изделия

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Figure 2 – Mechanical Seal (24)
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1
3
3A
3C
1. Seat
2. O-Ring
3B
3. Rotating Assembly
3A. Bellows Assembly
3B. Bellows Assembly O-Ring
3C. Set Screw
H. 9 Remove and Disassemble Inboard Cover (Discharge side)
Remove cap screws (18) and (washers (60) 118 rotor size pump only) from inboard cover (12).
Insert two 1/2"-13" x 2" jacking bolts in inboard cover (12). Tighten jacking bolts evenly to
remove inboard cover from case (1). When cover removed from case remove jacking bolts.
NOTE: The inboard cover (12) removal includes removal of O-rings (70 & 7), back up ring (6),
balance piston bushing (15), stop (17), Truarc ring (66) or cap screws (66) and plug (20).
Disassemble the inboard cover (12) as follows:
a. Remove O-ring (70) from groove of inboard cover (12). Remove O-ring (7) and back-up
ring (66) from groove of inboard cover (12).
b. For rotor sizes 118 to 156 – Remove Truarc ring (66) from groove of inboard cover
(12).
c. For rotor sizes 187 and 200 – Remove cap screws (66) from stop (17).
d. Remove stop (17) and balance piston bushing (15) from inboard cover (12).
Remove O-rings (19) from grooves of case (1).
For rotor sizes 137 to 200 – Remove spacer (16) from case (1). Remove spacer (16) from
case (1).
For rotor sizes 137 and 187 – Remove spacer (65) from case (1).
Remove plug (11) with O-ring (10) from case (1). Remove stop pin (9) from case (1)
by threading a 1/4”-20" x 2 1/2” bolt into bore of case and pulling stop pin from case.
CAUTION ATTENTION.
DO NOT drop housings as they emerge from case.
e. Remove housings (3 & 4) from case (1). Separate housings (3 & 4) and remove vent pins
(8).
f. Remove O-ring (7) and back-up ring (6) from groove of housing (4).
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