Flowserve Limitorque B320 series - Disassembly and Reassembly; Disassembly and Reassembly of B320-10 through -80

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Limitorque B320 Series FCD LMENIM3201-02 – 01/15
flowserve.com
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Disassembly and Reassembly
No special tools are required for assembly/disassembly of the B320 series bevel gear operators.
c WARNING: Valve must be in fully opened position with no pressure in the line to perform work
on the gear operator.
a CAUTION: During disassembly and reassembly, all removed components should be cleaned and
placed in an area free of dirt, water, or other foreign material.
a CAUTION: Care should be taken in removing the ball bearings located between the bevel gear and
thrust housing. These bearings are non-caged, hardened ground balls.
The table below indicates the number of ball bearings utilized by each B320 size.
Table 6.1 – Quantity of Ball Bearings
Operator Quantity
B320-10 42
B320-20 42
B320-30 57
B320-40 57
B320-50 53
B320-70 74
B320-80 80
B320-90 66