Wilo Atmos TERA-SCH Serie Einbau- Und Betriebsanleitung Seite 36

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Fig. 27: Exploded view of Atmos TERA-SCH hydraulic (version with gland pack)
No. Part description
Bolts for bearing housing
1
Bearing housing (Drive end)
2
Bearing
3
Supporting ring
4
Bearing cover (Drive end)
5
Water thrower
6
Hexagon plug
11
Bolts for seal housing guard
12
Seal housing guard
13
Impeller key
14
Bolts for split flange
15
Lifting bolts
16
Table 15: Exploded view of Atmos TERA-SCH hydraulic (mechanical seal version with sleeves)
9.5.2 Disassembling the top housing
36
Maintenance/repair
No. Part description
17 Air cock
18 Jack screws for opening top housing 32
19 Hose pipe
20 Top pump housing
21 Impeller
22 Bottom pump housing
23 Dowel pin for location
24 Shaft
25 Wear ring
27 Dowel pin for wear ring
29 Bolts for bearing cover
30 Bearing cover (Non-Drive End)
Close the isolating valves in suction and discharge line.
Drain the pump and open the air cock (17).
Remove both dowel pins (23) and all split flange nuts.
Types with gland packing
ƒ
Remove bolts for gland cover (40) from both ends and slide away the gland cover
(37).
ƒ
Remove gland packing (38) and logging ring (39).
ƒ
Connect suitable lifting tackles to the lifting bolts (16) provided on top half housing
(20).
ƒ
Remove the top housing.
ƒ
Remove the paper gasket placed in between the two housing halves.
Types with mechanical seal
ƒ
Disconnect the hose pipes (19).
ƒ
Loosen the nuts of the mechanical seal covers (7) and slide the covers away on the
shaft (24).
ƒ
Remove all bolts (15) that are joining top and bottom housing (20, 22).
ƒ
Connect suitable lifting tackles to the lifting bolts (16) provided on top half housing
(20).
ƒ
Remove the top housing.
ƒ
Remove the paper gasket placed in between the two housing halves.
No. Part description
31 Lock washer
Lock nut
33 Bearing housing (Non-Drive End)
34 Sleeve
35 O-ring for sleeve
36 Sleeve nut
37 Gland cover
38 Gland packing
39 Logging ring
40 Bolts for gland cover
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