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Rotary C.B. Union - High Temperature (Sizes 1/4" to 1-1/4")
Maintenance and Overhaul
• Remove bolts and washers (4) which allow for removal of the adapter (5) and body (17). • Remove the bellows subassembly and the gasket of the seal kit (6). • Remove locking screws and unscrew the carbon subassembly (RH thread) of the seal kit (6). • Remove the spacer (12). • If the spindle subassembly (13) is in poor condition i.e. there is considerable wear is evident on the bearing, discard and replace. • If the condition of the spindle subassembly (13) appears reasonable, it can be dismantled by removing all locking screws and unscrewing the thrust ring (14 - RH Thread). The bearing subassembly (15) can now be removed and should be replaced. • The spindle (16) should be examined on the hard chromed bearing diameter and, if wear of more than 0.05 mm has occurred on the hardened surfaces, it should be discarded and the entire spindle subassembly (13) should be replaced.
• If the adapter (5) is Type
R.S., remove locking screw (3), unscrew locking ring • Replace seal kit (6), spindle subassembly (13 - see Step #6) and if Type R.S., the C/T Bearing (2). Handle the seal kit with care to avoid damaging the lapped seal faces. • Thoroughly clean all parts before reassembly (which is virtually the reverse of the above steps). • After reassembly, follow the recommended installation procedures and allow for a suitable run-in period to ensure the seals are working correctly before refitting to the machine.
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