Cummins/Onan FM-JFE2 — Generator Disassembly - Removing Frame From Engine
Repair & overhaul
For the Cummins/Onan FM-JFE2, from the Cummins/Onan operator's manual.
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Before you start
- Handle the frame carefully; a drop could bend or distort the armature shaft.
Procedure
- Disconnect all line wires or batteries.
- Remove any accessories mounted on the generator frame such as control box or gasoline tank.
- Raise the generator brushes in their holders until the brush springs lock them in a raised position.
- Loosen the four bolts clamping the generator frame to the crankcase, removing the two bottom ones first.
- Unbolt and remove the frame carefully so it does not drop or rest on the armature.
Specs & values
- Brush spring tension approximately 15-1/2 to 19-1/2 oz
Source: Cummins/Onan operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.