8.
Pull the bearing housing (134) off the shaft.
9.
Loosen the setscrew (388L) on the oil ring sleeve (324) and remove the sleeve.
10. Use a bearing puller in order to remove the radial bearing (168) from the shaft.
333A
383
122
168
360A
160
371D
355
353
100
Figure 42: Radial bearing removal
11. Remove the inboard bearing end cover the inboard labyrinth seal (333A), and the bearing housing
gasket (360A) will come off with the inboard cover (160).
12. Remove the seal gland nuts (355) and the mechanical seal (383).
Refer to the instructions provided by the mechanical seal manufacturer.
6.4.5 Disassemble the thrust end (ball bearing pumps)
Figure 43: Thrust bearing housing disassembly
1.
Remove the oil filter (550A) and filter plug (113Q) from the bearing frame (134). The set screws
(113R) do not need to be removed.
2.
If the pump has the optional bearing cooling fan, remove the guard endplate (234E), guard (785D),
cooling fan (392B) and pump endplate (234D).
3.
Remove the bearing end cover bolts (371C and 371D) from the outboard thrust bearing end cover
(109A).
4.
Remove the outboard bearing end cover (109A) and top hat (785C). The outboard labyrinth seal
(332C) and the bearing housing gasket (360A) will come off with the outboard bearing end cover
(109A).
5.
Remove the dowel pins (469J) between the bearing housing flange and the head flange.
The connection point of the housing to the casing is referred to as the saddle.
6.
Unbolt the bearing housing from the saddle by removing the four nuts (427J).
7.
(Optional) Remove the studs (371T). It may be necessary to rotate the bearing housing in order to
remove the inboard end cover bolts (371D).
8.
Remove the oil ring (114A).
9.
Pull the bearing housing (134) off the shaft.
10. Bend lockwasher tab to allow removal of the thrust locknut (136) and the lockwasher (382).
11. Remove the oil ring sleeve (443B), which is held in place by the thrust locknut (136).
12. Use a bearing puller in order to remove the thrust bearing (112A) from the shaft (122).
6.4 Disassembly
3610 i-FRAME API 610 11th Ed/ISO 13709 2nd Ed, API Type BB1 Single-Stage, Axially-Split, Between-Bearing IOM
71
Summary of Contents for 3610 i-FRAME
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