10
field repair
General
Geareducers can be repaired in the field—however, major repairs
require the use of a fully equipped machine shop. When field repair
or replacement of parts is necessary, the following procedure is
recommended for the disassembly and assembly of the unit. If any
O-ring, oil seal or gasket is to be reused, care should be taken
not to damage it during disassembly. Parts which contain O-rings
or seals should not be jerked or twisted past a shoulder or edge.
These parts are marked with an asterisk (*) in the description
below. O-rings, oil seal and gaskets should be carefully inspected
for damage before being reinstalled. SPX recommends that new
O-rings and oil seal be installed during every major overhaul.
Disassembly of Major Subassemblies
Part numbers and references—refer to Figures 6 and 7.
1. Drain oil.
2. Remove interstage bearing cap.
3. Pull water slinger off fan shaft.*
4. Lift off Geareducer case cover.
5. Pull interstage shaft and fan shaft subassemblies out of
Geareducer case simultaneously.
6. Remove pinion cage subassembly.*
Figure 7 Disassembly of Major Subassemblies
2
3*
4
5
5
5
6*
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